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Rasanayagam, Maretta Sharima. "Inhibitory effects of ectomycorrhizal fungi on other soil fungi". Thesis, University of Kent, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332661.
Pełny tekst źródłaZheng, Weishuang [Verfasser]. "Soil stability and filamentous fungi / Weishuang Zheng". Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1088402224/34.
Pełny tekst źródłaFeeney, Deborah Siobhan. "The influence of fungi upon soil structure and soil water relations". Thesis, Abertay University, 2004. https://rke.abertay.ac.uk/en/studentTheses/2a92d2fc-b3c5-456f-8b9a-e406bd78ee84.
Pełny tekst źródłaLeifheit, Eva [Verfasser]. "Soil sustainability and arbuscular mycorrhizal fungi / Eva Leifheit". Berlin : Freie Universität Berlin, 2014. http://d-nb.info/1054636974/34.
Pełny tekst źródłaHusted, Lynn. "Low soil temperature and efficacy of ectomycorrhizal fungi". Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30930.
Pełny tekst źródłaForestry, Faculty of
Graduate
Toljander, Jonas. "Interactions between soil bacteria and arbuscular mycorrhizal fungi /". Uppsala : Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200639.pdf.
Pełny tekst źródłaWhiffen, Leonie. "Arbuscular mycorrhizal fungi and carbon sequestration in soil". Thesis, The University of Sydney, 2007. https://hdl.handle.net/2123/28114.
Pełny tekst źródłaWang, Dongwei [Verfasser]. "Trade-offs in soil filamentous fungi / Dongwei Wang". Berlin : Freie Universität Berlin, 2020. http://d-nb.info/1212435168/34.
Pełny tekst źródłaBoström, Björn. "Achieving carbon isotope mass balance in Northern forest soils, soil respiration and fungi /". Örebro : Department of Natural Sciences, Örebro University, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-2101.
Pełny tekst źródłaAsif, Mohammad. "Comparative study of production, infectivity, and effectiveness of arbuscular mycorrhizal fungi produced by soil-based and soil-less techniques /". [Campbelltown, N.S.W. : The Author], 1997. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030716.094919/index.html.
Pełny tekst źródłaPajor, Radoslaw. "Quantification of short term interactions between soil and fungi". Thesis, Abertay University, 2012. https://rke.abertay.ac.uk/en/studentTheses/1fdaf041-ca50-4c70-ba7a-1859e07a11d5.
Pełny tekst źródłaGiannakis, Nikos. "Interactions between mycophagous nematodes, mycorrhizal and other soil fungi". Thesis, University of Leeds, 1990. http://etheses.whiterose.ac.uk/778/.
Pełny tekst źródłaRiaz, Ihsan. "Bioremediation treatments for polyaromatic hydrocarbons contaminated soil". Thesis, Glasgow Caledonian University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251186.
Pełny tekst źródłaSiasou, Eleni. "Interactions among a soil-borne pathogen, mycorrhizal fungi and rhizobacteria". Thesis, University of Aberdeen, 2010. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=159205.
Pełny tekst źródłaStorer, Kate Elizabeth. "Interactions between arbuscular mycorrhizal fungi and soil greenhouse gas fluxes". Thesis, University of York, 2013. http://etheses.whiterose.ac.uk/5022/.
Pełny tekst źródłaPiotrowski, Jeffrey Scott. "Succession of arbuscular mycorrhizal fungi causes, consequences, and considerations /". CONNECT TO THIS TITLE ONLINE, 2007. http://etd.lib.umt.edu/theses/available/etd-05272008-134138/.
Pełny tekst źródłaAsif, Mohammad. "Comparative study of production, infectivity, and effectiveness of arbuscular mycorrhizal fungi produced by soil-based and soil-less techniques". Thesis, [Campbelltown, N.S.W. : The Author], 1997. http://handle.uws.edu.au:8081/1959.7/510.
Pełny tekst źródłaValentine, Lori Lisa. "The biodiversity of ectomycorrhizal fungi associated with Quercus garryana /". View full-text version online through Southern Oregon Digital Archives, 2002. http://soda.sou.edu/awdata/040226b1.pdf.
Pełny tekst źródłaIncludes bibliographical references (leaves 37-43). Also available via Internet as PDF file through Southern Oregon Digital Archives: http://soda.sou.edu. Search Bioregion Collection.
Samson, Heidi E. (Heidi Estrelita). "Psychrotolerant mucoralean fungi present in pristine mountain fynbos soil and vineyard soil from the Stellenbosch region". Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52423.
Pełny tekst źródłaENGLISH ABSTRACT: Mucoralean fungi are mostly saprotrophs that are frequently encountered in soil habitats. Using an isolation temperature of circa 25°C, other workers obtained these fungi from a wide diversity of geographical areas in southern Africa. However, it is known that psychrotolerant mucoralean fungi, able to grow at 25°C as well as at 5°C, occur in pristine Alti Mountain Grassland. Nothing is known about the diversity of these psychrotolerant soil fungi in other vegetation types of South Africa. Consequently, in this study, the psychrotolerant fungal taxa and numbers in soil from a vineyard and from pristine Mountain Fynbos were determined using an incubation temperature of 4°C and a complex isolation medium. The latter contained agar, malt extract, peptone, yeast extract, penicillin and streptomycin sulphate. Soil samples were analysed in late summer, autumn and mid-winter. It was found that, for the samples taken in late summer and autumn, the diversity of mucoralean species in the soil differed between fynbos and vineyard. In winter however, no significant difference was detected between the Shannon's diversity indices of mucoralean species in the soil samples taken from the two habitats. It was found that in both soil types, the percentage mucoralean fungi on the plates increased from summer to winter. In addition, the numbers of detectable Morlierella subgenus Morlierella on the plates were higher in winter than in late summer. The diversity of mucoralean species obtained during winter in fynbos and vineyard soil was significantly less than the diversity of these species in Alti Mountain Grassland soil. To determine if the Morlierella subgenus Morlierella isolates from the fynbos and vineyard soil, and those obtained from Alti Mountain Grassland, differ in the ability to grow at low temperatures, the radial growth rate on malt extract agar at 4°C and BOC was determined for each isolate. The results indicate that not only did seasonal changes occur in the taxa within Morlierella subgenus Morlierella, but that the isolates dominating the soil in different seasons also differed in the ability to grow at low temperatures. The percentage of isolates that had reached greater colony diameters after B days of incubation at 4°C, was higher for the isolates obtained in the cold wet month of July than for those obtained in the warmer dryer month of February. Similar results were obtained with the radial growth experiments conducted at BOC. The Morlierella subgenus Morlierella isolates obtained in winter from fynbos and vineyard soil showed less variation in low temperature growth rate than the isolates of this taxon obtained in winter from Alti Mountain Grassland soil during a previous study. This variation corresponds to the greater number (20) of Morlierella subgenus Morlierella species found in the grassland soil. Altogether only seven species of this subgenus was detected during the present study in the fynbos and vineyard soil samples. It was speculated that this difference in diversity between the fynbos and vineyard isolates, and the grassland isolates obtained in a previous study, might have been as a result of differences in the habitat or the enumeration methods used. The phylogenetic relationship between different psychrotolerant isolates of Morlierella subgenus Morlierella originating from the soil of the fynbos, vineyard and Alti Mountain Grassland, was subsequently determine through comparison of ITS regions, within ribosomal RNA repeats. Consequently, 45 psychrotolerant Morlierella subgenus Morlierella isolates originating from the three soil habitats was compared on the basis ITS 1 nucleotide sequence composition and radial growth rate at 4°C. Phylogenetic analyses showed that the isolates could be grouped into two clusters correlating with the ability to grow at low temperatures. Each cluster was further subdivided into two subgroups. It was found that except for one subgroup and the reference strain occurring in another subgroup, all the subgroups contain isolates originating from a single soil habitat. Therefore, the ITS 1 sequence of these fungi seems to indicate the original habitat and ability to grow at low temperatures. This correlation of the ITS sequence with the ecological habitat of a fungus has also been observed by other workers for other fungal groups.
AFRIKAANSE OPSOMMING: Mucoraliese fungi is meestal saprotrofe wat dikwels in grondhabitatte aangetref word. Deur gebruik te maak van 'n isolasietemperatuur van circa 25°C, het ander werkers dié fungi van 'n wye verskeidenheid geografiese gebiede in suidelike Afrika verkry. Dit is egter bekend dat die psigrotolerante mucoraliese fungi, wat in staat is om by 2SoC en ook by SaC te groei, in ongeskonde Alti Berg-Grasland voorkom. Niks is egter bekend oor die diversiteit van dié psigrotolerante grondfungi in ander veldtipes van suidelike Afrika nie. Die psigrotolerante fungustaksa en -getalle in grond van 'n wingerd en van ongeskonde Berg Fynbos is gevolglik in dié studie bepaal deur gebruik te maak van 'n inkubasietemperatuur van 4"C en 'n komplekse isolasiemedium. Laasgenoemde het agar, moutekstrak, peptoon, gisekstrak, penisillien en streptomisiensulfaat bevat. Grondmonsters is in die laatsomer, herfs en midwinter geanaliseer. Daar is 'n verskil gevind tussen die diversiteit van die mucoraliese spesies in die grond van fynbos en dié van wingerd in die monsters wat in die laatsomer en midwinter geneem is. In die winter is daar egter geen beduidende verskil gevind tussen die Shannon diversiteitsindekse van mucoraliese spesies in die grondmonsters wat uit die twee habitatte getrek is nie. In albei grondtipes is daar gevind dat die persentasie mucoraliese fungi op die plate toegeneem het van somer tot winter. Daarby was die aantal waarneembare Morlierella subgenus Morlierella op die plate meer in die winter as in die laatsomer. Die diversiteit van mucoraliese spesies wat in die winter uit fynbos- en wingerdgrond verkry is, was beduidend minder as die diversiteit van dié spesies in Alti Berg-Grasland grond. Om te bepaal of die Morlierella subgenus Morlierella isolate van die fynbos- en wingerdgrond en dié van Alti Berg-Grasland van mekaar verskil ten opsigte van hul vermoë om by lae temperature te groei, is die radiale groeitempo op moutekstrak by 4"C en aoc vir elke isolaat bepaal. Die resultate dui aan dat daar nie alleen seisoenale veranderinge in die taksa binne Morlierella subgenus Morlierella voorkom nie, maar dat die isolate wat tydens verskillende seisoene uit die grond verkry is, ook ten opsigte van hul groeivermoë by lae temperature van mekaar verskil. Die persentasie isolate wat groter kolonie diameters bereik het ná B dae inkubasie by 4°C, was hoër vir die isolate van die koue, nat Juliemaand as vir dié wat in die warmer en droër Februariemaand verkry is. Soortgelyke resultate is verkry met radiale groei-eksperimente wat by BOC gedoen is. Die MortierelIa subgenus MortierelIa isolate wat in die winter uit fynbos- en wingerdgrond verkry is, het In kleiner variasie in hul groeitempo by lae temperature getoon as die isolate in dié takson wat tydens 'n vorige studie in die winter uit Alti Berg-Grasland grond verkry is. Dié variasie stem ooreen met die groter aantal (20) MortierelIa subgenus MortierelIa spesies wat in die graslandgrond gevind is. Slegs sewe spesies van dié subgenus is gedurende die huidige studie in die fynbos- en wingerdgrondmonsters waargeneem. Daar is gespekuleer dat dié verskil in diversiteit tussen die fynbos- en wingerdisolate en die graslandisolate van die vorige studie die gevolg mag wees van verskille tussen die habitat of die enumerasiemetodes wat gebruik is. Die filogenetiese verwantskap tussen verskillende psigrotolerante isolate van MortierelIa subgenus MortierelIa uit die grond van die fynbos, wingerd en Alti Berg-Grasland, is vervolgens bepaal deur 'n vergelyking van interne getranskribeerde spasieerder (ITS) areas, binne ribosomale RNS herhalings. Daar is gevolglik 45 psigrotolerante MortierelIa subgenus MortierelIa isolate uit die drie grondhabitatte met mekaar vergelyk op grond van die basis ITS 1 nukleotied opeenvolgingsamestelling en radiale groeitempo by 4°C. Filogenetiese analises het die isolate in twee groepe verdeel op grond van hul vermoë om by lae temperature te groei. Elke groep is verder in twee subgroepe verdeel. Daar is gevind dat behalwe vir een subgroep en die verwysingstam wat in 'n ander subgroep voorgekom het, elkeen van die subgroepe bestaan het uit isolate wat van 'n enkele grond habitat verkry is. Dit wil dus voorkom of die ITS 1 opeenvolging van dié fungi 'n aanduiding gee van die oorspronklike habitat en die vermoë om by lae temperature te groei. Dié korrelasie tussen die ITS opeenvolging en die ekologiese habitat van 'n fungus is ook deur ander werkers vir ander fungusgroepe waargeneem.
Mauchline, Tim H. "Studies into the molecular ecology of the nematophagous fungus Verticillium chlamydosporium". Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270928.
Pełny tekst źródłaWeinstein, Richard Neil. "Ecophysiology of fungi isolated from soil in an Antarctic fellfield ecosystem". Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624489.
Pełny tekst źródłaMulligan, Deborah F. C. "Detection of mycoparasites in soil and their effects on other fungi". Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/12699.
Pełny tekst źródłaPrapamon, Seeprasert. "The Influence of Soil Fungi on the Sorption of Cesium and Strontium within Organic Layer of Soil". 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/202702.
Pełny tekst źródłaSulistyowati, Emy. "Development of molecular probes to distinguish vesicular-arbuscular mycorrhizal fungi". Title page, Summary and Contents only, 1995. http://web4.library.adelaide.edu.au/theses/09A/09as949.pdf.
Pełny tekst źródłaCornelissen, Stephanie. "The impact of copper on filamentous fungi and yeasts present in soil". Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16290.
Pełny tekst źródłaENGLISH ABSTRACT: Numerous workers studied the impact of pollutants and agricultural chemicals, containing heavy metals such as copper (Cu), on soil microbes. It was found that elevated soil Cu levels do have a detrimental effect on soil bacterial populations however the filamentous fungi seemed to be less affected. Most of these studies were conducted in soils containing already relatively high Cu levels and the effect of this heavy metal on the nonfilamentous fungi (i.e. yeasts) was never investigated. The aim of this study was therefore to determine the impact of elevated Cu levels on filamentous fungi and yeasts occurring in soils containing relatively low natural Cu levels. A synthetic selective medium containing glucose as carbon source, thymine as nitrogen source, vitamins, minerals and chloramphenicol as anti-bacterial agent (TMV-agar), was used to enumerate ascomycetous and basidiomycetous Cu resistant yeasts in a sample of virgin soil containing ~ 2ppm Cu. Media that were used to enumerate Cu resistant filamentous fungi were malt extract agar, malt extract agar with streptomycin sulfate, maltyeast- extract-peptone agar with chloramphenicol and streptomycin sulfate, benomyl–dichloran-streptomycin medium for the enumeration of hymenomycetous fungi and two selective media for the isolation of mucoralean fungi. Cu resistant fungi able to grow on all of the above mentioned solid media supplemented with 32 ppm Cu occurred in the soil sample. To obtain an indication of the level of Cu tolerance of fungi present in this soil sample, a number of fungal isolates were screened for the ability to grow on a series of agar plates, prepared from glucose-glutamate-yeast extract agar, containing increasing concentrations of Cu. It was found that filamentous fungi and yeasts that were able to grow on this agar medium containing up to 100 ppm Cu were present in the soil. A series of soil microcosms was subsequently prepared from the soil sample by experimentally contaminating the soil with increasing amounts of copper oxychloride, were after fungal populations in the microcosms, including Cu resistant fungi, were monitored using plate counts. At the end of the incubation period, after 245 days, fungal biomass in the microcosms was compared by determining the concentrations of the fungal sterol, ergosterol, inthe soil. Generally, Cu had little impact on the numbers of filamentous fungal colony forming units on the plates, as well as on the ergosterol content of the soil. The numbers of filamentous fungi in the soil, including the Mucorales and hymenomycetes, seemed to be less affected by the addition of copper oxychloride than the numbers of soil yeasts able to grow on TMV-agar. The focus of the next chapter was on the response of yeasts in different soils to elevated levels of Cu in the soil. TMV-agar was used to enumerate yeasts in soil microcosms prepared from four different soil samples, which were experimentally treated with copper oxychloride resulting in Cu concentrations of up to 1000 ppm. The selective medium supplemented with 32 ppm Cu was used to enumerate Cu resistant yeasts in the microcosms. The results showed that the addition of Cu at concentrations ≥ ~1000 ppm did not have a significant effect on total yeast numbers in the soil. Furthermore, it was found that Cu resistant yeasts were present in all the soil samples regardless of the amount of Cu that the soil was challenged with. At the end of the incubation period, yeasts in the microcosms with zero and ~1000 ppm additional Cu were enumerated, isolated and identified using sequence analyses of the D1/D2 600-650bp region of the large subunit of ribosomal DNA. Hymenomycetous species dominated in the control soil, while higher numbers of the urediniomycetous species were found in the soil that received Cu. These observations suggest that urediniomycetous yeasts may play an important role in re-establishing overall microbial activity in soils following perturbations such as the addition of Cu-based fungicides.
AFRIKAANSE OPSOMMING: Vele navorsers het al die impak van besoedelingstowwe en landbouchemikalieë wat swaarmetale soos koper (Cu) bevat, op grond-mikrobes bestudeer. Dit is gevind dat verhoogde Cu vlakke ‘n nadelige effek het op grond-bakteriese populasies, maar dat die filamentagtige fungi geneig is om minder geaffekteer te word. Meeste van hierdie studies is gedoen met gronde wat alreeds relatief hoë Cu vlakke bevat het en die effek van hierdie swaarmetaal op die nie-filamentagtige fungi (d.i. giste) is nooit ondersoek nie. Die doel van hierdie studie was dus om die impak van verhoogde Cu vlakke op filamentagtige fungi en giste in gronde, wat natuurlike lae vlakke van Cu bevat, te bepaal. ‘n Sintetiese selektiewe medium wat glukose as koolstofbron, timien as stikstofbron, vitamiene, minerale asook chloramfenikol as anti-bakteriese agent bevat (TMV-agar), is gebruik om askomisete en basidiomisete Cu weerstandbiedende giste in ‘n monster ongeskonde grond, bevattende ~ 2dpm Cu, te tel. Media wat gebruik is om Cu weerstandbiedende filamentagtige fungi te tel, was mout-ekstrak agar, moutekstrak agar met streptomisiensulfaat, benomiel-dichloran-streptomisien medium vir die tel van hiemenomiseetagtige fungi en twee media vir die isolasie van mukoraliese fungi. Cu-weerstandbiedende fungi wat op al die bogenoemde media, aangevul met 32 dpm Cu, kon groei, het in die grondmonster voorgekom. Om die mate van Cu-weerstandbiedendheid van fungi wat in die grondmonster voorkom, te bepaal, is ‘n getal fungus-isolate op agarplate, voorberei met glukose-glutamaat-gis ekstrak agar, bevattende verhoogde konsentrasies Cu, nagegaan. Daar is gevind dat daar filamentagtige fungi en giste in die grond voorkom wat die vermoë het om op media bevattende 100 dpm Cu te groei. ‘n Reeks grond mikrokosmosse is dus voorberei vanaf die grondmonster deur om dit eksperimenteel te kontamineer met verhoogde hoeveelhede koper oksichloried, waarna die fungus-populasies asook die Cu-weerstandbiedende fungi in die mikrokosmos gemoniteer is deur middel van plaattellings. Aan die einde van die inkubasie periode, 245 dae, is die fungus biomassa in al die mikrokosmosse bereken deur die konsentrasie van die fungus sterool ergosterool te bepaal en dit met mekaar te vergelyk. Oor die algemeen het Cu min impak ten opsigte van diegetal filamentagtige fungi kolonie vormende eenhede die plate, asook op die ergosterool inhoud van die grond gehad. Dit wil voorkom of die getal filamentagtige fungi in die grond, insluitende die Mucorales en die hymenomisete, minder geaffekteer is deur die toediening van koperoksichloried as die aantal grondgiste wat op die TMV-agar kan groei. Die fokus van die volgende hoofstuk was dus op die reaksie wat giste in verskillende grondtipes gehad het op verhoogde Cu in die grond. TMV-agar is gebruik om die getal giste te bepaal in die grond mikrokosmosse van die vier verskillende grondmonsters, wat voorberei is deur om dit eksperimenteel met koper oksikloried te kontamineer tot en met Cu konsentrasies van 1000 dpm. Die selektiewe medium wat gesupplementeer is met 32 dpm Cu, is gebruik om Cu weerstandbiedende giste in die mikrokosmosse te bepaal. Die resultate toon dat die toevoeging van Cu by konsentrasies ≥ ~1000 dpm nie enige beduidende effek op die totale gis getalle gehad het nie. Daar is ook gevind dat daar Cu weerstandbiedende giste in die grond monsters voorkom gekom het ten spyte van die hoeveelheid Cu wat tot die grond toegevoeg is. Aan die einde van die inkubasie periode is die giste wat die die mikrokosmosse bevattende nul en ~1000 dpm Cu getel, geïsoleer en geïdentifiseer deur gebruik te maak van DNA volgorde bepaling van die D1/D2 600-650 bp areas geleë in die groter subeenheid van die ribosonale DNA. Hymenomisete spesies het in die grond kontrole gedomineer, terwyl hoër getalle uredinomisete spesies in die grond met addisionele Cu gevind is. Die resultate dui daarop dat uredinomisete giste dalk ‘n belangrike rol kan speel in die hervestiging van die oorwegende mikrobiese aktiwiteit in grond na skoktoestande soos die aanwending van Cu-gebaseerde fungisiede.
Fidelibus, Matthew, Chris Martin i Jean Stutz. "Contributions of Beneficial Soil Fungi to Drought Stress Tolerance of Young Citrus". College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/220566.
Pełny tekst źródłaIke-Izundu, Nnenna Esther. "Interaction between arbuscular mycorrhizal fungi and soil microbial populations in the rhizosphere". Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1004021.
Pełny tekst źródłaHu, Ping. "Impact of mycorrhizal fungi and nematodes on growth of Andropogon gerardii Vit., soil microbial components and soil aggregation". Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/1093.
Pełny tekst źródłaRosling, Anna. "Responses of ectomycorrhizal fungi to mineral substrates /". Uppsala : Dept. of Forest Mycology and Pathology, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/s296.pdf.
Pełny tekst źródłaMerryweather, James. "Function and diversity of the arbuscular mycorrhiza in Bluebell, Hyacinthoides non-scripta (L.) Chouard ex Rothm". Thesis, University of York, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387544.
Pełny tekst źródłaBastias, Brigitte A. "The influence of repeated prescribed burning and forest conversion on soil fungal communities". Thesis, View thesis, 2007. http://handle.uws.edu.au:8081/1959.7/21101.
Pełny tekst źródłaAsif, Mohammad, of Western Sydney Macarthur University i Faculty of Business and Technology. "Comparative study of production, infectivity, and effectiveness of arbuscular mycorrhizal fungi produced by soil-based and soil-less techniques". THESIS_FBT_XXX_Asif_M.xml, 1997. http://handle.uws.edu.au:8081/1959.7/510.
Pełny tekst źródłaDoctor of Philosophy (PhD)
Sosa, Hernández Moisés A. [Verfasser]. "Vertical distribution of arbuscular mycorrhizal fungi in agricultural soil / Moisés A. Sosa Hernández". Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1177152614/34.
Pełny tekst źródłaSosa, Hernández Moisés Aarón [Verfasser]. "Vertical distribution of arbuscular mycorrhizal fungi in agricultural soil / Moisés A. Sosa Hernández". Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1177152614/34.
Pełny tekst źródłaKurnik, Betsy S. "Diversity of ectomycorrhizal fungi on two reclaimed surface mines differing in soil properties". Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1698.
Pełny tekst źródłaTitle from document title page. Document formatted into pages; contains viii, 72 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 61-64).
Ullah, Mohammad Rahmat. "Drought Effects on Soil Carbon and Nitrogen Cycling: Role of Fungi and Bacteria". Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25855.
Pełny tekst źródłaFrank, Jonathan L. "Complex mutualism in an Oregon white oak woodland : hypogeous fungi, mycorrhizas and small mammal mycophagy associated with Quercus garryana /". View full-text version online through Southern Oregon Digital Archives, 2005. http://soda.sou.edu/awdata/050801a1.pdf.
Pełny tekst źródła"A thesis submitted to ... Southern Oregon University in partial fulfillment of the requirements for the degree of Master of Science ..." Includes bibliographical references (leaves 101-109). Also available via Internet as PDF file through Southern Oregon Digital Archives: http://soda.sou.edu. Search Bioregion Collection.
Schneider, Katja. "Feeding biology and diversity of oribatid mites (Oribatida, Acari)". Phd thesis, Connect to this title online, 2005. http://elib.tu-darmstadt.de/diss/000585/.
Pełny tekst źródłaBorràs, Camps Eduard. "Evaluation of Trametes versicolor ability to bioremediate Polycyclic Aromatic Hydrocarbons (PAHs) in different matrices". Doctoral thesis, Universitat Autònoma de Barcelona, 2012. http://hdl.handle.net/10803/83950.
Pełny tekst źródłaComo consecuencia de las actividades humanas, la contaminación debida a productos químicos liberados en el medio se ha convertido en un problema global, siendo una amenaza real para la actividad y la salud de los seres vivos. La contaminación puede afectar a cualquier compartimento del ecosistema. Concretamente, los hidrocarburos derivados del petróleo son contaminantes que afectan de manera particular al suelo, entre los cuales destacan los hidrocarburos policíclicos aromáticos (HPAs). Actualmente existen diversas técnicas para la restauración de emplazamientos contaminados por estos compuestos. Cabe destacar que en los últimos años la comunidad científica ha centrado especialmente los esfuerzos en el campo de la micorremediación (área de conocimiento donde se enmarca la presente tesis) dado que se trata de una técnica ambientalmente respetuosa. El trabajo presenta los resultados de las investigaciones previas al desarrollo de un tratamiento de bioremediación de suelos contaminados por hidrocarburos policíclicos aromáticos mediante el hongo ligninolítico Trametes versicolor. Los resultados de la mencionada investigación se presentan en tres apartados diferenciados. El primero se centra en la producción de biomasa del hongo para posteriores aplicaciones en procesos de bioremediación. Se divide en dos secciones: • La primera se basa en la producción de biomasa en cultivo sumergido. Los experimentos se centraron en formular un medio de cultivo definido de bajo coste que permitiera obtener niveles elevados de biomasa, en la morfología deseada (pellets). El reactor fluidizado por pulsos de aire con control de pH resultó ser el más adecuado. La producción se escaló a un bioreactor de 10 litros. • La segunda sección analiza la colonización del hongo sobre soportes lignocelulósicos provenientes de residuos agrícolas para posterior aplicación en el suelo. La selección de los mejores sustratos para la colonización se basó en el nivel de biomasa (ergosterol), la producción de lacasa y la capacidad de degradar naproxeno en 24 horas. Se demostró que el hongo era capaz de colonizar el suelo tanto en condiciones estériles como no estériles manteniendo, en todo caso, la capacidad degradativa. El segundo apartado se centra en la degradación de hidrocarburos policíclicos aromáticos por el hongo. Se divide en tres secciones: • La primera se basa en la selección de un surfactante para la degradación de HPAs en medio líquido, siendo el surfactante no iónico Tween 80 aquel que dio mejores resultados. Se pudo demostrar la capacidad degradativa de diversos HPAs en medio líquido; tanto en experimentos por separado como en mezclas. Asimismo, también se demostró que en las condiciones de cultivo la enzima lacasa podía degradar algunos de los compuestos. • La segunda sección hace referencia a la identificación de productos intermediarios de degradación de HPAs. También se estudió la capacidad de degradación de estos intermediarios por parte del hongo. • En la tercera sección se probaron diferentes sistemas de degradación en suelos, donde el bioslurry resultó el más efectivo en términos de eficacia de degradación. Se pudo comprobar que en las biopilas aireadas el hongo tuvo problemas derivados del rango termofílico alcanzado. El último apartado se basa en la degradación de los HPAs de la creosota. Se divide en dos secciones: • La primera se centra en la degradación de los HPAs de la fracción aromática de la creosota. Se estudiaron diferentes sistemas y se determinó que el hongo era más eficiente en degradación en las biopilas. En cultivos sumergidos, medio líquido y slurry, el hongo era efectivo en la degradación de HPAs de bajo peso molecular pero no en aquellos de alto peso molecular. Se observó el efecto inhibitorio sobre Trametes versicolor tanto de los compuestos adicionales añadidos junto con la creosota como al aumentar la concentración de HPAs. • La segunda sección es fruto de la colaboración con el Laboratorio de Biotecnología Ambiental del Instituto de Microbiología de la Academia de las Ciencias de la República Checa en Praga. Se estudió el efecto de la interacción del hongo con la población microbiana del suelo durante procesos de bioremediación de HPAs en suelos. El trabajo experimental se ha llevado a cabo en el "Grupo de degradación de contaminantes industriales y valorización de residuos" del Departamento de Ingeniería Química de la UAB. El objetivo general de investigación del grupo es el desarrollo de procesos biotecnológicos para degradar compuestos xenobióticos difícilmente degradables mediante tratamientos convencionales.
As a result of human activities pollution aroused as a global concern due to improper release of chemicals into the environment. Contamination represents a real threat to humans and can affect any ecosystem compartment. Petroleum hydrocarbons affect typically soil, including polycyclic aromatic hydrocarbons (PAHs). Several conventional clean-up techniques are available for site restoration, including bioremediation. Mycoremediation, attained interest in the last decades as it is assumed to be an environmental-friendly technique. This work shows the results of the basic research previous to the development of a polycyclic aromatic hydrocarbons polluted soil bioremediation treatment by means of the white rot fungus Trametes versicolor. The results of the mentioned research are presented in three differentiated sections. The first section focuses on the fungal biomass production for posterior applications in bioremediation processes. It is divided into two subsections: • The first part focuses on biomass production of in submerged cultures. The experiments were aimed at formulating a low-cost defined medium to obtain high amounts of biomass, in the preferred morphology (pellets). The air-pulsed fluidized bioreactors equipped with pH control were the most appropriate. The production was scaled-up to a 10 liters bioreactor. • The second part analyzes the fungal colonization of lignocellulosic supports for further application in soil. The selection of the optimal substrate for colonization based on active biomass amounts, laccase production and the capacity to degrade naproxene in 24 hours. It was demonstrated that the fungus was capable of colonizing soil both under sterile and non-sterile conditions maintaining, in any case, the degradative capacity. The second section focuses on the fungal ability to degrade polycyclic aromatic hydrocarbons. It is ddivided into three subsections: • The first part focuses on the selection of an optimal surfactant for PAHs degradation in liquid medium, obtaining the best results with the non-ionic surfactant Tween 80. The degradation of several PAHs by T. versicolor in liquid medium was demonstrated; both in individual-PAHs experiment as well as in PAHs-mixtures. Likewise, it was also demonstrated that under culture conditions laccase might degrade some of the studied compounds. • The second section includes the identification of PAHs metabolites arising from degradation. The fungal degradation capacity of these intermediates was also examined. • In the third section different degradation systems of were tested for soil treatment, the bioslurry resulted as the most effective in terms of degradation efficiency. It was checked out that in aerated biopiles, the fungus had problems derived from attaining termophilic ranges. The last section deals with the creosote-PAHs degradation. It is divided into two subsections: • The first part focuses on the fungal PAHs-degradation of the creosote aromatic fraction. Different systems were studied and it was determined that the fungus was more efficient at degrading PAHs in biopiles approach. In submerged cultures, liquid medium and slurry, the fungus was effective at degrading low-molecular-weight PAHs but not those of high-molecularweight. It was also observed inhibitory effects on Trametes due to the additional compounds present in creosote as well as when increasing the total PAHs concentration. • The second section is a result of the collaboration with the Laboratory of Environmental Biotechnology in the Institute of Microbiology, which belongs to the Academy of Sciences of the Czech Republic (Prague). The effect on PAHs removal during the interaction between soil microbial population and white-rot fungi during soil bioremediation processes was studied. The experiments have been carried out in the "Group of degradation of industrial pollutants and valuation of waste" from the Department of Chemical Engineering in the UAB. The main research motivation of the group is to develop specific biotechnological processes to degrade xenobiotic compounds that are scarcely degraded by conventional treatments.
Dickinson, J. M. "The chemistry of fungal biocontrol agents". Thesis, University of Sussex, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267277.
Pełny tekst źródłaHollstein, R. W. M. "The dependence of mycorrhrizae in Sitka spruce roots, on the availability of phosphorus in serpentine and basaltic soils". Thesis, University of Aberdeen, 1986. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU006854.
Pełny tekst źródłaBastias, Brigitte A. "The influence of repeated prescribed burning and forest conversion on soil fungal communities". View thesis, 2007. http://handle.uws.edu.au:8081/1959.7/21101.
Pełny tekst źródłaA thesis submitted to the University of Western Sydney, College of Health and Science, Centre for Plant and Food Science, in fulfilment of the requirements for the degree of Doctor of Philosophy. Includes bibliographical references.
Al, Fassi Fahad Abdulrahman. "The microbial ecology of heathland soil with special reference to factors affecting microbial biomass and activity". Thesis, University of Sheffield, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318137.
Pełny tekst źródłaSala, Valéria Marino Rodrigues. "Atividade microbiana do solo e a interação de diazotróficos endofíticos e fungos micorrízicos arbusculares na cultura do trigo". Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/11/11138/tde-22082002-140642/.
Pełny tekst źródłaThe research on diazotrophic bacteria associated to wheat has demonstrated the need to associate efficient bacteria to N-responsive genotypes, which would be more benefited from this association. A field experiment was carried out in Mococa, state of São Paulo-Brazil, with 3 genotypes of wheat (IAC-24, ITD-19 and IAC-355) under 3 nitrogen doses (0, 60 e 120 kg ha -1 ). The occurrence of diazotrophic bacteria was evaluated in three media, namely, NFb semi-specific for Azospirillum spp., JNFb semi-specific for Herbaspirillum spp., and LGI-P semi-specific for Gluconacetobacter diazotrophicus, using surface-sterilized roots. Regardless the nitrogen dose, the population of diazotrophic bacteria established poorly in the genotype IAC-355, but the infection increased with the addition of nitrogen for the same genotype, proving the influence of the host genotype for its association with these bacteria. Azospirillum spp. or Herbaspirillum spp. could not be isolated from the surface-sterilized roots of IAC-355. In the field experiment G. diazotrophicus was not found in any of the wheat-genotype roots. It was obtained 12 Herbaspirillum spp. isolates and 8 Azospirillum spp isolates. These strains were tested under gnotobiotic conditions, using the genotype from which they had been originally isolated. Inoculated ITD-19 plants showed an increase in root length, even though, only one strain showed a significant increase on shoot N accumulation. In the genotype IAC-355 mycorrhizal colonization was higher, proving the influence of the plant genotype. Mycorrhizal colonization showed significant correlation to shoot dry matter, shoot N and shoot P concentration and accumulation, as well as to the grain yield. In the absence of added N, the activity of microbial biomass was affected. The correlation between the qCO2 and biomass C-to-N ratio, showed that in absence of N, soil-C loss under IAC-24 cultivation, but a greater efficiency in the use of the soil-C by the microorganisms under IAC-355 cultivation. The populations of nitrifying bacteria increased with N addition, probably due to the N-rich substrate availability. The nitrifying bacteria showed significant correlation to shoot dry matter, shoot N concentration and accumulation, as well as to grain yield. There was no benefit from the AMF-diazotrophic bacteria co-inoculation on wheat plants. The specificity of AMF-diazotrophic bacteria interaction was demonstrated, it was confirmed that AMF indeed is a transmitting agent of endophytic diazotrophic bacteria, Acaullospora caused higher endophytic-bacteria root colonization. Plants inoculated with single strain doubled shoot dry matter, shoot N and P concentration and accumulation as compared to the control. Plant-bacteria interaction specificity demonstrates the possibility of getting benefits from this association by exploring both bacterial strains and plant genotypes from the same location.
Meysami, Parand. "Feasibility study of fungal bioremediation of a flare pit soil using white rot fungi". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ65004.pdf.
Pełny tekst źródłaMaighel, Mahmood [Verfasser]. "Effect of Arbuscular mycorrhizal fungi and biochar on soil seed bank viability / Mahmood Maighel". Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1117028453/34.
Pełny tekst źródłaDursun, Sukru. "The effects of sulphur pollution on soil fungi and decomposition of tree leaf litters". Thesis, Cardiff University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321745.
Pełny tekst źródłaWest, Lee. "Effects of Soil Fungi on Tree Seedling Establishment in a Southeastern Coastal Plain Forest". Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/46180.
Pełny tekst źródłaMaster of Science
Kelly, Charlene N. "The diversity of arbuscular mycorrhizal fungi functional and ecological responses to stressful soil conditions /". Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3374.
Pełny tekst źródłaTitle from document title page. Document formatted into pages; contains vii, 57 p. : ill. Vita. Includes abstract. Includes bibliographical references.
Timling, Ina. "Peeking through a frosty window| Molecular insights into the communities of Arctic soil fungi". Thesis, University of Alaska Fairbanks, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3607060.
Pełny tekst źródłaFungi are thought to be one of the most diverse groups of organisms in the Arctic. They drive mineral and energy cycles and influence the occurrence of other organisms as mutualists (mycorrhizae, endophytes, lichens), decomposers and pathogens. Nevertheless, information on fungal biodiversity and distribution patterns in relation to environments across the Arctic is still sparse. Molecular methods were used to examine the diversity and community structures of ectomycorrhizal fungi (EMF) associated with two principal arctic host plants, Salix arctica and Dryas integrifolia, as well as total soil fungal communities of adjacent disturbed and undisturbed areas of patterned-ground features across the five bioclimatic subzones (A-E) of the North American Arctic. Key findings include the following: (1) More diverse fungal communities had been observed than previously known. These communities encompass nearly all fungal phyla and included all fungal guilds. However, a few species-rich fungal families dominated these fungal communities. (2) Surprisingly, species richness did not decline with latitude. (3) The most abundant fungal taxa were widely distributed in and beyond the Arctic. Yet root (EMF) and soil fungal communities showed niche preferences in regard to bioclimatic subzones. Furthermore, disturbed and undisturbed patterned ground features harbored different soil fungal communities with the exception of the coldest subzone A. In contrast, EMF community composition was not affected by host plant identity. (4) Fungal communities in the warmest subzone E were distinct from the other arctic subzones and the majority of taxa matched fungi from the boreal forest. (5) Key drivers of fungal community and guild composition along the bioclimatic gradient included regional climate, pH as well as vegetation composition and productivity across the subzones. At the local scale of patterned-ground features, fungal communities were correlated with vegetation composition and microclimate. With a warming climate, I would expect an enhanced colonization of patterned-ground features by vascular plants that would then affect fungal community structure not only at the species level, but also at the level of fungal guilds. In particular I would expect increases in fungi that are symbiotic with plants and a northward shift of both plant and fungal taxa.