三种石斛菌根形态结构及元素构成的研究  

The Form,Structure and Element Component of Mycorrhizas in Dendrobium spp.

作　　者：陈连庆[1] 裴致达[1] 韩宁林[1] 张守英[1] 

机构地区：[1]中国林业科学研究院亚热带林业研究所,浙江富阳311400

出　　处：《林业科学研究》2002年第1期96-100,共5页Forest Research

基　　金：国家自然科学基金项目 (39870 6 2 2 );浙江省自然科学基金项目 (3970 30 )部分内容

摘　　要：通过对石斛菌根解剖镜检表明 :石斛菌根是由根被、皮层、中柱组织构成 ,在皮层细胞内 ,常有菌根真菌栖居、生长 ,并呈现菌丝团结构。对石斛组培非菌根与野生石斛菌根营养元素分析表明 ,组培根N、P、K含量是菌根的 2　 5倍 ;微量元素除Zn外 ,Cu、Fe、Mn、Ca、Mg等元素含量低于菌根 2 2 %　78%。The Mycorrhizas in Dendrobium candidum , D. nobile Lindl. and D. moniliforme are composed by velamen, cortex, stele under the microscope. The germ is living and growing inside the cell of cortex as a peloton. According to the analysis for both mycorrhizas organ and nonmycorrhizas one, the contents of N,P,K in the former are about 2 5 times more than in the later, but the contents of microelment, such as Cu, Fe, Mn, Ca, Mg etc. except Zn, are lower by 22% 78%?

关 键 词：石斛 石斛菌根 形态结构 营养元素 根被 皮层 中柱 

分 类 号：S567.239[农业科学—中草药栽培] S682.31[农业科学—作物学]