检索结果-南通市图书馆

Chinese Geographical Science 1994年第2期4卷 174-185页

作者：朱华 xishuangbanna tropical botanical garden the Chinese Academy of Sciences Mengla PRC

ＴＨＥＦＬＯＲＩＳＴＩＣＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＴＲＯＰＩＣＡＬＲＡＩＮＦＯＲＥＳＴＩＮＸＩＳＨＵＡＮＧＢＡＮＮＡＺｈｕＨｕａ（朱华）（ＸｉｓｈｕａｎｇｂａｎｎａＴｒｏｐｉｃａｌＢｏ... 详细信息

ＴＨＥＦＬＯＲＩＳＴＩＣＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＴＲＯＰＩＣＡＬＲＡＩＮＦＯＲＥＳＴＩＮＸＩＳＨＵＡＮＧＢＡＮＮＡＺｈｕＨｕａ（朱华）（ＸｉｓｈｕａｎｇｂａｎｎａＴｒｏｐｉｃａｌＢｏｔａｎｉｃａｌＧａｒｄｅｎ，ｔｈｅ...

关键词： floristic characteristics,tropical rainforest xishuangbanna

Prolonged milk provisioning and extended maternal care in the milking spider Toxeus magnus: biological implications and questions unresolved

在线全文

学校读者我要写书评

暂无评论

Zoological Research 2019年第4期40卷 241-243页

作者： Bing Dong Rui-Chang Quan Zhan-Qi Chen CAS Key Laboratory of tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesXishuangbanna Yunnan 666303China Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesXishuangbanna Yunnan 666303China University of Chinese Academy of Sciences Beijing 100049China

Prolonged milk provisioning and extended parental care for nutritionally independent offspring, previously considered to only co-occur in long-lived mammals (Clutton-Brock, 1991;Royle et al., 2012), were recently reported in the reproduction of the milking spider, Toxeus magnus (Chen et al. 2018). Newly hatched T. magnus spiderlings require 53 days to develop to maturity, with an average adult body length of 6.6 mm.

关键词： milking spider Toxeus magnus biological implications Prolonged milk provisioning

Strong intraspecific trait variation in a tropical dominant tree species along an elevational gradient

在线全文

学校读者我要写书评

暂无评论

Plant Diversity 2020年第1期42卷 1-6页

作者： Wumei Xu Kyle W.Tomlinson Jie Li Plant Phylogenetics and Conservation Group Center for Integrative ConservationXishuangbanna Tropical Botanical GardenChinese Academy of SciencesKunming 650223China Community Ecology and Conservation Group Center for Integrative ConservationXishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China

Functional trait variation of plant species includes both inter-and intraspecific variation;however,traitbased plant ecology generally considers only interspecific variation while ignoring intraspecific *** reason for this neglect is that intraspecific variation may be negligible when compared to interspecific variation;however,direct comparisons between inter-and intraspecific variation of plant species are lacking,especially in tropical *** we investigated intraspecific leaf trait variation(leaf area,specific leaf area,leaf thickness,leaf density,leaf chlorophyll content) of Pittosporopsis kerrii Craib(Icacinaceae),the most abundant tree species in the xishuangbanna tropical seasonal rainforest in southwestern China,along an elevational gradient(703-824 m).We found a substantial range of intraspecific variation in *** that was never less than 22.1% of range of the interspecific variation among 462 tree species reported before in the same ***,with increased elevation,both leaf thickness and density increased and specific leaf area decreased *** could be more important for the individuals of *** to produce thicker and denser leaves to tolerate environmental stress(e.g,soil water availability) rather than having high growth rates at the places with higher elevation in the xishuangbanna tropical seasonal rainforest.

关键词： Functional traits Intraspecific variation Trade-off tropical seasonal rainforest xishuangbanna

Trehalose phosphate synthase 5-dependent trehalose metabolism modulates basal defense responses in Arabidopsis thaliana

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2019年第4期61卷 509-527页

作者： Xuelan Wang Yan Du Diqiu Yu Key Laboratory of tropical Plant Resources and Sustainable Use Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences University of Chinese Academy of Sciences

Despite the recent discovery that trehalose synthesis is important for plant development and abiotic stress tolerance, the effects of trehalose on biotic stress responses remain relatively unknown. In this study, we demonstrate that TREHALOSE PHOSPHATE SYNTHASE 5(TPS5)-dependent trehalose metabolism regulates Arabidopsis thaliana defenses against pathogens(necrotrophic Botrytis cinerea and biotrophic Pseudomonas syringae).Pathogen infection increased trehalose levels and upregulated TPS5 expression. Application of exogenous trehalose significantly improved plant defenses against B. cinerea, but increased the susceptibility of plants to P. syringae. We demonstrate that elevated trehalose biosynthesis, in transgenic plants over-expressing TPS5, also increased the susceptibility to P. syringae, but decreased the disease elcit r symptoms caused by B. cinerea. The knockout of TPS5 prevented the accumulation of trehalose and enhanced defense responses against P. syringae. Additionally, we observed that a TPS5-interacting protein(multiprotein bridging factor 1c) was required for induced expression of TPS5 during pathogen infections. Furthermore, we show that trehalose promotes P. syringae growth and disease development, via a mechanism involving suppression of the plant defense gene, Pathogenesis-Related Protein 1. These findings provide insight into the function of TPS5-dependent trehalose metabolism in plant basal defense responses.

关键词： Trehalose phosphate synthase Arabidopsis thaliana^FA

Disturbance effects on community structure of Ficus tinctoria fig wasps in xishuangbanna, China： Implications for the fig/fig wasp mutualism

在线全文

学校读者我要写书评

暂无评论

Insect Science 2009年第5期16卷 417-424页

作者： Wen-Juan Ma Da-Rong Yang Yan-Qiong Peng xishuangbanna tropical botanical garden Chinese Academy of Sciences Kunming Graduate School of the Chinese Academy ofSciences Beijing China

Fig trees are important components of tropical forests, because their fruits are eaten by so many vertebrates, but they depend on pollinating fig wasps to produce mature fruits. Disturbance to habitat structure can have a major impact on insect diversity and com- position, potentially reducing fruit yields. We investigated the impact of habitat disturbance on the fig wasp community associated with male figs ofFicus tinctoria in xishuangbanna, China. The community comprised one pollinator species Liporrhopalum gibbosae and six non-pollinating wasp species： Sycoscapter sp. 1, Philotrypesis ravii, Philotrypesis sp. 1, Neosycophila omeomorpha, Sycophila sp.1, and Walkerella sp.1. More disturbed areas were characterized by higher temperatures, less shade, and more vehicle noise. The response of the fig wasp community was complex, with no simple relationship between intensity of disturbance and pollinator abundance. However, the sex ratios （proportion of male progeny） of pollinators increased significantly in more disturbed areas. We conclude that potential changes in fig wasp community composition brought about by disturbance, are unpredictable, with unclear consequences for tropical rainforest biodiversity.

关键词： disturbance Ficus tinctoria fig/fig wasp mutualism wasp community

A DISCUSSION ON BIOGEOGRAPHICAL LINES OF THE tropical SUBtropical YUNNAN

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Geographical Science 2002年第1期12卷 91-97页

作者： ZHU Hua, YAN Li chun(Kunming Division of xishuangbanna tropical botanical garden, the Chinese Academy of Sciences, Kunming 650223, P.R.China) Kunming Division of xishuangbanna tropical botanical garden the Chinese Academy of Sciences Kunming P. R. China

Based on comparative studies on four regional floras from northwest, west, south and southeast of Yunnan respectively, the formerly suggested two biogeographical lines, i.e. the “Tanaka Line" and the “Ecogeographical Diagonal Line", both going from northwest to southeast of Yunnan, and their significance are discussed. In family and generic levels, similarity coefficients among the four compared floras are more than 93% and 60% separately, which indicate the close floristic affinities among them. The highest similarity coefficient, i.e. 98.7% in family level and 78.6% in generic level separately, is found between the regional flora of northwest Yunnan and the flora of southeast Yunnan although these two regions are the most distant away each other among the compared regional floras. The flora of northwest Yunnan is also the most similar to the flora of southeast Yunnan in floristic composition. These support the idea of “Ecogeographical Diagonal Line". In specific level, the relatively high similarity coefficient is between the regional flora of west Yunnan and the one of south Yunnan. The floristic affinities among these regional floras and some distribution patterns could be explained by the geological history and tectonic theory of Yunnan.

关键词： biogeographical lines floristic affinity Yunnan

The xishuangbanna Declaration on Plant Conservation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2019年第2期12卷 125-126页

作者： The Organizing Committee of the Fourth xishuangbanna International Symposium xishuangbanna tropical botanical garden Chinese Academy of Sciences Menglun Mengla Yunnan 666303 China

The participants of the Fourth xishuangbanna International Symposium, Saving all the Plants in a Changing World, held at the xishuangbanna tropical botanical garden, Chinese Academy of Sciences, Yunnan, China, on January 3-5, 2019 1. Recognizing that plant diversity forms the essential basis for natural ecosystems and human well-being.

关键词： Plant Conservation xishuangbanna Declaration

Iron uptake, signaling, and sensing in plants

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant Communications 2022年第5期3卷 75-87页

作者： Gang Liang CAS Key Laboratory of tropical Plant Resources and Sustainable Use Xishuangbanna Tropical Botanical GardenKunmingYunnan 650223China

Iron (Fe) is an essential micronutrient that affects the growth and development of plants because it participates as a cofactor in numerous physiological and biochemical reactions. As a transition metal, Fe is redoxactive. Fe often exists in soil in the form of insoluble ferric hydroxides that are not bioavailable to *** have developed sophisticated mechanisms to ensure an adequate supply of Fe in a fluctuating environment. Plants can sense Fe status and modulate the transcription of Fe uptake-associated genes, finallycontrolling Fe uptake from soil to root. There is a critical need to understand the molecular mechanisms bywhich plants maintain Fe homeostasis in response to Fe fluctuations. This review focuses on recentadvances in elucidating the functions of Fe signaling components. Taking Arabidopsis thaliana and Oryzasativa as examples, this review begins by discussing the Fe acquisition systems that control Fe uptake fromsoil, the major components that regulate Fe uptake systems, and the perception of Fe status. Future explorations of Fe signal transduction will pave the way for understanding the regulatory mechanisms that underlie the maintenance of plant Fe homeostasis.

关键词： iron metal homeostasis Fe uptake Fe signaling Fe sensor plant nutrition

Effect of Different Bacterial-Feeding Nematode Species on Soil Bacterial Numbers,Activity,and Community Composition

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pedosphere 2014年第1期24卷 116-124页

作者： XIAO Hai-Feng LI Gen LI Da-Ming HU Feng LI Hui-Xin Key Laboratory of tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of Sciences College of Resources and Environmental Sciences Nanjing Agricultural University

The effects of bacterial-feeding nematodes on bacterial number, activity, and community composition were studied through a microcosm experiment using sterilized soil inoculated with soil bacteria （soil suspension） and with bacteria and three species of bacterial-feeding nematodes （ Cephalobus persegnis, Protorhabditis filiformis, and Caenorhabditis elegans）. Catalyzed reporter deposition-fluorescence in situ hybridization, CO2 evolution, and denaturing gradient gel electrophoresis （DGGE） of PCR ampli- fied 16S rRNA gene fragments were used to investigate bacterial numbers, antivity, and community composition, respectively. Our results showed that bacterial numbers and activity significantly increased in the presence of bacterial-feeding nematodes, which indicated that bacterial-feeding nematodes had a significant positive effect on soil bacteria. The different nematode species had different effects on bacterial numbers and activity. C. persegnis and P. filiformis, isolated from native soil, increased the bacterial number and activity more than C. elegans. The DGGE analysis results showed that dominant bacterial species significantly differed among the treatments, which suggested that bacterial-feeding nematode species modified the bacterial community composition in soil. Further gene sequence analysis results showed that the dominant bacterial species in this study were gram-negative bacteria. Given the completely same conditions except nematode species, the varied selective feeding behavior of different nematode species was the most likely reason for the altered bacterial community composition. Overall, the alteration of bacterial numbers, activity and community composition resulting from the bacterial-feeding nematodes may ult!mately affect soil ecological functioning and processes.

关键词： CARD-FISH CO2 evolution DGGE gene sequence gram-negative bacteria

Musa chunii Hkkinen,a new species (Musaceae) from Yunnan,China and taxonomic identity of Musa rubra

在线全文

学校读者我要写书评

暂无评论

Journal of Systematics and Evolution 2009年第1期47卷 87-91页

作者： Markku HKKINEN Botanic garden University of Helsinki xishuangbanna tropical botanical garden Chinese Academy of Sciences

The center of diversity of the genus Musa (Musaceae) is in Southeast Asia, a region not studied in detail and where new species and varieties continue to be reported. A new wild banana species, M. chunii Hkkinen from Yunnan, China is described and illustrated based on observed morphological characteristics in the field. This extremely rare new species was only found in Tongbiguan Nature Reserve, Dehong District, West Yunnan. A key to M. chunii and related taxa is provided. In addition, critical notes regarding M. rubra Kurz identity are given.

关键词： Musa Musa chunii Hkkinen Musa rubra Kurz Musaceae Rhodochlamys Southeast Asia wild banana