植物病原物致病基因及无毒基因的研究进展  

Progress on Pathogenicity Genes and Avirulence Genes of Plant Pathology

作　　者：刘宁[1] 胡景辉[1] 金保伟 

机构地区：[1]河北省农林科学院农业信息与经济研究所,河北石家庄050051 [2]河北博嘉农业有限公司,河北石家庄050081

出　　处：《华北农学报》2013年第S1期50-53,共4页Acta Agriculturae Boreali-Sinica

摘　　要：致病基因是在病原物侵染植物的过程中决定与植物建立寄生关系和破坏植物正常生理功能的基因,致病基因调控了对植物趋性、吸附、侵入、定殖、扩展、破坏寄主、和显症等一系列病理学过程。无毒基因编码的直接或间接产物与抗病基因编码的直接或间接产物相互识别诱导植物过敏性坏死反应和其它的寄主抗性反应。对致病基因及无毒基因的深入研究,有利于病原物与寄主相互作用的研究,从而为制定更为有效的病害防治措施提供有力的依据.本研究就致病基因和无毒基因的特点及表达调控方面的研究进行了综述。Plant pathogenic genes in the process of pathogen determine the infection of the pathogenic genes with a parasitic plant and plant damage normal physiological function ,the regulation of plant taxis ,adsorption ,inva-sion,colonization,expansion,destruction of the host,realistic models of pathology and significant process .Recogni-tion of products encoded directly or indirectly by avirulence genes with products encoded directly or indirectly by re -sistance gene induced hypersensitive reactions and other necrosis host resistance response , Further study on the pathogenic gene and avirulence gene ,facilitates the study of pathogen host interaction ,so as to provide evidence for effective disease control measures .Avirulence genes ,pathogenicity genes and gene expression and regulation charac-teristics of the study were reviewed in this study .

关 键 词：无毒基因 致病基因 病原物 

分 类 号：S432.4[农业科学—植物病理学]