中国睡莲科植物种子胚及其营养组织的研究  

A Study on the Embryo and Its Nutritive Tissues, Endosperm and Perisperm of Nymphaeaceae in China

作　　者：孙阎[1] 张欣欣[2] 王臣[2] 刘玫[2] 刘鸣远[2] 

机构地区：[1]黑龙江大学农学院,哈尔滨150080 [2]哈尔滨师范大学,哈尔滨150025

出　　处：《植物研究》2007年第4期412-415,共4页Bulletin of Botanical Research

基　　金：黑龙江省教育厅海外学人资助项目(1055HQ025)

摘　　要：研究了中国睡莲科的3属3种即芡(Euryale ferox Salisb.)、睡莲(Nymphaea tetragona Georgi)和萍蓬草(Nuphar pumilum(Hoffm.) DC.)的胚、胚乳及外胚乳。它们的胚的共同特点是苗端发育良好,特别是胚芽具2～4枚胚芽叶,而根端滞育。三个种皆既有胚乳,又有外胚乳,但在成熟种子中作为胚的营养组织则胚乳弱育而外胚乳发达。最后对上述特点在系统发生中的意义进行了讨论。The embryo, endosperm and perisperm in 3 species, Euryale ferox Salisb. Nymphaea tetragona Geargi and Nuphar pumilum DC. of Nymphaeaceae were Studied in this paper. The common characters of embryo are the well developed shoot apex, especial the plumule with 2 - 4 plumular leaves, and the diapausing root apex. All of the 3 species have both endosperm and perisparm , but the former only remains and the latter is very rich in the mature seeds. Finally, the meaning of these characters in phylogeny were discussed.

关 键 词：芡 睡莲 萍蓬草 胚 胚乳 外胚乳 

分 类 号：S888.2[农业科学—特种经济动物饲养]