Dissertations / Theses on the topic 'Indigenous plants'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Indigenous plants.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Tarrant, Valerie M., and valerie tarrant@deakin edu au. "Melbourne's indigenous plants movement: The return of the natives." Deakin University. School of History, Heritage and Society, 2005. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20061207.113857.
Full textLarson, Daniel. "Non-indigenous freshwater plants : patterns, processes and risk evaluation /." Uppsala : Dept. of Environmental Assessment, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200715.pdf.
Full textAlbrecht, Matthew A. "Reproductive Biology of Medicinal Woodland Herbs Indigenous to the Appalachians." Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1163427974.
Full textEssack, Magbubah. "Screening extracts of indigenous South African plants for the presence of anti-cancer compounds." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8767_1210844967.
Full textEarly man dabbled with the use of plant extracts to cure ailments. This practice has been passed down from generation to generation and today more than 50% of the world'sdrugs are natural products or derivatives thereof. Scientists have thus established a branch of research called natural product research. This branch of research involves the identification and purification of secondary metabolites with a specific biological activity. The methodology involves the screening of plant products for a specific biological activity, purification of the biologically active natural product by separation technology and structure determination. The biologically active natural products is then further scrutinized to serve as a novel drug or lead compound for the development of a novel drug. This research exploited this research methodology.
Abudjain, Ibrahim M. N. "The use of indigenous plants in landscape of Saudi Arabia." Thesis, University of Sheffield, 2003. http://etheses.whiterose.ac.uk/6009/.
Full textGutu, Ketema Tolossa. "Bioassay-guided phytochemical study of indigenous medicinal plants of Ethiopia." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/28964.
Full textMailula, Alice Shaena. "The ethnotaxonomic principles of useful indegenous plants of the Mamabolo Community in the Limpopo Province." Thesis, University of Limpopo, 2009. http://hdl.handle.net/10386/2369.
Full textThis study contains documentation and naming of indigenous plant species of the GaMamabolo area. Knowledge about their classification and their local natural resources has been acknowledged through this study. It is not only naming and classification but extending information about interaction of useful indigenous plants with human society. This is followed by a survey of 85 plant species found in the Mamabolo area. The immense cultural significance of the traditional knowledge system is portrayed in this study. ii
Babajide, Jelili Olalekan. "Chemical and biological investigation into some selected African indigenous medicinal plants." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_7625_1297404173.
Full textAfrican medicinal plants are commonly used throughout Africa to treat a variety of ailments including wounds and ulcers, cough and chest complaints, gingivitis, fever and gonorrhoea, indication all related to infection and inflammation. In screening several plant species from an inventory of common medicinal plants from both South and West Africa for diverse medicinal purposes, 6 plants were selected because of their interesting and useful ethnomedicinal values.
Mosime, Bonolo. "In vitro conservation of selected endangered plant species indigenous to the Cape Floristic Region, South Africa." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2343.
Full textThis study focused on optimising four types of in-vitro conservation methods, namely: 1), micropropagation, 2) in-vitro slow growth, 3) seed germination and 4) cryopreservation for selected endangered plant species indigenous to the Cape Floristic Region. It is one of the targets set by United Nations millennium development goals, to integrate different conservation measures in order to preserve plant diversity and mitigate losses of genetic diversity. Therefore this study uses Phalaenopsis hybrids as a trial species that can be studied for the conservation of endangered Disa and Eulophia species through micropropagation and in vitro slow growth. Also conservation attempts on Leucadendron and Mimetes species that occur in the Cape Floristic Region were attemted to increase population densities by increasing germination percentages using smoke. Furthermore, the study attempted to store seeds by assessing different cooling rates for optimising cryopreservation measures for effective conservation. The use of tissue culture to increase propagules especially critically endangered species in South African has proven to be feasible. For the trial hybrids, shoot and protocorm explants of Phalaenopsis Psychosis Pink X P. No. 1; P. Large white X P. Large pink; P. No. 1 X P. Large pink; P. Mini pink X Brighton belle; and the P. aphrodite formed clusters of protocorms and shoots when cultured on ½ strength MS media supplemented with 10, 20 and 30gL-1 banana extract or ½ strength Murashige and Skoog, (1962) (MS) media supplemented with peptone. Continuous protocorms formation could therefore be obtained by culturing endangered Disa and Eulophia shoots and protocorms on banana containing media. Plantlet conversion from somatic embryos produced on 10gL-1 banana extract enriched media was successfully achieved on ½ strength MS supplemented with 20gL-1 sucrose and no plant growth regulators in the medium. However, optimum rooting was achieved on ½ strength MS supplemented with 30gL-1 of banana extract and this medium yielded the highest survival percentages for plantlet acclimatisation. Furthermore, ½ strength MS supplemented with 1gL-1 of peptone served as a stimulant for shoot development and protocorm formation. When coupled with banana extract at all stages of development, regeneration and rooting were enhanced.
Guler, Mehmet. "Evaluation Of State Owned Indigenous Coal Fired Power Plants Including Coal Reserves." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611591/index.pdf.
Full texts third place in lignite production in 2008. Having low calorific value together with high ash and moisture content, most of lignites extracted is being consumed in thermic power plants located near those reserves. In the first two chapters of this study, energy in the world and Turkey will be considered seperately, then coal resources in Turkey will be analysed in the next coming chapter. Indirect and direct greenhouse emissions presented to the UNFCCC will be handled in the fifth chapter In the last chapter, first past and present performances of all indigenous coal fired power plants will be analysed, then after projecting their generation and fuel needs, they are evaluated considering with the reserves they are located. Finally, at the end of decomissioning of those power plants, remaining reserves will be re-evaluated and additional new units will be proposed accordingly.
Mopai, Kgaugelo Lydia. "Screening, purification and characterisation of an active Hydroxynitrile Lyase (Nitrilase) from indigenous South African Plants." Thesis, University of Limpopo, 2013. http://hdl.handle.net/10386/1334.
Full textHydroxynitrile lyases (HNLs) are enzymes that catalyse enantioselective cleavage of the substrate in a reaction and are also used as important industrial biocatalysts for the synthesis of chiral cyanohydrins. The aim of the study was to screen indigenous South African plants for potential hydroxynitrile lyase activity, purify and biochemically characterise the active hydroxynitrile lyase(s) from the selected plants. Several indigenous plants were randomly collected, identified and screened for HNL activity. The plant parts (leaves, seeds or fruits) were processed using established experimental protocols in order to obtain the crude enzyme extracts. The enzymatic conversion of benzaldehyde and potassium cyanide to mandelonitrile was optimised and consequently used for the screening of HNL activity. Enzyme activity was detected in the crude enzyme extracts of Kalanchoe spp and Senecio spp and these were then designated as Ks and Sb, respectively. Ammonium sulphate fractionation, DEAE Toyopearl 650M and Concanavalin A chromatography techniques were then used in the purification process of the active crude enzyme extracts. Subsequently, two purified active fractions were isolated from each plant species with molecular masses estimated at 64.64 kDa and 64.06 kDa for the KsHNL enzymes and 70.60 kDa and 74.04 kDa for SbHNL enzymes. The optimum temperature and pH of all the isolated enzymes were determined as 50°C and pH 5, respectively. The experimental Km and Vmax values of the enzymes were respectively determined to be 0.33 and 0.73 mM and 1.238 and 1.948 μM/min for KsHNL; while that for SbHNL enzymes were 5.86 and 0.22 mM and 9.741 and 1.905 μM/min. The effect of additives and metal ions (viz., DTT, DEP, mercury chloride, magnesium chloride and zinc chloride) was determined. The experimental data obtained alluded to the notion that both KsHNL and SbHNL enzymes may contain the cysteine and serine residues next to their active sites and that a histidine residue may be involved in the catalytic activities of both the isolated KsHNL enzymes and one of the SbHNL enzymes. All the isolated enzymes from the two plant species did not seem to contain an FAD group. These findings compared favourably to the theoretical type II HNLs, although with a slight difference in that they displayed high molecular weights. Kalanchoe spp and Senecio spp are the two indigenous South African plants that were found to contain active HNLs. The isolated HNLs from the two plants have a potential to be xv purified to homogeneity, cloned and overexpressed into robust recombinant enzymes that can be used for large scale industrial applications.
Shava, Soul. "The use of indigenous plants as food by a rural community in the Eastern Cape : an educational exploration." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1003699.
Full textNtshidi, Zanele. "A comparative assessment of the quantity and sources of water used by alien invasive prosopis spp and indigenous Acacia karroo in the Northern Cape Province." University of the Western Cape, 2015. http://hdl.handle.net/11394/4760.
Full textInvasive alien plants (IAPs) are often reported to use more water than indigenous plants. Inaddition, IAPs have an ability to adapt to harsh environmental conditions and they tend to spread at rapid rates, thereby threatening the country’s water resources, agricultural land, and biodiversity. Much of South Africa is expected to get drier in future due to climate change and the new climatic conditions are also predicted to accelerate the rate at which alien plants will spread. Approximately 10 million hectares are currently estimated to have been invaded by alien plants in South Africa, with an estimated average annual rate of spread of more than 5%. The first objective of this study was to compare the water use by deep rooted tree species which include invasive alien Prosopis (sp) trees and the co-occurring indigenous A. karroo. These trees are growing in a flood plain of a groundwater dependent catchment in the Northern Cape Province. Both species are dependent on groundwater and thus compete with local communities for this resource. The second objective was to determine the sources of water that the trees were using in order to understand the impacts of each species on groundwater resources. Transpiration was measured using the heat ratio method of the heat pulse velocity sap flow technique while the volumetric soil water content was monitored at several depths down the soil profile using automated capacitance soil water content probes. Weather data was collected using an automatic weather station. Stable isotopes of oxygen and hydrogen from plant, soil and groundwater samples were analysed to determine the sources of water used by the trees. Average tree density was approximately 613 stems per hectare for Prosopis compared to about 100 stems per hectare for A. karroo. Comparative measurements of water use shows that the annual stand level transpiration from Prosopis invasions was approximately 353 mm/year while that from A. karroo was only about 137 mm/year. Differences in stand transpiration were a result of the higher plant density for Prosopis than A. karroo. There were no significant differences in the transpiration rates of the two species for trees with a similar transpiring leaf area. Application of a two compartment linear mixing model for the oxygen isotope ratio during the peak transpiration period in summer showedthat Prosopis derived 23% of its water from the unsaturated zone and 77% from the saturated zone. A. karroo on the other hand derived 53% of its water from the unsaturated zone and47% from the saturated zone. Diurnal fluctuations in groundwater levels were strongly related to the transpiration dynamics of both species. This supports the observation that these deep rooted trees have substantial impacts on groundwater at the study site. Root sap flow patterns of Prosopis showed evidence of hydraulic redistribution wherein the groundwater abstracted by the tap roots was deposited in the shallow soil layers by lateral roots. However, the root sap flow patterns of A. karroo growing adjacent to the Prosopis did not show this phenomenon.
Mukhadi, Fulufhelo Licken. "Phenology of indigenous and alien vascular flowering plants on sub-Antarctic Marion Island." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/6890.
Full textENGLISH ABSTRACT: Species’ seasonal behaviour is of paramount importance in understanding community functioning and dynamics. Recently, plant phenology has further gained significance as a reliable indicator of climate change impacts. Despite the importance of understanding plant dynamics, there are relatively few plant phenological records for the sub-Antarctic region, and where records exist they are often not extensive. Sub-Antarctic Marion Island, typical of Southern Ocean Islands, offers a useful setting for addressing these knowledge gaps. This study documented the vegetative and reproductive phenologies (or aggregate phenological patterns) of twelve indigenous and three alien vascular plant species on the island. The phenological differences among the species and distinct seasonal groupings (e.g. early, intermediate and late species) were examined. I also investigated the phenological differences among the indigenous and alien plant species. Furthermore, the onset of selected reproductive phenophases from the current records was compared with historical records for determining the extent of climate change-related alterations in phenology. Phenological data were collected fortnightly on five, 5 m x 5 m permanent plots per species (except for a few species) for a full growing season. Thus the sample size is n = 5 for all plant species except for Crassula moschata (n = 4), Juncus effusus (n=4) and Rumex acetosella (n=1). Sites of the same species were separated by at least 500 m except for the alien plant, Juncus effusus, where all four known populations were selected despite two of these populations being < 500 m apart. This study indicated that Marion Island plants grow throughout the year with no major peaks except in Azorella selago and Acaena magellanica which showed winter dormancy. However, reproduction in most plant species predominately occurred in spring and summer months. Pringlea antiscorbutica and Poa cookii were the first two species to set flower buds in September while most species dispersed their seeds in summer except for Agrostis magellanica and Crassula moschata which dispersed in early autumn. Distinct from most temperate systems, the reproductive seasonality displayed by Marion Island plant species is explained more by daylength than by temperature, perhaps due to the region’s typical thermal aseasonality. Interestingly, many cooccurring species and/or clades across the Falkland, Kerguelen, Macquarie and South Georgia Islands also showed similar flowering onset date to the Marion Island plants, further confirming their daylength sensitivity. However, other external factors seem to come into play at later events of reproduction. Consequently, fruit maturation time of similar species across the sub-Antarctic islands varied substantially despite the plants having flowered in the same month. Although plant species showed similar reproductive seasonality, there were significant differences among species phenologies i.e. phenophase timing, duration and peak occurrence dates. However, using 95% confidence intervals of Generalized Linear Models weighted means, and/or one-way ANOVA (Tukey post hoc test), three homogenous sets of species (early, late, or intermediate onsets) were identified based on flower bud, flowering and seed dispersal phenophase onset dates. The homogenous species groupings observed for flower buds also remained unchanged during flowering onset except for Cotula plumosa and Callitriche antarctica which switched groups. As for the seed dispersal timing, the pattern was not consistent with that of the flower bud and flowering onset homogenous groupings, except for Acaena magellanica and Agrostis magellanica which remained in the early and late groups, respectively. Conversely, in the case of the timing of other phenophases (pollen release, fruit set and fruit ripening), entire phenophase durations, and peak occurrence dates, species overlapped greatly, resulting in an unbroken progression or continuum of phenology among species. Similarly, the three alien plant species investigated here (Cerastium fontanum, Juncus effusus and Rumex acetosella) showed no consistent phenological differences from the rest of the species. However, a widespread alien plant species on Marion Island, C. fontanum, reproduced for most of the year, although its reproduction peak was in summer months as was the case for the rest of the species. This study also indicated that indigenous plant species have altered their reproductive phenologies since 1965. Although the response was species-specific, the majority of plant species significantly delayed the onset of reproductive activities in 2007 by comparison with 1965. However, it is not clear if the observed species response was caused by the now drier and warmer Marion Island climate or by discrepancies in reporting in the earlier studies and/or sampling differences between the recent and historical records. Therefore, these results should be taken with caution. In conclusion, this research provided a detailed phenological dynamics record for vascular plant species on the island. Over time these records may be used as a basis for monitoring and modelling the impact of climate on plant phenology on the island.
AFRIKAANSE OPSOMMING: Spesies se seisoenale gedrag is van die allergrootste belang in die begrip van gemeenskapsfunksionering en dinamika. Meer onlangs het plant fenologie verdere betekenis verwerf as ‘n betroubare indikator vir die impakte van klimaatsverandering. Ondanks die belangrikheid om plant dinamika te verstaan, is daar relatief min plant fenologiese rekords vir die sub-Antarktiese streek en waar rekords wel bestaan is dit dikwels nie omvangryk nie. Sub- Antarktiese Marion Eiland, tipies van Suidelike Oseaan Eilande, bied ‘n nuttige ligging om hierdie kennis gapings aan te spreek. Hierdie studie het die vegetatiewe en voorplantingsfenologieë (of gesamentlike fenologiese patrone) van elf inheemse en drie uitheemse vaatplantspesies op die eiland gedokumenteer. Die fenologiese verskille tussen die spesies en duidelike seisoenale groeperings (bv. vroeë, intermediêre en laat spesies) is ondersoek. Ek het ook die betekenisvolle fenologiese verskille tussen die inheemse en uitheemse plantspesies ondersoek. Voorts, die aanvang van gekose voortplanting feno-fases van huidige rekords is vergelyk met historiese rekords om die mate van klimaatsverandering verbandhoudende veranderings in die fenologie te bepaal. Fenologiese data is twee weekliks ingesamel op vyf, 5 m x 5 m permanente plotte per spesie (behalwe vir ‘n paar spesies) vir ‘n volle groei seisoen. Dus, die insamelings grootte is n = 5 vir al die plantspesies behalwe vir C. moschata (n = 4), Juncus effusus (n=4) en Rumex acetosella (n=1). Persele vir dieselfde spesies is geskei deur ten minste 500 m, behalwe vir die uitheemse plant, Juncus effusus, waar al vier populasies wat bekend is gekies is, ten spyte daarvan dat twee van hierdie populasies < 500 m uitmekaar is. Hierdie studie het aangedui dat Marion Eiland plante regdeur die jaar groei, met geen belangrike spitstye nie, behalwe in Azorella selago en Acaena magellanica wat ‘n winter rusperiode wys. Hoe ookal, voortplanting in meeste van die plantspesies het hoofsaaklik voorgekom tussen die lente en somermaande. Pringlea antiscorbutica en Poa cookii was die eerste twee spesies om blomknoppe uit te stoot in September, terwyl die meeste spesies hulle sade versprei het gedurende die somer, behalwe vir Agrostis magellanica en Crassula moschata wat versprei het in vroeg herfs. Duidelik van meeste gematigde sisteme, word die voortplanting seisoenaliteit, getoon deur die Marion Eiland plantspesies, verduidelik meer deur daglengte as deur temperatuur, moontlik weens die streek se tipiese termiese a-seisoenaliteit. Interessant, baie spesies en/of afstameling-groeperings wat saam aangtref word dwarsoor die Falkland, Kerguelen, Macquarie en Suid Georgia Eilande wys ook soortgelyke bloei aanvangsdatums as die Marion Eiland plante, nog meer bevestigend van hulle dag-lengte sensitieweteit. Hoe ookal, ander eksterne faktore blyk betrokke te raak by latere gebeure van voortplanting. Gevolglik het vrug rypwordingstyd van dieselfde spesies oor die sub-Antarktiek noemenswaardig verskil, ten spyte daarvan dat die plante in dieselfde maand geblom het. Alhoewel plantspesies dieselfde voortplanting seisoenaliteit gewys het, was daar ‘n noemenswaardige veskil tussen spesie fenologieë, m. a. w. feno-fase tydsberekenning, tydsduur en spits voorkomsdatums. Hoe ookal, deur gebruik te maak van 95% betroubaarheid intervalle van Algemene Lineêre Modelle gewigte gemiddelde en/of een rigting ANOVA (Turkey post hoc toets), is drie homogene stelle van spesies (vroeë, laat en intermediêre aanvang) geïdentifiseer gebasseer op blomknop, bloei en saad verspreiding feno-fase aanvangsdatums. Die homogene spesie groeperings waargeneem op blomknoppe het ook onveranderd gebly gedurende bloei aanvang behalwe vir Cotula plumosa en Crassula antarctica wat groepe geruil het. Vir die saadverspreiding tydsberekenning was die patroon nie konstant met die van die blomknop en bloei aanvang homogene groepe nie, behalwe vir Acaena magellanica en Agrostis magellanica wat in die vroeë en laat groepe respektiewelik gebly het. Omgekeerd, in die geval van tydsberekenning van ander feno-fases (stuifmeel vrysetelling, vrugwerp, vrugrypwording), volledige feno-fase tydsduur en spits voorkomsdatums het spesies grootliks oorvleuel, wat ‘n ongebroke vordering of deurlopendheid van fenologie tussen die spesies tot gevolg het. Ooreenkomstig het die drie uitheemse spesies wat hier ondersoek is (Cerastium fontanum, Juncus effusus en Rumex acetosella) geen bestendige fenologiese verskille van die res van die spesies gewys nie. Hoe ookal, ‘n wydverspreide uitheemse spesie op Marion Eiland, Cerastium fontanum, het deur die meeste van die jaar voortgeplant, hoewel met ‘n voorplanting spits in die somer maande soos die res van die spesies. Hierdie studie dui ook aan dat inheemse plantspesies hulle voortplanting fenologieë verander het sedert 1965. Alhoewel die reaksie spesiespesifiek was, het die meerderheid van die plantspesies hulle voortplanting aanvang aansienlik vertraag gedurende 2007 in vergelyking met 1965. Hoe ookal, dis nie duidelik of die waargeneemde spesie reaksie was as gevolg van die nou droër en warmer Marion Eiland klimaat of deur teenstrydighede in verslagewing gedurende die vroëre studies en/of insameling verskille tussen die onlangse en historiese rekords. Daarom moet hierdie resultate met versigtigheid hanteer word. In samevatting, hierdie navorsing voorsien ‘n gedetaileerde fenologiese dinamieka rekord vir vaatplantspesies op die eiland. Oor tyd kan hierdie rekords gebruik word as basis vir monitering en modellering van die impak van klimaat.
Mokgethi, Thabang. "The investigation of indigenous South African medicinal plants for activity against Mycobacterium tuberculosis." Master's thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/3434.
Full textThis study investigated four indigenous South African medicinal plants that are commonly used in traditional medicine for their bioactivity against Mycobacterium tuberculosis. Crude plant extracts were prepared and characterized using HPLC analysis. The crude rhizome extracts of Agapanthus praecox, leaf extracts of Olea europaea subsp.
Witbooi, Hildegard. "In vitro propagation of Agathosma betulina an indigenous plant of economic importance." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/841.
Full textAgathosma betulina (Berg.) Pillans, previously known as Barosma betulina, is a member of the Rutaceae family, and indigenous to the fynbos botanical biome of the Western Cape of South Africa. It is commonly known as buchu. Extracts as well as powdered leaves have traditionally been used for the treatment of various ailments. The increase in the international demand for A. betulina for health as well as food and beverage benefits, have raised concerns over exploitation of wild populations and the lack of horticultural information necessitates this study to evaluate the propagation of this economical important species. The main objective of this study was to establish a simple and highly productive micropropagation protocol for A. betulina through experimenting with nodal explants. Testing of the effect of various treatments (physical scarification, chemical scarification, GA, stratification, smoke and combinations thereof) on the in vitro germination of A. betulina seeds was done to elucidate the factors which control seed germination. The study revealed that the physical scarification and smoke-induced germination had a significant effect on germination percentages. In terms of germination rate, the radical generally started to appear after approximately 10 days in the physical scarification with smoke treatment. Initial decontamination methods with the exposure of various concentrations of NaOCl gave fatal results, however 1.5% NaOCl had more phenolic reactions rather than fungal or bacterial contamination. Interestingly, contamination rates of explants were influenced by the stage of maturity of the explant material. This plant material was used to test different strengths of regeneration media, to ensure that the explants receive ample nutrients. Results made exhibited that ½ MS was the best strength for growing A. betulina nodal explants. Compared comparison between in vitro derived explants and ex vitro collected explants showed that the ex vitro derived explants had significant results, but the explants lost vigour soon after the initial exponential growth leading to the explants dying off. Furthermore, ex vitro decontaminated plant material was not economically viable to continue with. Seedlings derived from germinated seeds appeared to be the preferred method of propagation as this spent the least time in culture and produced a stable plant with an established root system, which is essential during the hardening off process after in vitro growth. When exposing nodal explants to phytohormone 2,4-D it responds best to dosages 0.5mg Lˉ¹ and 1mg Lˉ¹. Phytohormone BA was very effective in producing soft friable callus. The best results were shown when 0.5mg Lˉ¹ BA was applied to ½ MS media. For both shoot length and multiple shoot production, a combination of phytohormones BA-NAA (1: 0.5mgLˉ¹) had the most significant results. Interestingly, a higher phytohormone concentration of NAA is necessary to develop multiple adventitious roots. The effect of 3mg Lˉ¹ was significant in that it resulted in multiple adventitious roots, but fewer calli was observed in this treatment. Micropropagation becomes valuable as little attention between subcultures is needed; making it less labour intensive compared to conventional nursery propagation systems where weeding watering and spraying of plants are labour intensive. In the traditional world of medicine, more so in Southern Africa, extracts are prepared by adding boiling water to the plant material; however commercial ethanol is used as an extractant. Establishment of the essential oil quality of the in vitro cultures post exposure to various treatments was done. Analysis of essential oils from A. betulina resulted in the identification of twenty one compounds. The results showed qualitative as well as quantitative differences amongst the samples used in the study. The highest relative concentration of limonene was observed in the callus of nodal explants after it was exposed to 0.5mg lˉ¹ NAA. No pulegone was found in this treatment making it ideal for limonene production. This suggests that liquid culture with the same treatment may produce more calli making it ideal for the production of limonene.
Wickens, Kristen M. "A search for biologically active compounds in Acacia (Mimosaceae) species." Thesis, Curtin University, 2003. http://hdl.handle.net/20.500.11937/1262.
Full textSithavhakhomu, Thilivhali Simon. "Challenges facing local communities in utilising and sustaining indigenous medicinal plants in the Thengwe village of Limpopo Province." Thesis, University of Limpopo (Turfloop Campus), 2012. http://hdl.handle.net/10386/827.
Full textThe main aim or purpose of this study was to look at the ways and the strategies of minimizing\ mitigating the over-harvesting of indigenous medicinal plants in order to use them sustainably. The task of identifying and assessing challenges facing local communities in utilizing and sustaining indigenous medicinal plants in Thengwe village and their implications on environmental conservation and management of natural resources was done during the pilot survey. The environmental field survey was conducted after gaining permission to enter into the identified study areas including the Mutavhatsindi Nature Reserve. The result revealed that most of the indigenous medicinal plants are used for healing, religious, economical and for protection purposes. Most of the indigenous medicinal plants in the study area are depleted and many of them are facing extinction. The study was qualitative in design. Semi-structured interviews and a questionnaire were used. The questionnaire had both open-ended and closed questions. The study area was Thengwe Village in the Mutale Municipality. The existence of medicinal plants is threatened by people `s perceptions and attitudes towards them. For some indigenous medicinal plants, depletion is at a high rate due to over-harvesting and because the plants when traded by herbalists they have a premium price attached to them. Interestingly, perhaps surprisingly, the majority of young people hold negative attitudes towards the indigenous medicinal plants due to poor knowledge of the value of indigenous medicinal plants, in contrast to the elders who appreciate their role and consider them as part of their culture, economy and religion. One of the findings is that medicinal plants were found to be important to the community members as the source of income and creation of jobs for the medicinal collectors who sell the species to traditional healers. For the reason of preserving indigenous medicinal plants and others as the environmental resources, this study recommends that there should be strong intergovernmental relationships between the National, Provincial and Local governments in order to prevent over-harvesting of the medicinal plants. The indigenous medicinal plants are equally important to biodiversity students and researchers who want to study and research indigenous medicinal plants which play an important role in the improvement of the livelihoods of community members. Furthermore, education campaigns within the communities and school learners are recommended to encourage the prevention, sustainability and utilization of the indigenous medicinal plants. Additionally, the legal authorities should be empowered to prosecute all people who may be found illegally in possession of indigenous medicinal plants, as well as endangered and protected species. Heavy fines and charges should be imposed on such culprits. Of importance is the fact that the results and recommendations of this study may facilitate the teaching of environmental education and management of natural resources as well as boost the local economy of the Vhembe district Municipality by showing that medicinal plants in the area can be seen as a viable tourist attraction.
Labriola, Christine. "Environment, Culture, and Medicinal Plant Knowledge in an Indigenous Amazonian Community." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/143.
Full textPhiri, E. E. "Species occupancy, distribution and abundance : indigenous and alien invasive vascular plants on sub-Antarctic Marion Island." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/47001.
Full textENGLISH ABSTRACT: Macroecological relationships have rarely been studied at wide spatial scales and across geographic ranges of species in the field in the sub-Antarctic. In this thesis I examined the occupancy, distribution and abundance, and the relationships thereof, of indigenous plants and alien species at broad (island-wide) and fine scales across sub-Antarctic Marion Island. The impacts of alien species and their interactions with indigenous plants were also investigated. I examined the nature of the abundance structure of a cushion-forming, vascular plant, Azorella selago, at the island-wide scale. Moreover, the hypothesis that species reach their highest abundances at the centre of their geographic range and decline in abundance towards the range edges was tested. Azorella selago cushions were counted in 8 m x 8 m quadrats, placed regularly at 1 minute latitude and longitude intervals across Marion Island. Using spatially non-explicit and explicit methods, this study showed that the abundance structure of A. selago had a more complex pattern of high abundance patches and low abundance gaps in its island-wide distribution. Subsequently, the hypothesis of an abundant centre distribution was not supported for A. selago across Marion Island. Rather, there were sharp discontinuities at both the coastal and altitudinal (667 m a.s.l.) limits for the species, between which little pattern in altitudinal abundance structure existed. Mice (Mus musculus) have recently been found to cause extensive structural damage to A. selago. The structural influence of mice on vegetation structure at the landscape scale has largely been overlooked on many sub-Antarctic islands. I mapped the distribution of evidence of mouse damage within the cushions of A. selago across the island using systematic (at 1 minute latitude and longitude intervals) and opportunistic sampling. Approximately 40 % of the systematically sampled sites had evidence of mouse damage to A. selago. Furthermore, a third of cushions in opportunistically sampled sites was damaged. Mouse damage was high in sites of low A. selago abundance, emphasizing that impacts of mice may be greater in low cushion abundance areas. This damage sometimes led to the disintegration of entire cushions. Given that A. selago acts as a nurse plant and supports high abundances of indigenous invertebrates, the impacts of mice on this keystone species may have significant ecological implications. Studies on interactions between alien and indigenous plants are limited within the sub-Antarctic. I examined the fine-scale distributions and co-occurrences of alien plants, Agrostis stolonifera and Sagina procumbens, and the indigenous Acaena magellanica (in 2 m x 2 m plots, subdivided into 0.25 m x 0.25 m quadrats) along rivers on Marion Island. Environmental variables were important for the occurrence of these species. In particular, 42.95 % and 24.82 % of the deviance in the occurrence of A. stolonifera and S. procumbens, respectively, was explained by environmental variables, compared to 17.35 % for A. magellanica. Furthermore, the co-occurrence of A. magellanica with A. stolonifera was significantly influenced by environmental variables. Significant positive spatial associations between A. magellanica and A. stolonifera were found, while the interactions of either species with S. procumbens were either spatially dissociated or random. Therefore, this study highlighted that alien species are responding to different environmental variables and conditions on Marion Island. Sagina procumbens seems to be less sensitive to the island’s environmental conditions and may thus be affecting biodiversity at broader ranges. This thesis provides unparalleled data on the distributions and interactions of indigenous plants and alien species for Marion Island. Alien species are undoubtedly posing significant threats to indigenous plants on the island and this thesis presents insight into interactions of species, specifically plants, an approach underrepresented in the sub-Antarctic to date.
AFRIKAANSE OPSOMMING: Makro-ekologiese verhoudings is selde bestudeer op wye ruimtelike skale en oor geografiese gebiede van spesies in die veld in die sub-Antarktiek. In hierdie tesis het ek die digtheid, bewoning, verspreiding en die verhoudings daarvan, van inheemse plante en uitheemse spesies ondersoek op breë (eiland-wyd) en smal skale oor sub-Antarktiese Marion Eiland. Die impakte van uitheemse spesies en hul interaksies met inheems plante is ook ondersoek. Ek het die aard van die digtheidstruktuur ondersoek van 'n kussing-vormende, vaatplant, Azorella selago, op die eiland-wydte skaal. Bowenal is die hipotese dat spesies hul hoogste digtheid bereik in die sentrum van hul geografies gebied en afneem in digtheid na die grense van die gebied getoets. Azorella selago kussings is getel in 8 m x 8 m kwadrante, wat eweredig geplaas is op 1 minuut breedte- en lengtegraad intervalle oor Marion Eiland. Deur gebruik te maak van ruimtelik nie-eksplisiete en eksplisiete metodes, het hierdie studie getoon dat die digtheidstruktuur van A. selago ‘n meer komplekse patroon van hoë digtheidslaslappe en lae digtheidsgapings in sy eiland-wyd verspreiding het. Vervolgens is die hipotese van 'n digte sentrum verspreiding nie gesteun vir A. selago oor Marion Eiland nie. Daar was eerder skerp diskontinuïteite by beide die kus- en hoërliggende (667 m bo seespieël) grense vir die spesie, waartussen daar ’n oneweredige patroon in digtheidstruktuur bestaan het. Onlangs is bevind dat muise (Mus musculus) uitgebreide struktuele skade aan A. selago veroorsaak. Die struktuele invloed van muise op plantegroei struktuur op landskapskaal is grootliks oor die hoof gesien op baie sub-Antarktiese eilande. Ek het die verspreiding van die bewyse van muisskade binne die kussings van A. selago oor die eiland gekarteer deur gebruik te maak van sistematiese (tot 1 minuut breedte- en lengtegraad intervalle) en opportunistiese opnames. Ongeveer 40 % van die sistematiese opname kwadrante het bewyse van muis skade aan A. selago vertoon. Verder, ‘n derde van die kussings in die opportunistiese opname kwadrante was beskadig. Muisskade was hoog in plotte met lae A. selago volopheid, wat beklemtoon dat impakte van muise groter mag wees in lae kussing digtheid gebiede. Hierdie skade het partykeer gelei tot die verbrokkeling van hele kussings. Gegewe dat A. selago as 'n verpleegsterplant optree en ’n hoë digtheid van inheemse invertebrata ondersteun, mag die impakte van muise op hierdie hoeksteen spesie beduidende ekologiese implikasies tot gevolg hê. Studies oor interaksies tussen uitheemse- en inheemse plante is beperk in die sub-Antarktiese gebied. Ek het die smal-skaal verspreidings ondersoek en medevoorkoms van uitheemse plante, Agrostis stolonifera en Sagina procumbens, en die inheems Acaena magellanica (in 2 m x 2 m kwadrante, subverdeel in 0. 25 m x 0. 25 m kwadrante) langs riviere op Marion Eiland. Omgewingsveranderlikes was belangrik vir die voorkoms van hierdie spesies. In besonder, 42.95 % en 24.82 % van die afwykings in die voorkoms van A. stolonifera en S. procumbens, onderskeidelik, is verduidelik deur omgewingsveranderlikes, vergeleke met 17.35 % vir A. magellanica. Verder, die medevoorkoms van A. magellanica saam met A. stolonifera is beduidend beinvloed deur omgewingsveranderlikes. Beduidende positiewe ruimtelike assosiasies tussen A. magellanica en A. stolonifera is gevind, terwyl die interaksies van beide spesies met S. procumbens was of ruimtelik nie-geassosieerd of lukraak. Daarom het hierdie studie uitgelig dat uitheemse spesies reageer op verskillende omgewingsveranderlikes op Marion Eiland. Sagina procumbens blyk minder sensitief te wees tot die eiland se omgewingsomstandighede en mag dus moontlik biodiversiteit op breër vlakke beïnvloed. Hierdie tesis voorsien onge-ewenaarde data oor die verspreiding en interaksies van inheems plante en uitheemse spesies vir Marion Eiland. Uitheemse spesies hou ongetwyfeld ’n beduidende bedreiging in vir inheems plante op die eiland, en hierdie tesis bied insig in die interaksies van spesies, spesifiek plante – ’n benadering wat swak verteenwoordig was in die sub-Antarktiese gebied tot op hede.
Cunningham, Anthony Balfour. "The resource value of indigenous plants to rural people in a low agricultural potential area." Doctoral thesis, University of Cape Town, 1985. http://hdl.handle.net/11427/28314.
Full textAsafo-Adjei, Robert Tetteh. "From imifino to umfuno : a case study foregrounding indigenous agricultural knowledge in school-based curriculum development." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1003731.
Full textSivaram, Sushil. "Assesment of Bioremediation Efficiency of Indigenous Bacteria and Plants at an Abandoned Acid Mine Drainage Site." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1289882865.
Full textCimi, Phumlani Viwe. "An investigation of the indigenous ways of knowing about wild food plants (imifino) : a case study /." Thesis, Rhodes University, 2009. http://eprints.ru.ac.za/1582/.
Full textKhosa, Josephine. "The legal protection of indigenous plants with reference to pterocarpus angolensis in Rolle village, Limpopo Province." Thesis, University of Limpopo (Turfloop Campus), 2008. http://hdl.handle.net/10386/825.
Full textDe, Vynck Jan Carlo. "Contemporary use and seasonal abundance of indigenous edible plants (with an emphasis on geophytes) available to human foragers on the Cape south coast, South Africa." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/d1020044.
Full textBalfour-Cunningham, Anthony. "The resource value of indigenous plants to rural people in a low agricultural potential area (Volume 1)." Doctoral thesis, University of Cape Town, 1985. http://hdl.handle.net/11427/28267.
Full textOdei-Addo, Frank. "Purification and characterization of serine proteinase inhibitors from two South African indigenous plants, Acacia karoo and Acacia schweinfurthii." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1291.
Full textSteele, Jonathan Charles Paul. "The pharmacological evaluation of plants used traditionally for the treatment of malaria by indigenous people of South America." Thesis, London School of Hygiene and Tropical Medicine (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312270.
Full textYoder, Ray. "Global resource sharing within World Team a study of World Team's relations to churches it plants and nurtures /." Theological Research Exchange Network (TREN), 1999. http://www.tren.com.
Full textNguyen, Phuong Hanh, Dam Cu Luu, and Quoc Binh Nguyen. "A survey of traditional medicinal plants used by K’ho people in the buffer zone of Chu Yang Sin national park, Vietnam." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-190810.
Full textBài báo này đề cập kết quả khảo sát cách sử dụng cây thuốc truyền thống của người K’ho sống ở vùng đệm Vườn quốc gia Chư Yang Sin, Việt Nam. Tổng số 66 loài cây thuốc thuộc 61 chi, 40 họ đã được ghi nhận thông qua quá trình phỏng vấn bán cấu trúc, thảo luận nhóm và từ những người dẫn đường đi thu mẫu có am hiểu về cây thuốc. Những cây thuốc truyền thống của dân tộc K’ho được tư liệu hóa gồm tên latin, tên phổ thông, bộ phận sử dụng và cộng dụng. Nhìn chung, dược liệu tươi được dùng đun hoặc sắc để uống là chủ yếu và lá là bộ phận được sử dụng phổ biến nhất. Kết quả nghiên cứu cho thấy cộng đồng K’ho vẫn phụ thuộc vào cây thuốc để chữa trị một số bệnh như đâu đầu, sốt, sốt rét, ỉa chảy, lị, gãy xương, bong gân và thấp khớp
Lopes, Bárbara Pacheco Carita Simões [UNESP]. "Estudo etnobotânico de plantas medicinais na Terra Indígena Kaxinawá de Nova Olinda, município de Feijó, Acre." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150997.
Full textApproved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-06-28T20:06:55Z (GMT) No. of bitstreams: 1 lopes_bpcs_me_bot.pdf: 4435164 bytes, checksum: 61bb45f0c38920856efe44492223bdf5 (MD5)
Made available in DSpace on 2017-06-28T20:06:55Z (GMT). No. of bitstreams: 1 lopes_bpcs_me_bot.pdf: 4435164 bytes, checksum: 61bb45f0c38920856efe44492223bdf5 (MD5) Previous issue date: 2017-05-04
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
As plantas medicinais constituem um domínio essencial na medicina e saúde indígena. As questões de saúde e doença na medicina indígena implicam conexões entre natureza, cultura, questões físicas e espirituais. Para os Kaxinawá, as doenças não possuem causas únicas, sendo produzidas por um conjunto de forças internas e externas, enquanto os desenvolvimentos físico, mental, emocional e espiritual estão relacionados entre si. Este trabalho busca compreender os elementos presentes na medicina Kaxinawá, apresentando características relacionadas à manipulação das plantas de uso medicinal em processos de saúde e doença. Assim, o objetivo geral desta pesquisa é realizar um levantamento etnobotânico das plantas medicinais utilizadas pelos Kaxinawá e, por meio de seu registro, contribuir para o fortalecimento da resiliência do sistema tradicional de saúde indígena envolvido. Esta pesquisa realiza-se com a participação das cinco comunidades da Terra Indígena Kaxinawá de Nova Olinda (TIKNO), no Alto Rio Envira, município de Feijó - AC, Brasil. A coleta dos dados foi realizada em quatro viagens de campo, por meio da observação participante e de 41 entrevistas semi-estruturadas para o levantamento das informações socioculturais dos/as participantes, e das plantas medicinais com a técnica da lista livre. A análise de dados foi quali-quantitativa. Foram utilizados parâmetros da etnobotânica quantitativa e a criação de categorias analíticas de agrupamento em função dos usos das plantas medicinais listadas. A alimentação está intimamente relacionada à saúde e foi percebida uma forte relação entre os usos das plantas e as figuras de animais que perfazem a caça consumida. As características dos alimentos e contextos individuais ou sociais podem determinar sintomas ou doenças e relacionam-se ao diagnóstico e à escolha do remédio utilizado. A partir de um primeiro olhar sobre os usos etnobotânicos das plantas medicinais na TIKNO, sua riqueza e abrangência, é possível perceber o reflexo da apropriação sociocultural da biodiversidade local e da cosmovisão Kaxinawá no entendimento de saúde e doença. As práticas para manutenção da saúde enfatizam a importância das plantas medicinais e do conhecimento tradicional dos Kaxinawá, o que também evidencia a relevância de seu registro.
Medicinal plants are a fundamental domain in Indigenous Medicine and health. Health and sickness matters in the Indigenous Medicine imply in connections among Nature, Culture, physical and spiritual subjects. For the Kaxinawá, diseases are not related to a single root, but are originated in a series of internal and external forces, as the physical, mental, emotional and spiritual developments are linked. The present study envoys to comprehend the elements present in the Kaxinawá Medicine, presenting characteristics related to the medicinal plants in health and sickness processes. Therefore, the objective of this study is to attain a ethnobotanical data collection regarding medicinal plants employed by the Kaxinawá and, through such record, to contribute to the strengthening of the related traditional indigenous health system resilience. This research was accomplished through the involvement of four communities from the Terra Indígena Kaxinauá de Nova Olinda (TIKNO), in the Alto Rio Envira, in the city of Feijó – AC, Brazil. Data collection was done through participating observation and 41 semi-structured interviews for the listing of sociocultural information of the participants, and for the medicinal plants the free listing technic was employed. Data analysis was quali-quantitative. Quantitative Ethnobotany parameters and the analytical categorization of grouping regarding employ functions of the listed medicinal plants were applied. Medicinal plants, for the Kaxinauá, are the equivalent for “Medicine”. Eating is intimately related to health and a strong relation between plant usage and animal models that represent the consumed game animal was noticed. Food characteristics and individual or social contexts can determine symptoms or diseases and are related to the diagnosis and medicine choice. From a first glance on the ethnobotanic usage of medicinal plants in the TIKNO, their richness and coverage, the repercussion of the local biodiversity sociocultural appropriation and the Kaxinauá worldview on health and disease can be perceived. The practices for health maintenance stress the medicinal plants and the Kaxinawá traditional knowledge importance, as well as the relevance of such record.
Ngobeni, Alister. "Isolation and characterization of bio-active compounds from euphorbia inaequilatera and dicerocaryum senecioides." Thesis, University of Limpopo (Turfloop Campus), 2012. http://hdl.handle.net/10386/1057.
Full textThis study was carried out to investigate antioxidant and antibacterial properties of 9 indigenous medicinal plants, viz., Euclea undulata (mogweregwere), Momordica balsamia (mogapu badimo), sefapa badimo, Senecio asperulus (makgonatšohle), Stiburus alopecuroides (mošalašuping), serolana, Euphorbia inaequilatera (kgama-maswana), mokgagapitsi and Clerodendrum glabrum (mohlokohloko) and to further isolate compounds that relate to these properties. Four extracting solvents with varying polarities viz. n-hexane, dichloromethane, acetone and methanol were used to extract the bioactive compounds from the ground powdered plant materials. The TLC plates, developed in three solvent systems viz., benzene, ethanol and ammonia (BEA, 18:10:0.2, v/v/v); ethyl acetate, methanol and water (EMW, 10:1.35:1, v/v/v) and chloroform, ethyl acetate and formic acid (CEF, 10:8:2, v/v/v), were visualised using DPPH, vanillin-sulphuric acid, visible light at 366 nm, UV light at 254 nm and bioautography for the presence of potential antioxidant and antibacterial compounds. The results of the screening process showed that only four plants possessed antioxidant compound(s) while six plants had antibacterial activity against Staphylococcus aureus. Euclea undulata “MKK” was observed to possess both antibacterial and antioxidant active compounds. Two antioxidant active compounds were isolated from two plants, viz., Euphorbia inaequilatera and Dicerocaryum senecioides. Solvent-solvent extraction, column chromatography and preparative TLC were used to further isolate and characterise target compounds. The antioxidant active compounds were found to separate well under EMW, an indication that the compounds are polar and intermediate-polar. The NMR spectra of the compound isolated from the D. senecioides revealed that the compound is a stilbenoid. For the first time, we report that the anti-inflammatory, antioxidant and antiproliferation properties of the D. senecioides reported by other studies performed in this laboratory could be due to this isolated stilbenoid compound. However, further studies are still necessary to confirm this assertion.
Wickens, Kristen M. "A search for biologically active compounds in Acacia (Mimosaceae) species." Curtin University of Technology, Department of Environmental Biology, 2003. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=15212.
Full textBoth A. pruinocarpa and A. adsurgens showed promise as anti-tumour activity when used in the Crown Gall Tumour Assay (CGTA). Acacia pruinocarpa and A. adsurgens both exhibited significant activity when compared to the control producing inhibition percentages of 31% and 37% respectively. Surprisingly, only one of the Acacia species tested inhibited pathogenic growth when tested on the common pathogens Staphylococcus aureus, Streptococcus pyogens and Candida albicans. Acacia bivenosa was the only species to exhibit any activity when tested on the pathogens. This activity, however is not considered to be significant, as the species was only active against one of pathogens tested, Staphylococcus aureus. In order to be considered to be significant, a species must be active against two or more pathogens. It is however, worthy of further evaluation. Acacia species are among the large number of plants that have long been regarded sources of biological activity. This study was guided by the indigenous use of Acacia species as sources of medicine, which led to the use of front-line bioassays. All of the species tested exhibited some form of biological activity. Acacia pruinocarpa demonstrated the most promise as a source of novel biologically active compounds exhibiting activity at very low concentrations. Such compounds have not been determined as it was outside the scope of this study to identify the active constituents of this species. However, it has been suggested that tannins are responsible for eliciting some of the activity observed in A. pruinocarpa. All of the species screened in this study are worthy of further evaluation. The bioassays used in this study are good examples of front-line bioassays. All of the tests used in the study fulfil the criterion, which defines a good test.
Gatehouse, Hazel A. W. "Ecology of the naturalisation and geographic distribution of the non-indigenous seed plant species of New Zealand." Diss., Lincoln University, 2008. http://hdl.handle.net/10182/1009.
Full textShah, Monali. "Biogenic production of Gold and Silver Nanoparticles using extracts from indigenous Australian plants: Their synthesis, optimisation, characterisation and antibacterial activities." Thesis, Shah, Monali (2016) Biogenic production of Gold and Silver Nanoparticles using extracts from indigenous Australian plants: Their synthesis, optimisation, characterisation and antibacterial activities. PhD thesis, Murdoch University, 2016. https://researchrepository.murdoch.edu.au/id/eprint/35062/.
Full textItholeng, Kebalepile Benedict Itholeng. "The indigenous knowledge of the local community towards weeds and alien invasive plants in the Dinokana area, North-West Province, South Africa / by Kebalepile Benedict Itholeng." Thesis, North-West University, 2007. http://hdl.handle.net/10394/2129.
Full textTessendorf, Sharon Erica. "Estimating the willingness-to-pay for restoring indigenous vegetation at selected sites in South Africa." Thesis, Nelson Mandela Metropolitan University, 2007. http://hdl.handle.net/10948/617.
Full textKimbugwe, Francis Kambugu. "An investigation of factors which influence integrating indigenous knowledge of medicinal plants into the learning programme for Grade 9 General Science." Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1003506.
Full textNguyen, Phuong Hanh, Dam Cu Luu, and Quoc Binh Nguyen. "A survey of traditional medicinal plants used by K’ho people in the buffer zone of Chu Yang Sin national park, Vietnam: Research article." Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A29111.
Full textBài báo này đề cập kết quả khảo sát cách sử dụng cây thuốc truyền thống của người K’ho sống ở vùng đệm Vườn quốc gia Chư Yang Sin, Việt Nam. Tổng số 66 loài cây thuốc thuộc 61 chi, 40 họ đã được ghi nhận thông qua quá trình phỏng vấn bán cấu trúc, thảo luận nhóm và từ những người dẫn đường đi thu mẫu có am hiểu về cây thuốc. Những cây thuốc truyền thống của dân tộc K’ho được tư liệu hóa gồm tên latin, tên phổ thông, bộ phận sử dụng và cộng dụng. Nhìn chung, dược liệu tươi được dùng đun hoặc sắc để uống là chủ yếu và lá là bộ phận được sử dụng phổ biến nhất. Kết quả nghiên cứu cho thấy cộng đồng K’ho vẫn phụ thuộc vào cây thuốc để chữa trị một số bệnh như đâu đầu, sốt, sốt rét, ỉa chảy, lị, gãy xương, bong gân và thấp khớp.
Tamuli, Roktima. "Chemical Investigation of Clerodendrum polycephalum for Anti-Malarial Compounds and its Chemical Diversity with Australian Clerodendrum." Thesis, Griffith University, 2022. http://hdl.handle.net/10072/414921.
Full textThesis (Masters)
Master of Science (MSc)
School of Environment and Sc
Science, Environment, Engineering and Technology
Full Text
Dalle, Sarah Paule. "The spatial distribution of traditional plant resources on an indigenous territory (Darien, Panama) and implications for management /." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33389.
Full textMcCune, Letitia M. "Antioxidants in Canadian boreal forest : indigenous medicinal plant treatments in relation to non-insulin dependent diabetes mellitus." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36654.
Full textWilliams, Saralene Iona. "Chang liver cell line as a model for Type II Diabetes in the liver and possible reversal of this condition by an indigenous medicinal plant." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/d1016179.
Full textCorsello, Rachel. "Increasing Germination Rates and Population Growth of Native Plant Gardens on College Campuses." Wittenberg University Honors Theses / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=wuhonors161787669427921.
Full textMARANGONI, Carmen. "Plantas medicinais tradicionalmente utilizadas no Nordeste do Brasil: potencial antimicrobiano para tratar distúrbios das vias gênito-urinárias." Universidade Federal de Perrnambuco, 2015. https://repositorio.ufpe.br/handle/123456789/16910.
Full textMade available in DSpace on 2016-05-09T14:32:17Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Carmen Marangoni_PPGBV_CCB_2015.pdf: 2902792 bytes, checksum: be5b9acdf98bf4f4ba08a353a0ed4480 (MD5) Previous issue date: 2015-04-15
CNPq
As infecções das vias gênito-urinárias são uma realidade muito difundida mundialmente. São causadas por bactérias, fungos e protozoários que colonizam os tecidos urogenitais. Existem muitos produtos naturais à base de plantas que demostraram ter eficácia no tratamento desses distúrbios. No Brasil, em muitas regiões, o emprego das plantas medicinais é prática comum. Estudos etnobotânicos realizados no Nordeste do Brasil com populações tradicionais, incluindo tribos indígenas, indicam que muitas plantas são utilizadas para tratar distúrbios das vias gênito-urinárias. Para melhor entender as práticas de cura tradicionais e corroborar as suas eficácia, neste estudo avaliou-se o potencial antimicrobiano in vitro de uma seleção de plantas medicinais tradicionalmente utilizadas para tratar esses tipo de transtorno por duas populações indígenas, os Pankararu e os Fulni-ô, que habitam a região semiárida do Nordeste do Brasil. As plantas foram coletadas no final da estação chuvosa na comunidade rural de Riachão de Malhada de Pedra, município de Caruaru. Extratos aquosos e hidroalcoólicos foram preparados com a parte da planta tradicionalmente utilizada e a avaliação da atividade antimicrobiana foi realizada com a técnica da microdiluição, testando os extratos frente microrganismos capazes de colonizar o aparelho urogenital (Candida albicans, C. tropicalis, Enterococcus faecalis, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa, Staphylococcus aureus, S. saprophyticus). A avaliação da atividade anti- Trichomonas vaginalis foi realizada através do teste da viabilidade dos trofozooides. Foi realizado o perfil fitoquímico e avaliada a atividade antioxidante dos extratos obtidos da forma tradicional. Foi também testada a correlação entre atividade antimicrobiana e uso tradicional, reportado como índice de Importância Relativa de Uso. Os resultados mostraram que os microrganismos mais susceptíveis foram os dois pertencentes ao gênero Staphylococcus, sendo os extratos aquoso e hidroalcoólico de Maytenus rigida e Spondias tuberosa os mais ativos (MIC = 0.2 mg/mL). As plantas cujos extratos da casca demonstraram maior espectro de ação foram Anacardium occidentale, Myracrodruon urundeuva e S. tuberosa. A maioria dos extratos testados mostrou atividade frente ao protozoário T. vaginalis. Os extratos de Sideroxylon obtusifolium mostraram uma toxicidade contra ao parasita comparável à do metrodinazol. O teor de taninos encontrado nos extratos mostrou ter uma correlação significativa com a atividade antimicrobiana, indicando um papel dessa classe de compostos na atividade aqui registrada. Encontrou-se também uma correlação significativa entre a atividade antimicrobiana e o uso tradicional. As espécies que apresentam maior atividade antioxidante foram Anadenanthera colubrina, M. urundeuva, S. tuberosa que coincidiram com as espécies que apresentaram os maiores teor de fenóis totais. O teor de flavonoides não parece estar correlato com a atividade antioxidante. Os resultados aqui apresentados apontam que as espécies A. occidentale, M. urundeuva e S. tuberosa produzem substâncias ativas frente a todos os microrganismos testados, justificando o uso tradicional. Essas três espécies, juntas com M. rigida e S. obtusifolium mostraram atividades promissora para o desenvolvimento de novos tratamentos contra T. vaginalis.
The urogenital infections are a common reality worldwide, caused by bacteria, yeasts and protozoans which are able to colonize the urogenital tissues. Several plant-based products demonstrated efficacy in treating this kind of disturbs. Ethnopharmacological surveys realized with traditional populations, including indigenous ones, in the Northeastern semiarid region of Brazil, showed that several plant species are utilized to treat urinary and genital tracts infections. To better understand the traditional medicine practices and corroborate their efficacy, in this study the antimicrobial potential of eight medicinal plants used to treat urogenital infections by two indigenous tribes, Pankararu e Fulni-ô, located in the Northeastern Brazil, was tested in vitro. The plant material was collected at the end of the rain season in the rural community Riachão de Malhada de Pedra, Caruaru district, in the agreste of the Pernambuco state. Aqueous and hidroalcoholic extracts were obtained using the part of the plant traditionally used. The antimicrobial assay was performed with the microdiluition method against human pathogens able to colonize the urogenital system (Candida albicans, C. tropicalis, Enterococcus faecalis, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa, Staphylococcus aureus, S. saprophyticus). The anti-Trichomonas vaginalis activity was evaluate testing the viability of the trophozoites. The phytochemical profile of the extracts was realized and the antioxidant activity was measured too. Furthermore the correlation between the antimicrobial activity and the traditional use, using the Relative Use Importance index, was tested. The results showed that the most susceptive of the tested microorganism were the two Staphylococcus species, being the aqueous and hidoalcoholic extracts of Maytenus rigida and Spondias tuberosa the most active ones (MIC = 0,2 mg/mL). Anacardium occidentale, Myracrodruon urundeuva and S. tuberosa bark extracts were found to have the broadest spectrum of activity. The majority of the extracts showed an anti-T. vaginalis activity. Sideroxylon obtusifolium extracts showed the higher activity toward the parasite, comparable with metrodinazol one. A positive correlation was encountered between the quantity of tannins and the antimicrobial activity, this indicates the role of this class of compounds in the activity here reported. A significant correlation was also found between the antimicrobial activity and the traditional use. The species presenting the higher antioxidant activities were Anadenanthera colubrina, M. urundeuva, S. tuberosa, which are the species with the higher total phenols content. No correlation between flavonoids content and antioxidant activity was found. The results of this study indicate that A. occidentale, M. urundeuva e S. tuberosa synthetize substances which act towards all the tested microorganism, justifing the traditional use of these medicinal plants. These three species, along with M. rigida and S. tuberosa showed a strong anti-T. vaginalis activity, which is promising for the development of new treatments for this protozoan infections.
Shauli, Mathulo Mathabiso. "Histopathology induced by a medicinal plant indigenous to South Africa that has shown in vitro anti-microbial activity against drug resistant strains of Mycobacterium tuberculosis." Thesis, Nelson Mandela Metropolitan University, 2015. http://hdl.handle.net/10948/3990.
Full textAiyegoro, Olayinka Ayobami. "Synergistic potententials and isolation of bioactive compounds from the extracts of two helichrysum species indigenous to the Eastern Cape province." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/250.
Full textButcher, Andrew C. "Amalgam ethnobotanic research centre /." Diss., Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-12012003-134830.
Full textLockwood, Devi(Devi Kailasa). "The living library : an indigenous community in the Peruvian Amazon is combating climate change, deforestation, and loss of traditional knowledge by preserving their plants in the wild." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123784.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (page 28).
Farmacia Viva Indigena, the Living Indigenous Pharmacy, is five hectares of primary forest in the Amazon preserved as an intact library of indigenous plants, many of them medicinally useful, near the river village of Paoyhan in Ucayali, Peru. The library is an indigenous climate adaptation strategy in the rainforest, and an effort to revive the Shipibo-Conibo culture of healing with medicinal plants. The pharmacy was established last year by Alianza Arkana, an NGO in Pucallpa. They have divided the land into sub-parcels, and are categorizing and archiving each of the medicinal plants contained inside. In Ucayali, the main environmental concern is deforestation. Land-use change also changes patterns of rainfall, as water is transported in the atmosphere through aerial rivers. The Living Library is an archive and repository of plants in a rainforest that is rapidly disappearing-an attempt to revitalize and preserve indigenous knowledge systems of medicinal plant life in Shipibo culture. The living library of plants in Paoyhan provides an economic alternative to deforestation. They also hope to attract ecotourism, scientists, and possibly pharmaceutical companies. Making the land useful by extracting medicines is one way of protecting it from loggers who enter legally or illegally.
by Devi Lockwood.
S.M. in Science Writing
S.M.inScienceWriting Massachusetts Institute of Technology, Department of Comparative Media Studies/Writing