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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Chemical and Genetic Study of Ligularia tongolensis,Ligularia cymbulifera,and Ligularia atroviolacea in the Hengduan Mountains of China
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Chemical and Genetic Study of Ligularia tongolensis,Ligularia cymbulifera,and Ligularia atroviolacea in the Hengduan Mountains of China

机译：横断山脉的tong桐，圆叶虎杖和黄萎tro的化学和遗传研究

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摘要

Three Ligularia species (L.tongolensis,L.cymbulifera,and L.atroviolacea) were examined with respect to the chemical composition and nucleotide sequence.Furanoeremophilanes were found to be produced in the root of all samples of the three species collected in northwest Yunnan and southwest Sichuan.Eight furanoeremophilanes were identified,two of which were new.Most of the identified furanoeremophilanes were oxygenated at 3,6,and 15-positions.The nucleotide sequence of the atpB-rbcL intergenic region was found to be essentially the same in the three species.These similarities imply that the three Ligularia species,all belonging to the section Corymbosae,are close to one another.The intra-specific diversity in the two widely distributed species in the Hengduan Mountains area,L.tongolensis and L.cymbulifera,were in contrast.Four out of 19 L.tongolensis samples contained a strongly Ehrlich-positive compound besides a number of positive compounds,and five variants of the atpB-rbcL sequence were found in these samples.In contrast,no variation was observed in 13 L.cymbulifera samples with respect to the furanoeremophilane composition or the atpB-rbcL sequence.The lack of diversity in L cymbulifera probably resulted from the uniformity of its habitat.
机译：考察了三种舌g属植物（L.tongolensis，L.cymbulifera和L.atroviolacea）的化学组成和核苷酸序列。在滇西北和云南采集的这三种物种的所有样品的根中均发现了呋喃芦荟。川西南地区共鉴定了8种呋喃金属亲和物，其中2种是新的。大多数鉴定出的呋喃金属亲和物在3、6和15位被氧合。发现atpB-rbcL基因间区域的核苷酸序列基本相同。这些相似性意味着三个属于g科的Li草属物种彼此接近。在横断山地区的两种广泛分布的物种，L.tongolensis和L.cymbulifera的种内物种多样性，在19个汤匙乳杆菌中，有四个样本中除了许多阳性化合物外，还包含强Ehrlich阳性化合物，以及atpB-rbcL序列的五个变异体。相比之下，在13个鳞翅目狼尾藻样品中，呋喃戊二烯的组成或atpB-rbcL序列没有变化。鳞翅目狼蛛缺乏多样性可能是由于其栖息地的均匀性所致。

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