您好，欢迎访问河南省农业科学院 机构知识库！
河南省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Effect of temperature on conidial germination, mycelial growth and aggressiveness of the defoliating and nondefoliating pathotypes of Verticillium dahliae from cotton in China

文献类型： 外文期刊

作者： Xu, Fei 1 ; Yang, Long 1 ; Zhang, Jing 1 ; Guo, Xiaoping 4 ; Zhang, Xianlong 4 ; Li, Guoqing 1 ;

作者机构： 1.Huazhong Agr Univ, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China

2.Huazhong Agr Univ, Key Lab Plant Pathol Hubei Prov, Wuhan 430070, Peoples R China

3.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China

4.Huazhong Agr Univ, State Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China

关键词： Verticillium dahliae;D-pathotype;ND-pathotype;Gossypium hirsutum

期刊名称：PHYTOPARASITICA （ 影响因子：1.439； 五年影响因子：1.569 ）

ISSN： 0334-2123

年卷期： 2012 年 40 卷 4 期

页码：

收录情况： SCI

摘要： Three defoliating (D) pathotype isolates and five nondefoliating (ND) pathotype isolates of Verticillium dahliae from cotton in central China were tested for adaptation to various temperatures in conidial germination on water agar (10-33A degrees C), mycelial growth on potato dextrose agar (10-33A degrees C) and infection of cotton seedlings (Gossypium hirsutum cvs. 'E Mian 24' and 'Yin Rui 361') (25-33A degrees C). Results showed that the D-pathotype isolates adapted better than the ND-pathotype isolates to 30A degrees C for conidial germination and mycelial growth, although the isolates of the two pathotypes had the same optimum temperature of 25A degrees C. Under day/night temperatures of 25/25, 27/27 and 30/25A degrees C for 20 and 25 days, the D-pathotype isolates induced the defoliation syndrome on seedlings of the two upland cotton cultivars, whereas the ND-pathotype isolates did not induce defoliation syndrome. The values for the areas under the disease progress curve (AUDPC) and the vascular discoloration index (VDI) were higher for the D-pathotype isolates than those for the ND-pathotype isolates in each temperature treatment. Under 30/30 or 33/27A degrees C, at least two of the three D-pathotype isolates still had higher AUDPC values and/or VDI values than all the ND-pathotype isolates on E Mian 24. Therefore, the D-pathotype isolates appear more aggressive than the ND-pathotype isolates in infection of cotton. Results also showed that the cotton cultivar Yin Rui 361 was more tolerant than the cotton cultivar E Mian 24 to infection by both pathotypes of V. dahliae. This study suggests that the D-pathotype isolates can well adapt to high temperature and heavily infect cotton under 25-30A degrees C, and these features might be responsible for the rapid spread of this pathotype in central China.

  • 相关文献

[1]Inheritance of time of flowering in upland cotton under natural conditions. J. J. HAO,S. X. YU,;Q. X. MA,S. L. FAN,M. Z. SONG.

[2]Identification of early salt stress responsive proteins in seedling roots of upland cotton (Gossypium hirsutum L.) employing iTRAQ-based proteomic technique. Li, Wu,Li, Wu,Zhao, Fu'an,Fang, Weiping,Xie, Deyi,Hou, Jianan,Yang, Xiaojie,Zhao, Yuanming,Tang, Zhongjie,Nie, Lihong,Lv, Shuping. 2015

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：河南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台