摘要
植物寄生线虫(plant parasitic nematode,PPN)是一类重要的植物病原物,它们分布广泛,适应性强,通过与寄主植物建立长期、稳定的寄生关系对粮食作物、园艺作物以及森林植物构成严重危害。其中,根结线虫(root-knot nematode,RKN)和孢囊线虫(cyst nematode,CN)是影响最大研究最多的2类定居型植物内寄生线虫,其侵染方式、取食细胞的形成及繁殖方式等存在很多差异,导致这两种PPNs在侵染植物后会对寄主产生多种不同的影响。近年来在线虫抗病基因克隆、效应蛋白作用机制、寄主响应等方面取得了大量研究进展。本文将对CNs和RKNs与植物互作的机理进行概括总结,主要从寄主抗病基因、线虫分泌蛋白以及植物激素响应3个方面侧重比较CNs和RKNs之间存在的差异,并对相关理论研究结果在线虫防治中的潜在应用进行展望。
Plant-parasitic nematode(PPN)is an important class of plant pathogens.They are widely distributed and highly adapted for parasitism by establishing a long-term and stable relationship with their hosts,which can cause serious damages to food crops,horticultural crops and forestry.Among them,root-knot nematode(RKN)and cyst nematode(CN)are the most economically important and best-studied endoparasites.The differences between RKNs and CNs during their infection,feeding cell formation and reproduction lead to the varied host responses to host plants under nematode infection.Substantial research progress has been achieved in the cloning of nematode disease resistance genes,together with the massive study of effector proteins and host responses.This review summarizes recent progress regarding to the molecular basis of plant-nematode interaction,mainly focusing on three aspects including host disease-resistant genes,nematode secretions,and plant hormone responses,with emphasis on the differences between CN and RKN.The review also discusses the potential application prospect of the knowledge derived from the theoretical research in nematode control.
作者
邓苗苗
郭晓黎
DENG Miao-miao;GUO Xiao-li(State Key Laboratory of Agricultural Microbiology,Huazhong Agricultural University,Wuhan 430070)
出处
《生物技术通报》
CAS
CSCD
北大核心
2021年第7期25-34,共10页
Biotechnology Bulletin
基金
国家自然科学基金项目(31772148)
校自主科技创新基金(2021ZKPY015)。
关键词
根结线虫
孢囊线虫
抗病基因
效应蛋白
激素
root-knot nematode
cyst nematode
diseaseesistant gene
effector
hormone
