欢迎访问《中国农学通报》,

中国农学通报 ›› 2020, Vol. 36 ›› Issue (17): 129-133.doi: 10.11924/j.issn.1000-6850.casb19020075

所属专题: 园艺

• 植物保护·农药 • 上一篇    下一篇

菜薹根肿病显微观察及抗病性鉴定

吴艺飞, 丁茁荑(), 周晓波, 欧阳娴, 张竹青   

  1. 湖南省蔬菜研究所/湖南省蔬菜工程技术研究中心,长沙 410125
  • 收稿日期:2019-02-27 修回日期:2019-04-25 出版日期:2020-06-15 发布日期:2020-06-09
  • 通讯作者: 丁茁荑
  • 作者简介:吴艺飞,女,1982年出生,助理研究员,硕士,主要从事十字花科蔬菜遗传育种方面的工作。通信地址:410125 湖南省长沙市芙蓉区马坡岭农科院蔬菜研究所,Tel:0731-84691742,E-mail:406522996@qq.com。
  • 基金资助:
    湖南省农业科学院科技创新项目“菜薹抗根肿病种质资源的创制及CR基因定位”(2017JC23);湖南省重点研发计划“冬闲田叶类蔬菜提质增效关键技术研究与示范”(018NK2022);湖南省农业科学院科技创新项目“湖南渡淡蔬菜产业化关键技术研究”(2018ZD03);湖南省自科基金项目“菜薹花茎蜡粉性状的遗传分析及主效基因定位”(2019JJ0331);国家大宗蔬菜产业技术体系长沙综合试验站(CARS-23-G-29)

Root Swelling Disease of Brassica campestris: Microscopic Observation and Disease Resistance Identification

Wu Yifei, Ding Zhuoyi(), Zhou Xiaobo, Ouyang Xian, Zhang Zhuqing   

  1. Hunan Vegetable Research Institute/Hunan Vegetable Research and Development Center, Changsha 410125
  • Received:2019-02-27 Revised:2019-04-25 Online:2020-06-15 Published:2020-06-09
  • Contact: Ding Zhuoyi

摘要:

为了筛选出一批优异的菜薹抗根肿病材料。以8份不同品种的菜薹为试材,3个不同来源的4号生理小种为菌源,采用菌土法对其进行了苗期抗病性鉴定。结果表明:各菌源的致病力差异极大,菌源C致病力最强,菌源B次之,菌源A致病力最弱。综合3种菌源抗性表现,筛选出3份抗病材料。同时表明现有的根肿病鉴别系统存在一定局限性,应完善补充新的寄主作物,以期更加准确、稳定地鉴定根肿病生理小种,推动菜薹抗病育种的研究进程。

关键词: 菜薹, 根肿病, 生理小种, 显微观察, 抗病性鉴定

Abstract:

The aim is to screen out a group of excellent Brassica campestris materials with root swelling resistance. Eight varieties of Brassica campestris were used as test materials, and three physiological race 4 of different origins were used as the bacterial sources. The disease resistance was identified by the bacterial soil method. The results show that the virulence of each bacterial source is significantly different. The pathogenicity of bacterial source C is the strongest, followed by bacterial source B, and the virulence of bacterial source A is the weakest. Three disease-resistant materials are selected based on the three bacterial pathogens. At the same time, the results indicate that there are limitations in the present identification system for root swelling disease. It is necessary to complement the new host crops in order to identify the physiological race of root swelling disease more accurately and stably, and promote the research progress of Brassica campestris disease-resistant breeding.

Key words: Brassica campestris, root swelling disease, physiological race, microscopic observation, disease resistance identification

中图分类号: