整合生物学期刊网

Plant Diversity ›› 2004, Vol. 26 ›› Issue (01): 1-3.

• 研究论文 •    

鬼针草中一个新的查耳酮甙

赵爱华 赵勤实 彭丽艳 张积霞 林中文 孙汉董   

  1. 中国科学院昆明植物研究所植物化学与西部植物资源持续利用国家重点实验室
  • 出版日期:2004-02-25 发布日期:2004-02-25

Karyotype Comparison of Populus SectTacamahaca

QI LiWang，ZHANG ShouGong，HAN SuYing，CHEN ChengBin   

  1. Laboratory of Cell Biology,Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,China
  • Online:2004-02-25 Published:2004-02-25

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摘要： 从鬼针草Bidens pilosa L.地上部分的丙酮提取物中, 分离鉴定了18个化合物，其中包括一个新的查耳酮甙类化合物(α,3,2,4'-tetrahydroxy-2'-O-β-D-glucopyranosylchalcone,2)。其它化合物分别鉴定为butein (1),okanin 4-methyl ether-3′-O-β-glucoside (3),sulfuretin (4),6,7,3',4'-tetrahydroxyaurone(5),海生菊苷(maritimein,6),(Z)-6-O-(6″-acetyl-β-D-glucopyranosyl)6,7,3',4'-tetrahydroxy-aurone(7),(Z)-6-O-(4'',6''-diacetyl-β-D-glucopyranosyl)-6,7,3',4′-tetrahydroxy-aurone(8),(Z)-6-O-(3'',4'',6''-triacetyl-β-D-glucopyranosyl)-6,7,3',4'-tetrahydroxy-aurone-(9),木犀草素(luteolin,10)，槲皮素(quercetin,11),异槲皮苷(isoquercitrin,12),芦丁(rutin,13),黄芪苷(astragalin,14),quercetin-3,4'-dimethyl ether-7-O-rutinoside(15),反式丁烯二酸(16),2-β-D-glucopyranosyloxy-1-hydroxy-trideca-3,5,7,9,11pentayne (17)和3-β-D-glucopyranosyloxy-1-hydroxy-6(E)-tetradecene-8,10,12-triyne (18).

关键词: 鬼针草, 菊科, 查耳酮, 黄酮

Abstract: The paper identified and compared the karyotypes of 10 species(varieties) of Populus sectTacamhaca.The results were as follows:Ppseudosimonii Kitag.2n=38=27m+6sm(1SAT)+4st(2SAT)+1t(1SAT);Ptrichocarpa Torr.2n=38=2M+18m(1SAT)+8sm+10st(1SAT);Pcathayana Rehd.var.Beijing 2n=38=1M+24m+6sm+7st(2SAT);Pבpopularis’ 2n=38=3M+27m+2sm(1SAT)+4st(2SAT)+2t(1SAT);Pcathayana Rehd.var.Wutai 2n=38=5M+22m+4sm+5st+2t(2SAT);Pcathayana Rehd.var.Gansulinxiaman 2n=38=2M+28m+1sm+7st(1SAT);Pcathayana Rehd.var.Qinghai 2n=38=1M+27m+3sm+6st(3SAT)+1t(1SAT);Pcathayana×Zhongqing 10 2n=38=1M+26m+4sm+5st(2SAT)+2t(2SAT);Pcathayana×Zhongqing 48 2n=38=16m+10sm(1SAT)+10st(2SAT)+2t(1SAT).The results showed definite karyotype differences among the species of Tacamhaca.The karyotypes of most species(varieties) are made of m and sm and a few with st and t chromosomes.The karyotypes of Tacamhaca were all of 2B type of Stebbins.This study provided important basic data for taxon of Populus.

Key words: Populus

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