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A preliminary molecular historical biogeography of Caragana (Leguminosae) based on ITS and trnL-F DNA sequence data

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Journal of Arid Land 2009年第1期1卷 64-73页

作者： MingLi ZHANG1,2, Yun KANG3 , JunBo YANG4 1 Laboratory of Evolution and Biodiversity Conservation in Arid Region, Xinjiang institute of Ecology and geography, Chinese Academy of sciences, Urumqi 830011, China 2 institute of Botany, Chinese Academy of sciences, Beijing 100093, China 3 School of Pharmacy, Fudan University, Shanghai 200032, China 4 Kunming institute of Botany, Chinese Academy of sciences, Kunming 650204, China Chinese Acad sci Lab Evolut & Biodivers Conservat Arid Reg Xinjiang Inst Ecol & Geog Urumqi 830011 Peoples R China Chinese Acad sci Inst Bot Beijing 100093 Peoples R China Fudan Univ Sch Pharm Shanghai 200032 Peoples R China Chinese Acad sci Kunming Inst Bot Kunming 650204 Peoples R China

The nrDNA internal transcribed spacer (ITS) and cpDNA trnL-F internal spacer (IGS) sequence data of Caragana eight species and one outgroup Halimodendron halodendron, was employed to reconstruct a phylogenetic tree, then the area relationship was analyzed by means of component analysis (CA), Brooks parsimony analysis (BPA), and dispersal-vicariance analysis (DIVA), six areas were selected from two divided distributions of East Asia and Tethys in Caragana. The phylogenetic tree indicated that there were three distinctive groups, which were attributed to some morphological characters, first with pinnate foliage and deciduous rachis, second with palmate foliage and persistent sclerotic stick rachis, and third with pinnate foliage and persistent sclerotic stick rachis. The results of CA and BPA illustrated general area relationships. An explicit area relationship should be Altai-Sayan, Far East NE China and North China (Hengduan Mountains). DIVA recognized several explanatory vicariance and dispersal events. As the scenario of Caragana distribution pattern, it looks like the vicariance versus dispersal plays more important role. In vicaraince, there are not only the isolated far-distance vicariance, but also the adjacent vicariance especially a vicariance between Hengduan Mountains and North China.

关键词： Caragana ITS trnL-F phylogeny cladistic biogeography DIVA distribution pattern

Novel Product and Its Derivatives from the Reaction of Lappaconitine with HIO_4

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Chinese Chemical Letters 2000年第8期11卷 689-692页

作者： Qiao Hong CHEN, Feng Peng WANG, Kai Bai YU (Department of Chemistry of Medicinal natural Products. School of Pharmacy, West China University of Medical sciences, Chengdu 610041) (Chengdu institute of Organic Chemistry. Chinese Academy of sciences, Chengdu W China Univ Med sci Dept Chem Med Nat Prod Sch Pharm Chengdu 610041 Peoples R China Chinese Acad sci Chengdu Inst Organ Chem Chengdu 610041 Peoples R China

Treatment of lappaconitine 1 with HIO4 at room temperature afforded 2 in 41% yield, to which Br2-HOAc solution was added and allowed to stand at room temperature for 2 days to give 3 (13%) and 4(31%).

关键词： Norditerpenoid alkaloid lappaconitine oxidation.

Bioptical microcycles of laminated speleothems from China and their chronological significance

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Chinese science Bulletin 1999年第17期44卷 1604-1607页

作者： Ming Tan Xiaoguang Qin Linmei Shen Xianfeng Wang Yongjin Wang Tieying Li Linhua Song Laihong Wang Dongsheng Liu Chinese Acad sci Inst Geol Lab Speleothem & Paleoclimatol Beijing 100029 Peoples R China Benxi Scen Spots Res Adm Bur Benxi 117100 Peoples R China Nanjing Normal Univ Coll Geog Nanjing 210097 Peoples R China Beijing Geol Survey inst Beijing 102206 Peoples R China Chinese Acad sci Inst Geog Beijing 100101 Peoples R China Zhejiang Yaolin Cave Tonglu 311515 Peoples R China

Interfaces of microlayers, in most stalagmites from China, consist of opaque and organic materials. Observed with microscope, the interfaces seem dark under transmitted light and luminiferous under reflected fluorescent light. Stalagmites in which the two optical characters are unified spatially would be most suitable for cross-dating use, and can play an important role in the study on speleochronology and speleoclimatology.

关键词： natural clock stalagmite bioptical microlayer cross dating.

Spatial heterogeneity for grain size distribution of eolian sand soil on longitudinal dunes in the southern Gurbantunggut Desert

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Journal of Arid Land 2009年第1期1卷 26-33页

作者： Qian, YiBing Wu, ZhaoNing Yang, HaiFeng Jiang, Chao Chinese Acad sci Xinjiang Inst Ecol & Geog Urumqi 830011 Peoples R China Xinjiang Univ Coll Geol & Explorat Engn Urumqi 830046 Peoples R China Chinese Acad sci Grad Sch Beijing 100039 Peoples R China

The grain size composition, distribution characteristics and spatial variation of eolian sand soil on distinct positions across two longitudinal dunes and interdune areas were studied by means of conventional grain size analysis and geostatistical methods. In the study, 184 samples of eolian sand soil from the 0-30cm layer were systemically collected and measured from two longitudinal dunes and interdunes in the southern Gurbantunggut Desert. The results show that the dominant grain sizes are fine and very fine sands, and the differences of grain size compositions between the distinct geomorphologic positions are significant. The contents of clay and silt are highest on the interdune areas and lowest on the crests, and higher on the leeward slopes than on the windward slopes. The contents of very fine and fine sands are highest on the windward slopes and lowest on the crests. The contents of medium, coarse and very coarse sands are lowest on the interdune lands, and highest on the crests, and are identical on the two slopes. The coarser sizes (phi(1)) and mean sizes (Mz) for eolian sand soil all have a varying tendency from fine to coarse sizes with interdune area -> leeward slope -> windward slope -> crest, and the sorting (sigma) are poorly to well sorted. The results of geostatistical analysis reveal that phi(1), Mz and a values are moderately to strongly spatially autocorrelated. The values of the spatially correlated ranges are phi(1) < sigma < Mz. The spatial variation for these grain size parameters is significant across the longitudinal dune landscape. From the crests towards the bottom of the slope, there is a varying gradient of zonal distribution, and the gradient values on the leeward slopes are larger than sites on the windward slopes.

关键词： grain size distribution spatial variation geostatistical analysis longitudinal dune the southern Gurbantunggut Desert

Characteristics of the soil microbial population in forest land irrigated with saline water in the desert area

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Journal of Arid Land 2010年第2期2卷 107-115页

作者： Jin, ZhengZhong Lei, JiaQiang Xu, XinWen Li, ShengYu Fan, JingLong Zhao, SiFeng Chinese Acad sci Xinjiang Inst Ecol & Geog Key Lab Oasis Ecol & Desert Environm Urumqi 830011 Peoples R China Shihezi Univ Coll Agr Shihezi 832003 Peoples R China

The study of soil microbial populations and diversity is an important way to understanding the soil energy *** this study we analyzed the characteristics of soil microbial populations of the Tarim Desert Highway shelter-forest,by identifying microbial fatty acids and using methods of conventional *** results illustrated that the amount of soil microbial activity and the diversity of soil microbial fatty acid increased significantly with the plantation age of the shelter-forest;the soil microbial population was dominated by *** fatty acids of C14︰0,C15︰0,C16︰0,C17︰0,C18︰1ω9,C18︰0,C18︰2ω6 and C21︰0 were found to be dominant soil microbial fatty acids in the shelter-forest ***-cipal analysis and regression analysis showed that(1) concentrations of fatty acids of C14︰0,C16︰0 and C18︰0 could be used as indicators of total soil microbial population;(2) soil bacteria and actinomycetes populations were closely correlated with the amount of fatty acids of C15︰0 and C17︰0;and(3) soil fungi were closely correlated with the amount of fatty acids of C18︰1ω9 and C18︰2ω6.

关键词： desert shelter forest soil microbial population phospholipids fatty acid

Theoretical critical value curve and driving force formation of ecological migration in the arid land

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Chinese science Bulletin 2006年第A01期51卷 196-203页

作者： ZHU Zi’an & ZHANG Xiaolei Xinjiang institute of Ecology and geography, Chinese Academy of sciences, Urumqi 830011, China The Graduate School of the Chinese Academy of sciences, Beijing 100039, China Xinjiang Uygur Autonomous Region Development and Reform Commission, Urumqi 830002, China Chinese Acad sci Xinjiang Inst Ecol & Geog Urumqi 830011 Peoples R China Chinese Acad sci Grad Sch Beijing 100039 Peoples R China Xinjiang Uygur Autonomous Reg Dev & Reform Commis Urumqi 830002 Peoples R China

干旱陆地的易碎的 eco 环境的特征确定它骚乱抵抗的能力更低。在干旱陆地的自然荒芜的绿洲在在宽 Gobi 沙漠散布的马赛克补丁。人口分发是极大地依赖于水资源。人口与驱散的分发，简单生产和生活被描绘风格，和贫穷和遥远。生态的迁居... 详细信息

干旱陆地的易碎的 eco 环境的特征确定它骚乱抵抗的能力更低。在干旱陆地的自然荒芜的绿洲在在宽 Gobi 沙漠散布的马赛克补丁。人口分发是极大地依赖于水资源。人口与驱散的分发，简单生产和生活被描绘风格，和贫穷和遥远。生态的迁居被执行的原因躺在生态的问题。生态的降级是生态的迁居的主要驱动力。然后，驱动力的力量取决于生态的降级的度。因此，是否执行生态的移植取决于生态的降级的程度。理论上，为在干旱陆地的精明的生态的移植的批评的值曲线通过生态学的相对问题的全面研究被提出，经济等等，在干旱陆地与生态的移植经验结合了，并且基于干旱环境的特征。在这篇文章，与这条曲线，理论研究和生态的迁居的一些实践从不做作的行为和生态的移植的驱动力形成的政府行为的观点被做了。它分析活跃驱动力(因素) 和否定力量(因素) ，并且指出预定和在干旱陆地实现生态的迁居的步骤。理论曲线表达某些创见和适用性，它为为实现生态的迁居工程评估生态的降级和理论底的度提供一个量的方法。

关键词：生态迁移临界值驱动力贫瘠地

Artselenoide, a New Dimeric Guaianolide from Artemisia selengensis

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Chinese Chemical Letters 1998年第9期9卷 829-832页

作者： Hu, JF Feng, XZ Chinese Acad Med sci Inst Mat Med Dept Chem Nat Prod Beijing 100050 Peoples R China Peking Union Med Coll Beijing 100050 Peoples R China

A new dimeric guaianolide, artselenoide, was isolated from Artemisia selengensis. Its structure was elucidated by spectroscopic methods.

关键词： compositae Artemisia selengensis dimeric guaianolide artselenoide

THE　STRUCTURAL　ELUCIDATION　AND　ABSOLUTE　CONFIGURATIONS　OF　TWO　NEW　POLYOXYGEnatED　CYCLOHEXENES　FROM　UVARIA　GRANDIFLORA　ROXB．

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Chinese Chemical Letters 1996年第3期7卷 241-244页

作者： Pan, XP Yu, DQ Lee, KH BEIJING UNION MED COLL BEIJING 100050PEOPLES R CHINA UNIV N CAROLINA SCH PHARMNAT PROD LABDIV MED CHEM & NAT PRODCHAPEL HILLNC 27599 CHINESE ACAD MED sci INST MAT MEDBEIJING 100050PEOPLES R CHINA

Two new polyoxygenated cyclohexenes,named uvarigranol E (I) andF(VII),were isolated from the rhizome of Uvaria grandiflora. On the basis ofspectral analysis and chemical derivatizations, including preparation of Mosheresters,the structures of I and VII were established as IR-acetoxymethyl-l,2Sdihydroxy-3 R,6S-dibenzoyloxy-cyclohex-4-ene and IR-hydroxymethyl-l,2Sdihydroxy-3R,6S-dibenzoyloxy cyclohex-4-ene.

关键词：

Baicalin and jasminoidin effects on gene expression and compatibility in the hippocampus following focal cerebral ischemia

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Neural Regeneration Research 2011年第3期6卷 165-170页

作者： Guo, Lin Meng, Fanyun Zhang, Guodong Zhao, Jing Zhang, Zhanjun Zhou, Caixiu Wang, Zhong China Acad Chinese Med sci Inst Basic Res Clin Med Beijing 100700 Peoples R China Tianjin Univ Tradit Chinese Med Inst Acupuncture Affiliated Hosp 1 Tianjin 300193 Peoples R China Beijing Normal Univ Inst Nat Med & Chinese Med Resources Beijing 100875 Peoples R China Beijing Normal Univ Natl Key Lab Cognit Neurosci & Learning Beijing 100875 Peoples R China Tianxin Hosp Zhuzhou 412001 Hunan Peoples R China

The compound traditional Chinese medicine Qingkailing, which is an ingredient used to treat cerebral ischemia, has been limited to studies concerning single genes or single pathways. Interactions and pharmacological mechanisms of the compound ingredients （baicalin and jasminoidin） remain poorly understood. In the present study, baicalin and jasminoidin, as well as the combination, were used to separately treat mouse models of cerebral ischemia, cDNA microarray analyses of 374 cerebral ischemia-related genes were utilized to determine changes in gene-expression profiles. Arraytrack 3.40 and Ingenuity Pathway Analysis （IPA） databases were utilized to analyze changes in gene molecular functions and network path functions. Baicalin or jasminoidin alone effectively reduced infarct area, and the combination resulted in significantly better outcomes. IPA showed inhibited cell apoptosis in the baicalin group and Ca^2＋ channel regulation in the jasminoidin group. The combination of baicalin and jasminoidin activated HTR3A and F5 expression, regulated Ca^2＋ channels, activated kappa light polypeptide gene enhancer inhibitor IKBKG in B cells to control IkB kinase/nuclear factor-kB cascade, suppressed activation of inflammatory cytokine interleukin-6 receptors and activated transduction of guanine-nucleotide- binding protein （G protein） signal. Results suggested that the combination of baicalin and jasminoidin resulted in similar molecular mechanisms to baicalin and jasminoidin alone. However, novel pharmacological actions of compatibility were detected, demonstrating significant protection against cerebral ischemia.

关键词： baicalin compatibility focal cerebral ischemia/reperfusion gene network jasminoidin traditional Chinese medicine