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

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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

Bird guild loss and its determinants on subtropical land-bridge islands, China

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Chinese Birds 2015年第2期6卷 99-106页

作者： Zhifeng Ding Kenneth James Feeley Huijian Hu Ping Ding The Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education College of Life Sciences Zhejiang UniversityZijin’gang Campus Guangdong Entomological Institute & South China Institute of Endangered Animals Department of Biological Sciences Florida International University Center for tropical Plant Conservation Fairchild Tropical Botanic Garden

Background: The guild concept is useful for understanding the community structure in a land-bridge island system,but most fragmentation studies have focused only on the importance of island area and isolation, other island attributes such as perimeter-area ratio(PAR) were overlooked or ***: We have adopted a guild approach to investigate the impacts of island attributes on bird guild richness on a set of 41 recently isolated land-bridge islands in the Thousand Island Lake(TIL), ***: We found insectivores had the largest number of species(34 species), fol owed by understory foraging guilds(28 species), omnivores(27 species) and canopy guilds(25 species). Furthermore, our data showed that migrants and residents responded equal y to island area, insectivores and understory guilds were sensitive to island area but omnivores and canopy guilds were not very sensitive. Most guild richness was determined by island area, except for omnivores and canopy ***: Although PAR or habitat diversity found to be important for bird species richness, our results highlight the importance of island area in maintaining bird diversity in fragmented island systems.

关键词： Bird guilds Island area Land-bridge islands PAR Thousand Island Lake z values

Tsaokoin,a New Bicyclic Nonane from Amomum tsao-ko

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Chinese Chemical Letters 2001年第3期12卷 227-230页

作者： Qi Shi SONG Rong Wei TENG Xi Kui LIU Chong Ren YANG Kunming Institute of Botany Chinese Academy of SciencesKunming 650204 Xishuangbanna tropical botanic garden Chinese Academy of SciencesKunming 650223

7α-Hydroxy-8β,9β-H- cis- bicyclo[4,3,0]non-4-ene-4-aldehyde, a nonane compound with novel skeleton, named tsaokoin, was isolated from the fruits of Amomum tsao-ko. Its structure was established on the basis of spec... 详细信息

关键词： 7α-Hydroxy-8β 9β-H- cis- bicyclo[4.3.0]non-4-ene-4-aldehyde tsaokoin Amomum tsao-ko bicyclononane

A hypothesis for a novel role of RIN1-the modulation of telomerasefunction by the MAPK signaling pathway

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BIOCELL 2020年第4期44卷 525-534页

作者： PATRIC HAMBLETON MANUEL ALEJANDRO BARBIERI Department of Biological Sciences Florida International UniversityMiami33199USA Biomedical Science Institute Florida International UniversityMiami33199USA fairchild tropical botanic garden Miami33156USA International Center of tropical Botany Florida International UniversityMiamiFL33199USA

Cancerous cells display abnormalities in the signal transduction pathways responsible for responding to extracellular growth factors,or *** that alter proteins involved in these types of pathways can lead to inappropriate or unregulated cell growth,and therefore predispose the cell to become *** critical role of the Ras/mitogen-activated protein kinase(MAPK)pathway in transducing growth signals to the interior of the cell and subsequently stimulating cell growth and proliferation is underscored by the fact that roughly one quarter of all human tumors contain mutant forms of Ras proteins.A particular focus on the signaling and membrane trafficking adaptor protein known as Ras interference 1(RIN1)will reveal how this protein can potentially play a significant role in the development of the cancerous phenotype in certain cell *** equal interest is the possible connection between the Ras/MAPK pathway,and subsequent expression and enzymatic activity of telomerase–a key enzyme known to be overexpressed in roughly 85%of all ***1 is a 783 amino acid(84 kDa)cytosolic protein that is involved in key steps of growth factor receptormediated endocytosis and can potentially moderate signaling through the MAPK ***1,with its unique ability to compete directly with Raf for activation by Ras,could potentially influence signaling through more than one of the MAPK *** so,RIN1 may then be able to exert a precise and selective effect on the downstream signal(s)of a MAPK target such as telomerase.

关键词： Cancer Regulation Pathway Telomere

Anti-lipid droplets accumulation effect of Annona montana(mountain soursop)leaves extract on differentiation of preadipocytes

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BIOCELL 2022年第3期46卷 567-578页

作者： IVY LEUNG MARIA-LUISA VEISAGA MARGARITA ESPINAL WEI ZHANG ROBERT BARNUM MANUEL ALEJANDRO BARBIERI Department of Biological Sciences Florida International UniversityMiami33199USA Biomolecular Sciences Institute Florida International UniversityMiami33199USA fairchild tropical botanic garden Coral Gables33156USA International Center of tropical Botany Florida International UniversityMiami33199USA

The Annona genus is a member of Annonaceae,one of the largest families of plants across tropical and subtropical *** family has been used in several ethnomedicinal practices to treat a multitude of human ***,the molecular mechanism underlying its effect on the lipid droplet formation and on the expression of adipogenic markers of this plant remain to be *** this study,we examined whether the extracts from the aerial part of Annona montana affect in vitro differentiation of *** our investigations,both mouse embryo fibroblast 3T3-L1 and normal human primary subcutaneous preadipocytes were incubated with Annona montana extracts(-and its subfractions-)and then analyzed on preadipocyte differentiation,lipid content,lipid droplet size and number,the expression of adipogenic-specific transcriptional factors,as well as cell *** our examinations,we found the Annona montana ethyl acetate extract to exhibit a potent inhibitory effect on adipogenesis,without affecting cell survival,in a dose-dependent *** inhibitory effects included a significant decrease in the accumulation of lipid content by both a dramatic reduction of size and number of lipid *** extract strongly attenuated the expression of PPARγand *** also inhibited the expression of CEBPα,FAS,and Akt without influencing Erk1/2 *** findings suggest that specifically,the Annona montana ethyl acetate extract has a prominent inhibitory effect in cellular pathways of adipocyte differentiation by modulating specific gene expression,which is known to perform a pivotal role during adipogenesis.

关键词： Annona montana extracts Phytochemical analysis Adipogenesis Lipid droplets Adipogenic-specific markers

The variation and regional differences of precipitation in the Longitudinal Range-Gorge the Region

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Chinese Science Bulletin 2007年第A02期52卷 59-73页

作者： HE DaMing LI ShaoJuan ZHANG YiPing Asia Intemational Rivers Center Yunnan University Kunming 650091 China Xishuangbanna tropical botanic garden Chinese Academy of Sciences Kunming 650223 China

这份报纸基于记录在 36 个气象学的车站在 1960 ～ 2001 期间观察了的每日的降雨在纵的范围峡区域(LRGR ) 检验降水的地区性的差别。在不同空间、时间的规模的降水的地区性的差别被分析，在完成在 LRGR 的特殊走廊障碍功能下面。结果显... 详细信息

这份报纸基于记录在 36 个气象学的车站在 1960 ～ 2001 期间观察了的每日的降雨在纵的范围峡区域(LRGR ) 检验降水的地区性的差别。在不同空间、时间的规模的降水的地区性的差别被分析，在完成在 LRGR 的特殊走廊障碍功能下面。结果显示很靠近的连接在地区性的差别和走廊障碍功能之间存在：在北 LRGR 的大多数区域(> 26 湩？

关键词：地区差异性纵向岭谷区地域性走廊

The tropical-subtropical evergreen forest transition in East Asia:An exploration

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Plant Diversity 2020年第4期42卷 255-280页

作者： Peter Ashton Hua Zhu Arnold Arboretum Harvard UniversityRoyal Botanic GardensKewUK Center for Integrative Biology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesYunnanPR China

The transition from tropical to subtropical(warm temperate)evergreen forests is more clearly apparent in East Asia,fromNepal to the western Pacific coast,than elsewhere in the *** review the nature of this transition and hypothesize the physical,ultimately climatic,factors thatmay maintain it,with a special focus on how the increasing instability and warming of climates will affect these forests.A primary climatic mediator of the transition is proposed,thereby offering a testable hypothesis for the climateeforest transition *** is known of this transition is summarized in context of the primary climatic mediators of elevational zonation of forest formations in equatorial Asia to the tree line,in the Himalaya at the India-Indo-Burma northern tropical margin,and as both elevational and latitudinal zonation in southern *** secondary edaphic and other physical changes are described for the Himalaya,and hypothesized for southern *** forest ecotones are seen to be primarily defined by tree floristic change,on which account changes in structure and physiognomy are *** montane tropical-subtropical transition in the Himalaya is narrowand observed to correlate with an as yet ill-defined frost line.A distinct tropical-subtropical transition forest is recognized in the southwest *** is a total change in canopy species at the Himalayan ecotone,but subcanopy tropical species persist along an elevational decline of c.400 *** latitudinal transition in South China is analogous,but here the tropical subcanopy component extends north over ten degrees latitude,albeit in *** tropical-subtropical transition is uniquely clear in East Asia because here alone a tropical wet summer-dry winter monsoon extends to 35north latitude,encompassing the subtropical evergreen forest,whereas subtropical evergreen forests elsewhere exist under drier temperate summer climate regimes.

关键词： tropical Subtropical Forest transition Ecotone East Asia

New record of luminescent Mycena chlorophos(Mycenaceae)from Western Ghats of India

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Studies in Fungi 2021年第1期6卷 507-513页

作者： Arya CP Ratheesh S Pradeep CK Microbiology Division Jawaharlal Nehru Tropical Botanic Garden&Research InstitutePalodeThiruvananthapuram695562KeralaIndia

An interesting luminescent Mycena was collected from dead bamboo culms on several occasions from an evergreen forest in Kerala State,*** morphological and molecular studies with nrITS sequence data confirmed it as Mycena chlorophos.A reappraisal of the species along with comprehensive description,photographs and a discussion with related species is *** forms the first record of this species from India.

关键词： Bioluminescent new record nrITS Omphalotaceae Pleurotaceae Physalacriaceae

tropical deciduous forest in Yunnan,southwestern China:Implications for geological and climatic histories from a little-known forest formation

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Plant Diversity 2021年第6期43卷 444-451页

作者： Hua Zhu Peter Ashton Bojian Gu Shisun Zhou Yunhong Tan Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglaYunnan 666303PR China Arnold Arboretum Harvard University and Royal Botanic GardensKewUK

In the southern mountain ranges of Yunnan province,China,deep valleys of several large rivers create rain shadows with hot dry summers,and are locally designated tropical;towards the north,notably in the Lancang(Upper Mekong)valley,these regions may experience frost during *** woody forest canopy of these valleys is predominantly deciduous,with evergreen elements in the north,where the canopy is open and the forest ***,we here present tall forest with a closed deciduous canopy and semi-evergreen subcanopy observed in hot dry valleys of these rivers and their tributaries in the tropical *** structure and physiognomy of these forests resemble the tall(moist)deciduous forest formation widespread in South Asia and ***,these forests are largely composed of tropical elements at both the generic(80%)and the species level(>70%),indicating that these forests are indeed *** originally hypothesized that these isolated forests represent refugia of a pre-Holocene extension of tall(moist)deciduous forest formation of South Asia and *** sample plot we established to test this hypothesis confirmed that these forests share the structure and physiognomy of the tall(moist)deciduous forest formation;however,the plots also showed that these forests lack the characteristic and dominant species of the formation's Indo-Burmese *** tree flora,in particular,indicates that both deciduous and evergreen elements are instead mostly derived from the adjacent tropical semi-evergreen forests of tropical southern China;yet they also include an important endemic element,which implies that these forests have survived as refuges possibly since the *** exceptional representation of evergreen elements in these forests indicates that they have rarely been subject to hot fires or domestic cattle browsing,adding to the unique nature of the forests and further justifying their strict conservation.

关键词： Floristic composition Physiognomy Biogeography Independent species assembly Tall deciduous forest Southwestern China