茄子/番茄嫁接植株根系分泌物对茄子黄萎病菌的化感作用  

Allelopathy of the Eggplant/Tomato Grafted Eggplants Root Exudates to Verticillium wilt (Verticillium dahllae)

作　　者：刘娜[1] 周宝利[1] 李轶修[1] 郝晶[1] 付亚文[1] 

机构地区：[1]沈阳农业大学园艺学院,沈阳110161

出　　处：《园艺学报》2008年第9期1297-1304,共8页Acta Horticulturae Sinica

基　　金：国家自然科学基金项目(30771469);国家‘863’计划项目(2004AA247010);辽宁省教育厅高等学校创新团队项目(2006T118)

摘　　要：采用番茄为砧木嫁接茄子,研究了嫁接对茄子黄萎病的化感作用,并对嫁接茄子根系分泌物中的化感物质进行了GC-MS检测。结果表明,与自根茄相比,嫁接茄子田间表现出明显的抗病性;其根系分泌物能够抑制病原菌的生长,抑制率达15.43%。进一步对各处理根系分泌物进行检测,嫁接茄根系分泌物中物质种类和相对含量与对照相比均有变化。在嫁接茄子根系分泌物中检测出特征性化学物质:咔唑类、胺类、萸类、芴类、酮类、茚醇类、腈类,烃类和酯类物质相对含量增加,而苯类、茚类物质相对含量降低。Allelopathy to Verticillium wilt （ Verticillium dates in the grafted eggplants with tomato as rootstock were dahllae） and the allelochemicals of the root exustudied. The ether extracts of the root exudates were detected by GC -MS. The results showed that a significant, strong disease resistance was found in grafted eggplants than in own root plants. The root exudates of grafted eggplants had a significant suppression to the Verticillium wilt with the inhibitory rate at 15.43%. And the dentification of the allelochemicals in root exudates of grafted eggplants indicated that the categories and the relative contents were different from the ownroot plants. The substances, such as carbazoles, azulenes, amines, fluorene and indenol, were detected only in the grafted eggplants.

关 键 词：茄子 化感作用 根系分泌物 黄萎病菌 嫁接 

分 类 号：S641.1[农业科学—蔬菜学]