您好，欢迎访问福建省农业科学院 机构知识库！
福建省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Invasive properties of Ralstonia solanacearum virulent and avirulent strains in tomato roots

文献类型： 外文期刊

作者： Zheng, Xuefang 1 ; Zhu, Yujing 1 ; Liu, Bo 1 ; Lin, Naiquan 2 ; Zheng, Desen 3 ;

作者机构： 1.Fujian Acad Agr Sci, Agr Bioresources Res Inst, Wusi Rd 247, Fuzhou 350003, Fujian, Peoples R China

2.Fujian Agr & Forestry Univ, Biol Control Res Inst, Fuzhou 350002, Fujian, Peoples R China

3.USDA ARS, US Hort Lab, Washington, DC 20250 USA

关键词： Cytology;Plant-pathogen interaction;Ralstonia solanacearum;Tomato

期刊名称：MICROBIAL PATHOGENESIS （ 影响因子：3.738； 五年影响因子：3.663 ）

ISSN： 0882-4010

年卷期： 2017 年 113 卷

页码：

收录情况： SCI

摘要： Ralstonia solanacearum causes bacterial wilt disease in a wide range of host plants, including tomato. To elucidate the invasion pattern of R. solanacearum, one avirulent strain, FJAT-1458, and one virulent strain, FJAT-91, were characterized according to their colonization and interaction with host in tomato roots. Both strains colonized in tomato roots. The highest colonization numbers were 1.66 x 10(8) cfu g(-1) by FJAT-91 at 5 days (d) after inoculation and 1.09 x 10(8) cfu g(-1) by FJAT-1458 at 6 d after inoculation. Infection with FJAT-91 caused tomato plant wilt with a disease index of 23.65% at 3 d after inoculation and 100% at 6 d after inoculation, and infection with FJAT-1458 did not cause plant wilt. Compared with FJAT-1458, infection with FJAT-91 reduced elongation of tomato roots, induced serious browning, and overflowed bacteria during the late stages of infection. Examination of cellular structure showed that infection with FJAT-1458 did not have obvious destructive effects on plant cells, while FJAT-91 induced a series of cytopathological changes, including swelling of mitochondria, degeneration of cytoplasm and nuclear heterochromatin, and collapse of host cells, which eventually resulted in the death of the host plant. The cytopathological changes appeared from the second to the fourth disease stages.

  • 相关文献

[1]Relationship Between Ralstonia solanacearum Diversity and Severity of Bacterial Wilt Disease in Tomato Fields in China. Zheng, Xue-fang,Lin, Nai-quan,Zheng, Xue-fang,Zhu, Yu-jing,Liu, Bo,Zhou, You,Che, Jian-mei. 2014

[2]Growth and pathogenicity characteristics of Ralstonia solanacearum strain RS1100 in long-term stationary phase culture. Zhu, Y. -J.,Xiao, R. -F.,Liu, B.. 2010

[3]Rhizocompetence and antagonistic activity towards genetically diverse Ralstonia solanacearum strains - An improved strategy for selecting biocontrol agents. Xue, Qing-Yun,Li, Shi-Mo,Yang, Yang,Guo, Jian-Hua,Xue, Qing-Yun,Ding, Guo-Chun,Smalla, Kornelia,Li, Shi-Mo,Lan, Cheng-Zhong.

[4]Rapid differentiation of Ralstonia solanacearum avirulent and virulent strains by cell fractioning of an isolate using high performance liquid chromatography. Zheng, Xuefang,Lin, Naiquan,Zheng, Xuefang,Zhu, Yujing,Liu, Bo,Yu, Qian.

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：福建省农业科学院

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