Academic literature on the topic 'Santalum spp'

A number of essential oils are currently in use as aromatherapy agents to relieve anxiety, stress, and depression. Popular anxiolytic oils include lavender (Lavandula angustifolia), rose (Rosa damascena), orange (Citrus sinensis), bergamot (Citrus aurantium), lemon (Citrus limon), sandalwood (Santalum album), clary sage (Salvia sclarea), Roman chamomile (Anthemis nobilis), and rose-scented geranium (Pelargonium spp.). This review discusses the chemical constituents and CNS effects of these aromatherapeutic essential oils, as well as recent studies on additional essential oils with anxiolytic activities.

Four surveys which gathered information from rural communities on useful tree species in Vanuatu have been reviewed and summarized. The surveys were undertaken from 1990 to 1993 and concentrated on species used for fuelwood and local construction. One survey also reported tree species useful for other purposes, such as fruit and nuts, edible foliage and customary uses. There were regional differences in species choices that could be related to the Northern, Central and Southern regions of the country. Popular fuelwood species included Macaranga spp., Hibiscus tiliaceus, Kleinhovia hospita, Dysoxylon spp. and the introduced Leucaena leucocephala. In general, people did not perceive any shortage of fuelwood. There were differences in preferences for fuelwood, depending on whether wood was required for open-fire pot cooking, open-fire roasting, or laplap (a kind of earth oven). Popular species for ground poles included Hibiscus tiliaceus, Flueggia flexuosa, Macaranga spp., Pterocarpus indicus, Bischofia javanica and lntsia bijuga, with some variations in preference between regions. Preferred species for aerial timbers for house construction included Macaranga spp., Flueggia flexuosa, Ficus spp., Kleinhovia hospita and Alphitonia zizyphoides. Species providing commercial timbers, such as Endospermum medullosum, Santalum austro-caledonicum and lntsia bijuga, are valued and are being planted, or wildlings cared for, on-farm. Important fruit and nut trees included Barringtonia edulis, Canarium spp., Syzygium malaccense, Pometia pinnata, lnocarpus fagifer, Burckella obovata and Dracontomelon vitiense. Tree species having multiple importance in customary use, such as Hibiscus tiliaceus, Macaranga spp., lntsia bijuga, Casuarina equisetifolia, Flueggia flexuosa, Kleinhovia hospita, Leucaena leucocephala, Barringtonia edulis and Acacia spp., are ranked highly.

The Australian native edible plant industry is rapidly expanding. We provide a review of the horticultural research that has been carried out on the top 14 commercially significant Australian native edible plants; Acacia spp. Miller (wattle), Acronychia acidula F.Muell. (lemon aspen), Backhousia citriodora F.Muell. (lemon myrtle), Eremocitrus glauca (Lindl.) Burkill (desert lime) and Microcitrus spp. Swingle (native lime), Hibiscus heterophyllus Vent. and Hibiscus sabdariffa L. (rosella), Kunzea pomifera F.Muell. (muntries), Podocarpus elatus R.Br. ex Endl. (Illawarra plum), Prostanthera spp. La Billardiere (native mint), Santalum acuminatum R.Br. (quandong), Solanum centrale Black (bush tomato), Syzygium leuhmannii F.Muell. (riberry), Tasmannia spp. R.Br. (native pepper), Terminalia ferdinandiana (= T. latipes Benth. subsp. psilocarpa Pedley) (kakadu plum) and Tetragonia tetragonioides (Pallas) Kuntze (warrigal greens). The research on most of these species has focused on propagation, breeding, cultivation, nutritional value and the isolation of natural products. On none of the species has research been completed in all these areas, and three species have no research published on them. We describe horticultural research on two other commercial species, Backhousia anisata Vickery (aniseed myrtle) and Davidsonia pruriens F.Muell. var. pruriens and var. jerseyana (Davidson’s plum), and one species with commercial potential, Pringlea antiscorbutica R.Br. ex Hook.f. (kerguelen cabbage). We identify areas that require further research and issues of concern, such as indigenous intellectual property rights and environmental implications.

An inventory to prepare the checklist of angiosperm species in the lateritic hillocks of northern Kerala was conducted in five sampling sites during April 2013–March 2015. In total, we recorded 364 genera with 535 species, of which 334 are native and 201 are non-native. Native species were represented in 102 families, namely, Poaceae (28), Fabaceae (25), Acanthaceae (22), Rubiaceae (17) Euphorbiaceae (14), Commelinaceae (11), Phyllanthaceae (7), etc., whereas, non-native species were represented in 99 families. Among the native species herbs are the predominant habit with 147 species (44%). Out of the 72 endemic species, three taxa namely, Syzygium travancoricum, Santalum album and Hopea ponga are red listed species documented from the study area. Twenty-seven invasive species were also recorded and major threats to the laterite ecosystems are by Lantana camara, Mikania micrantha, Pennisetum polystachyon, Ipomoea spp., and Senna spp. Most part of the laterite has been converted to plantations, building sites and mining sites. The indiscriminate mining for laterite, soil and demolishing the hillocks have severely threatened the very existence of the flora.

Staphylococcus spp. is not only a commensal bacteria but also a major human pathogen that causes a wide range of clinical infections. Recent evidence suggests that Staphylococcus has the ability to colonize the reproductive system and to affect its structure and functions. The objective of this study was to determine the chemical properties and antibacterial effects of select essential oils (EOs): Amyris balsamifera L., Boswellia carterii Birdw., Canarium luzonicum (Blume) A. Gray, Cinnamomum camphora (L.) J. Presl., Cinnamomum camphora var. linaloolifera Y. Fuita, Citrus x aurantium L., Gaultheria procumbens L., Litsea cubeba (Lour.) Pers., Melaleuca ericifolia Smith., Melaleuca leucadendra L., Pogostemon cablin (Blanco) Benth., Citrus limon (L.) Osbeck, Santalum album L., and Vetiveria zizanoides (L.) Roberty against 50 Staphylococcus spp. cultures isolated from human semen, specifically Staphylococcus aureus, S. capiti, S. epidermidis, S. haemoliticus, and S. hominis. The disc diffusion and broth microdilution methods were used to assess the antimicrobial potential and to determine the minimum inhibitory concentration (MIC) of the selected EOs. The best anti-Staphylococcus activities were found with both methods for the essential oils of C. luzonicum (Blume) A. Gray, A. balsamifera, C. camphora, and P. cabli.

AbstractThe Forest Products Commission of Western Australia manages a sandalwood (Santalum spp.) core germplasm collection at Kununurra in the states far north. This collection serves as a significant seed source for sandalwood plantations in the area and remains an important resource for ongoing research. The collection contains S. album trees sourced from Indian arboreta, along with a few trees from West Timor, Indonesia. Also present are representatives of S. macgregorii from Papua New Guinea and S. austrocaledonicum from Vanuatu and/or New Caledonia. Despite the apparently diverse seed origins, the genetic background of many of the accessions remains vague. In this study, diversity and relatedness was assessed by nuclear and chloroplast RFLPs and a phylogeny was inferred. Nuclear RFLPs revealed very low levels of genetic diversity for a tree species, with an observed and expected heterozygosity (Ho and He) of 0.047. Nineteen genotypes were identified within the 233 S. album individuals sampled, with only one tree known to have originated from Timor being differentiated from Indian material. Other trees thought to have come from Timor grouped with those believed to be from India, indicating they were either incorrectly labelled or sourced from heavily modified populations. Despite the poor sample size, chloroplast RFLP analysis revealed no genetic distinction between the Timorese and Indian S. album, which supports the theory of human mediated seed dispersal from Timor to India. The structure of the phylogeny and associated relatedness has assisted in the establishment of seed orchards, designed to ensure maximum diversity is maintained through limiting the proximity of highly related trees. Finally, in light of these and other findings, a hypothesis concerning the evolution of S. album is proposed.

Sandalwood (Santalum album Linn.) is one of important native tree species in East Nusa Tenggara, slow-growing species with high economic value. The aims of this research were to analyze the effectiveness of local AMF inoculum andutilization of host plants to improve the growth of Sandalwood seedlings in the nursery. The research used complitely randomised design (CRD)-split plot design where origin of AMF soil inoculum as the main plot namely control (M0), soilinoculum from Nano Vilage (M1), HTC Bu’at (M2) and Demplot Cendana Sisismeni (M3). While the host plants as the sub-plot, consist of control no host plant (T0), Desmodium ovalifolium (T1), Desmodium heterophyllum (T2) andAlternanthera sp. (T3). The result showed that the local AMF and host plants applications effectively improved Sandalwood seedling growth, especially in heigth, number of leaves and diameter. The best interaction of soil inoculumfrom HTC Bu’at and D. heterophyllum (M2T2) increased plant height, number of leaves, diameter, shoot dry weight (BKP), root colonization, shoot root ratio (NPA) and seed quality index (IMB) compared with control. Soil inoculuminteraction from HTC Bu’at and D. heterophyllum host plants were exellent for improved the quality of Sandalwood seedlings.Key words : Alternanthera, arbuscular mychorrizhal fungi, Desmodium, sandalwood

We developed an adaptable, transparent tool that can be used to quantify and compare vulnerability to overharvest for wild collected medicinal plants. Subsequently, we are creating a list of the most threatened medicinal plants in temperate North America. The new tool scores species according to their life history, the effects of harvest, their abundance and range, habitat, and demand. The resulting rankings, based on explicit criteria rather than expert opinion, will make it easier to discuss areas of vulnerability and set conservation priorities. Here we present scores for 40 species assessed using the At-Risk Tool and discuss the traits that led to different scores for six example species: echinacea (Echinacea angustifolia DC. Asteraceae), peyote (Lophophora williamsii (Lem. ex Salm-Dyck) J.M. Coult. Cactaceae), sandalwood (Santalum spp. L. Santalaceae), stinging nettle (Urtica dioica L. Urticaceae), American ginseng (Panax quinquefolius L. Araliaceae) and mayapple (Podophyllum peltatum L. Berberidaceae).

Our understanding of nutrient transfer between host and flowering parasitic plants is usually based mainly on physiological concepts, with little information on haustorial structure related to function. The aim of this paper is to study the haustorial interface and possible pathways of water and solute transfer between a number of host and parasites.Haustorial tissues were fixed in glutaraldehyde and embedded in glycol methacrylate (LM), or fixed in glutaraldehyde then OsO4 and embedded in Spurr’s resin (TEM).Our study shows that lumen to lumen continuity occurs between tracheary elements of a host and four S.W. Australian species of aerial mistletoes (Fig. 1), and some root hemiparasites (Exocarpos spp. and Anthobolus foveolatus) (Fig. 2). On the other hand, haustorial interfaces of the root hemiparasites Olax phyllanthi and Santalum (2 species) are comprised mainly of parenchyma, as opposed to terminating tracheads or vessels, implying that direct solution transfer between partners via vessels or tracheary elements may be limited (Fig. 3).

In 2003 and 2004, a survey of grapevine (Vitis vinifera L.) trunk pathogens was conducted in 30 vineyards in the Western and Northern Cape and Limpopo provinces of South Africa. In each vineyard, 20 visually healthy plants were sampled randomly by removing the distal part of one cordon arm. Isolations were made onto potato dextrose agar (PDA) from the internal wood decay symptoms observed in the cordon samples. Seven Botryosphaeriaceae spp. were identified, including Lasiodiplodia crassispora (1). Other Botryosphaeriaceae spp. are known grapevine trunk pathogens (2). Species identity was confirmed by DNA sequence data of the partial translation factor 1-α gene (1) and sequences deposited in GenBank (GU233658 and GU233659). The L. crassispora isolates (CBS 125626 and 125627) were associated with brown internal necrosis, a known symptom of grapevine Botryosphaeriaceae spp. infection (3), in the cordon arms of Ruby Cabernet grapevines occurring in two vineyards in the Northern Cape Province. L. crassispora was described from cankered wood of Santalum album in Western Australia and endophytically from Eucalyptus urophylla in Venezuela (1). Its grapevine pathogen status was determined using both isolates in a repeated pathogenicity test that included three isolates each of Botryosphaeria dothidea and Neofusicoccum australe as positive controls (2), Trichoderma harzianum as a nonpathogen treatment, and an uncolonized agar plug as a negative control. The Botryosphaeriaceae spp. and T. harzianum were plated on PDA and incubated at 25°C for 7 days. Lignified, 6-month-old shoots of grapevine cv. Chardonnay were excised from grapevines with internodes 4 to 6 used for inoculations. Before wounding, shoots were disinfected by submersion for 1 min in a 1 ml/liter solution of a quaternary ammonium compound (Sporekill; ICA International Chemicals (Pty) Ltd, Stellenbosch, South Africa). Twelve shoots were used for each isolate or control treatment. Wounds were made 2 mm deep on the fifth internode of the shoots with a 5-mm flame-sterilized cork borer (2,3). Wounds were inoculated with a pathogen colonized agar plug (5 mm in diameter) or an uncolonized agar plug and then covered with Parafilm (2,3). Inoculated shoots were incubated in the dark in moist chambers for 14 days at 25°C. After incubation, the bark of the shoots was peeled from the area around the wound and the lengths of any resultant lesions were measured under sterile conditions. The inoculum effect was assessed by analysis of variance and Student's t-test. Results showed that significantly (P < 0.0001) longer lesions were caused by L. crassispora (13.36 mm) compared with N. australe (9.27 mm) and B. dothidea (5.28 mm) and also significantly longer than lesions caused by the nonpathogen and negative controls (3.23 and 2.90 mm, respectively). To determine if lesions were caused by inoculated fungi, isolations were made from the tissue at the edges of the lesions by aseptically removing five 0.5 × 1 mm pieces of wood and placing them on PDA dishes amended with 0.04 g/liter of streptomycin sulfate. Dishes were incubated under normal fluorescent light at 25°C for 14 days before identifying isolated fungi based on morphological and cultural characteristics (1). To our knowledge, this is the first report of L. crassispora as a grapevine pathogen. References: (1) T. I. Burgess et al. Mycologia 98:423, 2006. (2) J. M. van Niekerk et al. Mycologia 96:781, 2004. (4) J. M. van Niekerk et al. Phytopathol. Mediterr. 45:S43, 2006.

The effects of climate change on plant natural resources is becoming an urgent problem that requires effective action to preserve what is left of remnant native and wild species. Native plant species can hold important genetic information that can be applied to sustainable management efforts. The main theme of this thesis concerns the genomics of the genus Santalum, also known as the sandalwoods, a highly exploited genus of trees, extending from Australasia into the Pacific. The sandalwoods are much sought after for their fragrant timber and oil, and have been wild harvested for centuries; to such an extent that one of the species is now extinct. Using next generation sequencing techniques (NGS) with an Ion Torrent platform, this thesis involves an extensive genomic survey of the genus to realise several evolutionary questions. The central approach is to obtain genome-wide genetic markers using NGS, and then use these markers to first, infer the genetic diversity of populations of Santalum acuminatum, a sister species of Santalum spicatum or Australian sandalwood, across South Australia, Western Australia and New South Wales; second, to explore the feasibility of this approach in reconstructing phylogenetic relationships between species, some of which exhibit morphological phenotypes that make their identification difficult. Included in this work is an exploration of the utility of NGS platforms for ‘deep’ sequencing traditional markers (ccmp2, trnL, nrITS) and a consideration of their applications for various areas of research. To give a time perspective to the work, an isotope and macrofossil analysis of cave sediments, to infer past plant vegetation and climate scenarios, closes the data chapters. Among the results inferred from markers obtained from the Ion Torrent are that the genetic diversity of S. acuminatum appeared to be low and a population structure analysis reveals a mixing of genotypes across the geographic range of the populations assessed. The phylogenomics of Santalum using NGS markers revealed a similar path of dispersals out of Australia and into the Pacific as reported in previous studies, but with fewer events than previously thought. It was also found that there appear to have been hybridisation between species in some populations of Santalum in the dry lands of South Australia. As well, it was found to be quite feasible to deep sequence traditional markers, such as chloroplast locus ccmp2, proving that they can be applied in new ways for research in metabarcoding of bulk samples. This novel application of traditional markers can then be applied in studies of soil sediments, as another proxy to sedimentary studies alongside isotope and macrofossil analyses. Together, the set of studies presented in this thesis represent an interdisciplinary approach to a botanical study and begins to answer questions concerning the relationship between humans and plants. It is possible to integrate a battery of methods to study a highly exploited plant genus such as Santalum in its long historical trajectory with our species, and obtain results that can help in proposing potential solutions for its future sustainable management.
Thesis (Ph.D.) (Research by Publication) -- University of Adelaide, School of Biological Sciences, 2015.

No Brasil as Áreas Protegidas são territórios demarcados e administrados com o intuito de conservar e preservar o patrimônio natural e cultural existentes em determinado local e no seu entorno. Neste contexto, qualquer estudo realizado em áreas protegidas e suas proximidades contribui significantemente para o entendimento da sua dinâmica e relevância. O livro “Interdisciplinaridade em áreas protegidas e suas proximidades: usos e sustentabilidade”, que foi idealizado pelo Grupo de Pesquisa Áreas Protegidas da Amazônia: usos e sustentabilidade (GPAPA/UFPA), reuniu alguns pesquisadores de diversas áreas para divulgar seus estudos e experiências em áreas protegidas. O livro é composto por dez capítulos: Reprodução do Bagre Ageneiosus ucayalensis em uma área protegida da Amazônia: anatomia e histologia do sistema reprodutor de machos, como ferramenta para evidenciar a inseminação; Unidade de Conservação de Proteção Integral: análise do uso indireto no Parque Estadual do Utinga, Belém-PA; Atravessando os rios da Amazônia: a qualidade do transporte turístico na ilha de Cotijuba (PA); Os objetivos do desenvolvimento sustentável nas práticas de Turismo de Base Comunitária em uma Reserva da Vida Silvestre: análise do roteiro em Santo Amaro/Benevides/Pará; Turistas e suas experiências na Floresta Nacional do Tapajós, Santarém (PA); Influência de uma Unidade de Conservação sobre a diversidade de peixes de riachos na Amazônia Oriental; Coaves Kids: clube de observadores de aves infantil de Sorocaba (SP); Produção de juta e malva e o uso sustentável das Áreas de Preservação Permanente na Amazônia; Gestão do turismo em Unidades de Conservação – estudo sobre a RESEX de Soure/Marajó-Pará; e É possível aliar desenvolvimento urbano com a sustentabilidade das Unidades de Conservação? O caso da região metropolitana de Belém/PA. Os artigos aqui apresentados sinalizam a tentativa de agregar e impulsionar estudos nas mais diversas áreas, que visam contribuir à conservação/preservação de Áreas Protegidas. Tenham todos uma boa leitura!