玉米根系分泌物的分离鉴定及典型分泌物的化感效应  

Identification of root exudation of Zea mays L. and allelopathy of 1,2-benzenedicarboxylic acid

作　　者：柴强[1] 冯福学[1] 

机构地区：[1]甘肃农业大学农业生态工程研究所,甘肃兰州730070

出　　处：《甘肃农业大学学报》2007年第5期43-48,共6页Journal of Gansu Agricultural University

基　　金：甘肃省中青年基金(3YS061-A25-022);国家自然科学基金(30170547);甘肃农业大学创新基金(GAU-CX0502)资助

摘　　要：根系分泌物是化感物质的重要来源之一,利用C2Cl2提取了水培35 d玉米幼苗的根系分泌物,并通过气相色谱和质谱联用技术(GC-MS)进行了分离鉴定,对相对丰度较高的分泌物邻苯二甲酸的生物学效应通过发芽试验进行了测试.结果表明,玉米幼苗的根分泌物主要包括烃类、苯、噻唑、酸、酮、酰胺、酯、醇和酚;根分泌物邻苯二甲酸是一种自毒作用强于他感作用的化感物质.Root exudation is one of the most important resources of allelochemical. In this study,the root exudation of Zea mays L. seedlings,which were cultivated in liquid,was extracted with C^C12 35 d ays after germination,and was identified by the way of gas chromatography-mass spectrometry （GC-MS）. At the same time, the biological characteristics of the typical exudation 1,2- benzenedicarboxylic acid was tested through germination experiment. The results indicated that the component of the exudation mainly included hydrocarbon, benzene, thiazole, organic acid, ketone, arnide, grease, mellow and phenol etc. The typical exudation 1,2- benzenedicarboxylic acid effect on itself than on wheat and pigeonpea. as one kind of allelochemical showed stronger allelopathic

关 键 词：根系分泌物 化感作用 玉米 邻苯二甲酸 GC-MS 

分 类 号：S513.01[农业科学—作物学]