宽叶泽苔草萜类化学成分分析及其化学分类学意义-Journalof.PDFVIP

植 物 分 类 学 报 45 (4): 570–575 (2007) doi:10.1360/aps06086 Acta Phytotaxonomica Sinica 宽叶泽苔草萜类化学成分分析及其化学分类学意义 郑向炜 潘海韵 王玉国 陈家宽* (复旦大学生物多样性科学研究所 上海 200433) Chemical analysis of diterpenoids in Caldesia grandis and its chemotaxonomic implication * ZHENG Xiang-Wei PAN Hai-Yun WANG Yu-Guo CHEN Jia-Kuan (Institute of Biodiversity Science, Fudan University, Shanghai 200433, China) Abstract Caldesia grandis is a rare and endangered aquatic plant of the Alismataceae family. This paper first reports 43 chemical components of C. grandis based on the gas chromatography-mass spectrometry and reviews research on the chemical compositions of some closely related genera such as Alisma , Sagittaria, and Echinodorus . Their common chemical components are diterpenoids. Kaurane diterpenoids are found in Caldesia, Alisma and Sagittaria; clerodane diterpenoids in Sagittaria and Echinodorus ; and pimarene and abietene diterpenoids in Sagittaria. By the biogenesis of diterpenoids, kaurane and abietene diterpenoids represent evolutionarily derived compounds, clerodane diterpenoids are primordial, and pimarene diterpenoids are intermediate. The chemotaxonomy, karyotypical analysis and fossil records of those genera showed that Caldesia was evolutionarily closer to Alisma than to Sagittaria and Echinodorus. Possible evolution levels of Echinodorus, Sagittaria, Alisma , Caldesia in chronological order are derived. Key words Caldesia grandis, Alisma , Sagittaria, Echinodorus, diterpenoid. 摘要 宽叶泽苔草Caldesia grandis隶属泽泻科Alismataceae, 是一种珍稀濒危水生植物。其化学成分迄 今未见报道。本文利用气质联用的方