Botanica Orientalis: Journal of Plant Science最新文献_第4页

Seeds for life: a successful collaboration for the collection, conservation and utilization of Australian native seed 生命的种子:澳大利亚本地种子的收集、保护和利用的成功合作

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4367

S. Adkins, S. Ashmore, P. Cameron, J. Halford, Leon Beyleveld

{"title":"Seeds for life: a successful collaboration for the collection, conservation and utilization of Australian native seed","authors":"S. Adkins, S. Ashmore, P. Cameron, J. Halford, Leon Beyleveld","doi":"10.3126/BOTOR.V7I0.4367","DOIUrl":"https://doi.org/10.3126/BOTOR.V7I0.4367","url":null,"abstract":"The ‘Queensland Seeds for Life Project (Q-SFL)’ is collaboration between the Millennium Seed Bank Project (MSBP) of the Royal Botanic Gardens, Kew, United Kingdom and several Australian Institutes, including The University of Queensland. The purpose of the SFL program is to improve the conservation and restoration of plant biodiversity in Queensland. This will be achieved by the collection and long-term storage of seed (as well as DNA) from priority species and by the use of these species in scientific research and utilization programs. In the first phase, seed of c. 1,000 species of Queensland native plants have been collected with c. 750 new to the MSBP. Germination tests have been completed for more than c. 600 collections, improving the knowledge base for these species and raising the opportunity for sustainable utilization in our collaborations with the Australian Mining, Floriculture and Native Fruits Industries. Detailed experiments have resolved germination issues (e.g. seed dormancy) for 200 species within families and genera that have been notoriously difficult to germinate, providing better understanding and management of threatened species. Work has been undertaken on the conservation of recalcitrant species with storage and regeneration protocols being developed for a number of previously unstudied species. Under the Q-SFL project six PhD studies have been completed on topics such as native grass utilization, soil seed banks, seed dormancy, seed longevity, utilization of native fruits and long term germplasm storage using cryopreservation. Our plan for the future builds on improving the cooperative nature of our partnership so that our state team can work in a complementary fashion with those from other states and overseas to obtain effective outcomes.","PeriodicalId":252680,"journal":{"name":"Botanica Orientalis: Journal of Plant Science","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124714348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phylogenetics of the plant genera Dracaena and Pleomele (Asparagaceae) 龙门冬科龙门冬属植物的系统发育

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4385

P. Lu, C. Morden

{"title":"Phylogenetics of the plant genera Dracaena and Pleomele (Asparagaceae)","authors":"P. Lu, C. Morden","doi":"10.3126/BOTOR.V7I0.4385","DOIUrl":"https://doi.org/10.3126/BOTOR.V7I0.4385","url":null,"abstract":"This research focuses on the biodiversity and the evolutionary history of the world-wide medicinal plant genus, Dracaena , and the plant genus Pleomele . The debate concerning the relationship between Dracaena and Pleomele has continued till date - some botanists continue to include Pleomele within Dracaena but others claimed to separate the two genera. Dracaena is a genus comprising of about 40-100 species world wide, mainly in tropics and subtropics, with the exception of America. Pleomele is a genus that has been circumscribed consisting of 10-50 species in Asia. Till date, its center of biodiversity is unknown. Pleomele is only classified well in Hawaii, but confused with Dracaena in the other parts of Asia. Phylogenetic relationship among the 33 taxa within the Dracaena and Pleomele were reconstructed. DNA sequences from the chloroplast DNA intergenic spacer, trnL-trnF and trnH-psbA were analyzed. A phylogeny was reconstructed using neighbor-joining, maximum parsimony in PAUP*, and likelihood criteria in RAxML, and Bayesian inference in MrBayes. The phylogeny with Agave missionum and Agave attenuata as outgroup taxa indicates that Pleomele is mixed with Dracaena . This study provides the first phylogenetic reconstruction with taxonomic sampling of the Dracaena and Pleomele to resolve their questionable placement. The relationships of the climate change adaptation, biogeography, and conservation with the two plant genera will be further discussed in this study. Some suggestions for the benefits of the biodiversity and natural resource conservation in Himalaya regions will be addressed. One significant contribution of this research will be in promoting molecular taxonomy to solve problems in systematics especially in cases when the classification is in debate. Key-words: Phylogeny; chloroplast DNA; Asparagaceae; Dracaena ; Pleomele . DOI: 10.3126/botor.v7i0.4385 Botanica Orientalis – Journal of Plant Science (2010) 7: 64-72","PeriodicalId":252680,"journal":{"name":"Botanica Orientalis: Journal of Plant Science","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127789229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Preparing for climate change: an evaluative framework for prioritizing adaptation measures in Nepal 为气候变化做准备:尼泊尔适应措施优先排序的评估框架

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4371

A. Shrestha

{"title":"Preparing for climate change: an evaluative framework for prioritizing adaptation measures in Nepal","authors":"A. Shrestha","doi":"10.3126/BOTOR.V7I0.4371","DOIUrl":"https://doi.org/10.3126/BOTOR.V7I0.4371","url":null,"abstract":"Severe potential climate threats for Nepal are expected to impact water resource, agriculture, biodiversity and livelihood. While adaptation and mitigation are both valid policy options to tackle climate change, it is advantageous for developing countries to opt for adaptation. It is also desirable that the most feasible adaptation actions be applied to protect development investment from climate risks and to ensure maximum preparedness. Adaptation strategies consist of a set of measures that are highly effective, affordable, technically and socially feasible and contribute towards disaster risk reduction. An evaluative framework using scoring matrix is utilized to prioritize adaptation options. Adaptation options for threat areas identified for Nepal are analyzed based on literature in the context of Nepal as well as for Asia and for least developed countries (LDCs). The measures are evaluated across multiple categories like public/private costs, effectiveness, social/cultural feasibility, speed, support for mitigation and aid in disaster preparedness. Based on the scoring matrix evaluation, following measures appear most feasible: (1) water conservation and management; (2) investment in smaller hydro-power plants; (3) research/planting of climate resistant crops; (4) diversification of agriculture; (5) development of early warning system for disasters; and (6) flood control measures downstream. Due to financial and technical constraints, it is advantageous to opt for ‘no-regrets’ strategies which benefit even without climate change. These set of measures can be carried out at low costs to reap sure benefits and should be prioritized for execution through environmental policies especially climate policies. Key-words: Adaptation; climate change; climate policy; disaster risk reduction; Nepal. DOI: 10.3126/botor.v7i0.4371 Botanica Orientalis – Journal of Plant Science (2010) 7: 35-42","PeriodicalId":252680,"journal":{"name":"Botanica Orientalis: Journal of Plant Science","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129406864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Variation in the active constituent contents in Centella asiatica grown in different habitats in Nepal 尼泊尔不同产地积雪草有效成分含量的变化

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4372

A. Devkota, S. Dall'Acqua, P. K. Jha, G. Innocenti

引用次数: 14

The genus Rhododendron in north-east India 印度东北部的杜鹃花属

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4370

A. A. Mao

引用次数: 10

Floristic diversity and conservation strategies in cold desert of western Himalaya, India 印度喜玛拉雅西部寒冷沙漠区系多样性及保护策略

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4369

S. Srivastava

引用次数: 9

Distribution Patterns of Begonia species in the Nepal Himalaya 尼泊尔-喜马拉雅地区海棠的分布格局

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4386

S. Rajbhandary, M. Hughes, K. Shrestha

引用次数: 5

Effects of Ir, Sn and Sb in the intermediate Ir 1-x-y Sn x Sb y O 2+0.5y layer of Mn-Mo-Sn-O electrocatalyst for hydrogen production Ir、Sn和Sb在Mn-Mo-Sn-O电催化剂中间Ir 1-x-y Sn x Sb y o2 +0.5y层中的作用

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4387

J. Bhattarai

引用次数: 2

Anti-diabetic potential of crude extracts of medicinal plants used as substitutes for Swertia chirayita using in vitro assays 药用植物代獐牙菜粗提物抗糖尿病潜能的体外研究

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4373

Susanna Phoboo, P. Bhowmik, P. K. Jha, K. Shetty

引用次数: 14

Biodiversity and livelihood in land-use gradients in an era of climate change - outline of a Nepal-Swiss research project 气候变化时代土地利用梯度中的生物多样性和生计——尼泊尔-瑞士研究项目纲要

Botanica Orientalis: Journal of Plant Science Pub Date : 2011-03-09 DOI: 10.3126/BOTOR.V7I0.4368

C. Scheidegger, M. Nobis, K. Shrestha

{"title":"Biodiversity and livelihood in land-use gradients in an era of climate change - outline of a Nepal-Swiss research project","authors":"C. Scheidegger, M. Nobis, K. Shrestha","doi":"10.3126/BOTOR.V7I0.4368","DOIUrl":"https://doi.org/10.3126/BOTOR.V7I0.4368","url":null,"abstract":"The Swiss National Science Foundation has recently granted a project where we propose to study how different levels of land-use intensity (from primeval forests to arable fields) and climate do affect biodiversity on the southern slope of the Nepalese Himalayas. We will investigate replicated land-use gradients at various altitudes in three regions with a different regional climate, and in particular, different levels of seasonal precipitation. Our core study region will be the Manaslu Conservation Area characterized by an oceanic climate and this region will be compared to a hyper-oceanic region in Annapurna Conservation Area and a semi-oceanic region of the Sagarmatha (Everest) region. By using a quasi-experimental landscape approach organisms will be investigated in six valleys covering different precipitation regimes, altitudinal gradients over 1600 m representing different temperatures, and four land use types ranging from closed forests to open landscapes. These organisms will include plants, lichens, mushrooms, butterflies and birds. Population data of Red Listed mammals (flagship species) will be collected during the project by local authorities. The functional connectivity of forest fragments along land-use and climate gradients will be assessed for two intensively studied species, the epiphytic lichen Lobaria pindarensis and the tree species Taxus wallichiana.","PeriodicalId":252680,"journal":{"name":"Botanica Orientalis: Journal of Plant Science","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114393880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13