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Lepida Acid A from Basidiomycetes Russula lepida

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Chinese Chemical Letters 1999年第4期10卷 297-298页

作者： Jian Wen TAN Ji Kai LIU Ze Jun DONG Pei Gui LIU Da Gan JI(Kunming Institute of botany, The Chinese Academy of Sciences, Kunming 650204)(department of Chemistry, Zhongshan university, Guangzhou 510275) department of Chemistry Zhongshan University Guangzhou 510275 China Kunming Institute of botany Chinese Academy of Sciences Kunming 650204 China

A new compound, lepida acid A 1, has been isolated from the fruiting bodies of Basidiomycetes Russula lepida. Its structure was elucidated by spectral methods.

关键词： Russula lepida Fr lepida acid A basidiomycetes cucurbitacin triterpenoid

A New Cyclopeptide from Brachystemma calycinum

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Chinese Chemical Letters 2000年第7期11卷 595-596页

作者： Yong Xian CHENG Jun ZHOU Ning Hua TAN Zhong Tao DING(Laboratory of Phytochemistry, Kunming Institute of botany, Academia Sinica, Kunming 650204department of Chemistry, Yunnan university, Kunming 650091) Laboratory of Phytochemistry Kunming Institute of Botany Academia Sinica

A new cyclopeptide, brachystemin A, has been isolated from the roots of Brachystemma calycinum. The structure was elucidated by spectral methods.

关键词： Brachystemma calycinum Caryophyllaceae cyclopeptide brachystemin A

Relation between seed size in different plant species and response of their seedlings to double CO_2

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Chinese Science Bulletin 1997年第4期42卷 331-333页

作者： DING Li, ZHANG Chonghao, BAI Kezhi and KUANG Tingyun1 department of Biology, Beijing Normal university, Beijing 100875, China 2. Institute of botany, Chinese Academy of Sciences, Beijing 100093, China department of Biology Beijing Normal University Beijing China Institute of botany Chinese Academy of Sciences Beijing China

ATMOSPHERIC CO2 concentration is predicted to increase to 700μL/L by the middle of the 21st century. The impacts of raising CO2 on vegetation and ecosystem have been intensively studied. It is well known that C3 species and C4 species responded much differently to double CO2. Potential enhancement of photosynthesis efficiency induced by double CO2 in C3 plants was almost 66%, but in C4 plants only 4%. The response to double CO2 in C3 species might

关键词： double CO2 seed size seedling growth percentage enhancement.

Two New Oxindole Alkaloids from Ervatamia yunnanensis

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Chinese Chemical Letters 1999年第7期10卷 575-578页

作者： Yang YU Jin Ming GAO Ji Kai LIU(department of Phytochemistry,Kunming Institute of botany. The Chinese Academy of Sciences. Kunming 650204) department of Phytochemistry Kunming Institute of Botany The Chinese Academy of Sciences

Two new oxindole alkaloids. 17-demethoxy-hydroisorhynchophylline 1 and 17-demethoxy-hydroisorhynchophylline N-oxide 2, have been isolated from the aerial parts of Ervatamin yunnanensis, and their structures were eluci... 详细信息

关键词： Ervatamia yunnanensis Tsiang Apocynaceae oxindole alkaloids

Throughfall and stemflow nutrient depositions to soil in asubtropical evergreen broadleaved forest in the Wuyi Mountains

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Journal of Environmental Sciences 1998年第4期10卷 43-49页

作者： Li Ling hao Institute of botany,Chinese Academy of Sciences,Beijing 100093,China Lin Peng department of Biology,Xiamen university,Xiamen 361005,China

A study concerning the throughfall and stemflow chemistry in the Castanopsis eyrei forest was conducted during 1993—1994. The results showed that the net throughfall nutrient fluxes showed consistent canopy effects on precipitation chemistry. In general, potassium, calcium, magnesium, sodium and sulphur were added to precipitation by foliage, whereas the canopy absorbed nitrogen and phosphorus from precipitation. In stemflow, negative net deposition occurred for phosphorus only, and the rest nutrients were added to precipitation by tree stems and branches. The total net depositions of nutrients in both throughfall and stemflow followed the sequence of potassium>calcium>sodium>magnesium>sulphur, ranging between 2 56—52 54 kg/(hm 2·a). For potassium and calcium, net throughfall was the largest pathway, and the net throughfall contribution to the total yearly nutrient return to the forest soil was 54% and 42% respectively. Although the net stemflow contribution to the total yearly nutrient return was small (between 0 and 13%), stemflow represented the largest pathway of water and nutrient input to the stemflow zone of the forest floor in the *** forest ecosystem.

关键词： throughfall stemflow nutrient deposition nutrient return Wuyi Mountains.

THE VERTICAL BELTS OF NATURAL VEGETATION PARTITIONING OF THE GUANDI MOUNTAINS BY USING ORDERED PLOT CLUSTERING,SHANXI,NORTH CHINA

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植物研究 1997年第4期17卷 95+101+105+109+97+10-95+101+105+109+97+10页

作者： Feng Zhang 1 Tieliang Shang-guan 1 Anders Telenius 2(1. department of Life Science, Shanxi university, Taiyuan 030006, P. R. China) (2. department of botany, university.of Stockholm, S-106 91 Stockholm, Sweden) 山西大学生命科学系山西太原 university.of Stockholm 瑞典

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ＴＨＥＶＥＲＴＩＣＡＬＢＥＬＴＳＯＦＮＡＴＵＲＡＬＶＥＧＥＴＡＴＩＯＮＰＡＲＴＩＴＩＯＮＩＮＧＯＦＴＨＥＧＵＡＮＤＩＭＯＵＮＴＡＩＮＳＢＹＵＳＩＮＧＯＲＤＥＲＥＤＰＬＯＴＣＬＵＳＴＥＲＩＮＧ，ＳＨＡＮＸＩ，ＮＯＲＴＨＣＨＩＮＡ⒇ＦｅｎｇＺｈａｎｇ１Ｔ...

关键词： Ordered plot clustering TWINSPAN Non-hierarchical agglomerative algorithm Vertical belt of natural vegetation Gold partitioning method Guandi Mountains Shanxi

Molecular evolution and phylogeny of the angiosperm ycf2 gene

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Journal of Systematics and Evolution 2010年第4期48卷 240-248页

作者： 1 Jin-Ling HUANG 1Gui-Ling SUN 2Da-Ming ZHANG 1(department of Biology,East Carolina university,Greenville,NC 27858,usa) 2(State Key Laboratory of Systematic and Evolutionary botany,Institute of botany,Chinese Academy of Sciences,Beijing 100093,China) departmentofBiology EastCarolinaUniversityGreenvilleNC27858USA StateKeyLaboratoryofSystematicandEvolutionarybotany InstituteofBotanyChineseAcademyofSciencesBeijing100093China

Much of the recent progress in understanding angiosperm phylogeny has been achieved using multigene or plastid genome ***,it is largely unclear what size of dataset is required to achieve sufficient *** ycf2 gene is the largest plastid gene in angiosperms and it was used as part of multigene datasets in several earlier investigations into angiosperm *** this study,we show that the ycf2 gene alone can provide a generally well-supported phylogeny that is consistent with those inferred from the most comprehensive multigene or plastid genome *** phylogenetic signal of the ycf2 gene is likely derived from the combination of its long sequence length and low rate of nucleotide *** ycf2 gene may provide a low-cost alternative to comprehensive multigene or genome datasets for investigating angiosperm relationships.

关键词： angiosperm phylogeny indel multigene dataset molecular evolution

Paeonivayin, A New Monoterpene Glycoside from Paeonia delavayi

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Chinese Chemical Letters 1999年第9期10卷 771-774页

作者： Yun Bao MA Da Gang WU Ji Kai LIU (department of Phytochemistry,Kunming Institute of botany.The Chinese Academy of Sciences.Kunming 650204) department of Phytochemistry Kunming Institute of Botany The Chinese Academy of Sciences

A new monoterpene glycoside named paeonivayin with other seven known compounds were isolated from the roots of Paeonia delavayi Franch. and their structures were determined by means of spectroscopic studies.

关键词： Paeonia delavayi Franch paeoniaceae monoterpene glycoside paeonivayin

Bamboo Plantations to Augment Pulp Production

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世界竹藤通讯 2003年第4期1卷 22-24页

作者： Dr. Shanmughavel(department of botany,Bharathiar university,Coimabtore-641 046,INDIA)

由于作为纸浆工业的原材料 ,因此竹子在非木质林产品中占有重要的位置。然而 ,过量采伐和人口增长 ,热带林的破坏以及工业原料的新需求 ,尤其是纸浆工业 ,导致竹子资源大量减少 ,目前面临锐减的形势。国家农业委员会发表的数字表明 ,198... 详细信息

由于作为纸浆工业的原材料 ,因此竹子在非木质林产品中占有重要的位置。然而 ,过量采伐和人口增长 ,热带林的破坏以及工业原料的新需求 ,尤其是纸浆工业 ,导致竹子资源大量减少 ,目前面临锐减的形势。国家农业委员会发表的数字表明 ,1980和 2 0 0 0年的需求与产出为 4 2 5 .0万t和 875 .0万t,需求与供给之间出现增长的差距。可以看出 ,只有通过人工林增长的方法和有效地利用现有的资源才能达到可持续性。

关键词：中国纸浆工业人工林竹子资源可持续发展