您好，欢迎访问江苏省农业科学院 机构知识库！
江苏省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Infection processes of Ustilaginoidea virens during artificial inoculation of rice panicles

文献类型： 外文期刊

作者： Hu, Maolin 1 ; Luo, Laixin 1 ; Wang, Shu 3 ; Liu, Yongfeng 4 ; Li, Jianqiang 1 ;

作者机构： 1.China Agr Univ, Dept Plant Pathol, Key Lab Plant Pathol, Minist Agr, Beijing 100193, Peoples R China

2.BERC SPH, BKL SDTC, Beijing 100193, Peoples R China

3.Liaoning Acad Agr Sci, Inst Plant Protect, Shenyang 110161, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing 210014, Peoples R China

关键词： Ustilaginoidea virens;Artificial inoculation;Infection process;Rice panicles

期刊名称：EUROPEAN JOURNAL OF PLANT PATHOLOGY （ 影响因子：1.907； 五年影响因子：2.022 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Ustilaginoidea virens is a ubiquitous plant pathogen that causes rice false smut disease, one of the most destructive diseases of rice (Oryza sativa L.) production. However, data concerning the effect of inoculation on disease development and the infection process of this pathogen are not comprehensive. In this study, the developmental processes of U. virens in rice panicles were characterized using an enhanced green fluorescent protein (EGFP) labelled strain. A mixture of hyphae and conidia of U. virens was used to inoculate rice panicles by leaf sheath injection during the booting stage of rice plants grown in a greenhouse. The panicles were assessed to determine the relationship between artificial inoculation and disease occurrence. Increasing volumes of inocula (0.2, 0.5, 1, and 2 ml of a mixture of hyphae-fragment and 2 x 10(6) conidia/ml suspension) caused more severe infections, and small differences were also observed for the different inoculation sites at the base, apex and mid-point of rice panicles. The optimum inoculation condition was 1-2 ml inoculum injected into the mid-point of rice panicles. Spikelet samples were collected as the disease progressed and observed by confocal laser scanning microscopy and scanning electron microscopy. The images collected showed that the primary site of U. virens colonization was at the base of the filaments with the inner spikelets becoming infected by hyphae at 24 h post inoculation (hpi). The accumulation of hyphae reached its highest level at 168 hpi, before the rice heading stage, as the infection extended upward from basal filaments to the anther apex, and then enclosed all the floral organs to produce a velvety smut ball.

  • 相关文献

[1]Microscopic observations of strawberry plant colonization by a GFP-labelled strain of Fusarium oxysporum f. sp. fragariae. Yuan, Hongbo,Ling, Xitie,Liu, Tingli,Chen, Tianzi,Yang, Yuwen,Yao, Shu,Zhang, Baolong.

[2]INFECTION OF GREEN FLUORESCENCE PROTEIN-TAGGED FUSARIUM GRAMINEARUM ON WHEAT AND BARLEY SPIKES. Lu, Wei-zhong,Ma, Hong-xiang,Van De Lee, Theo,Dufresne, Marie,Liu, Tai-guo,Yu, Da-zhao.

[3]Low-affinity iron transport protein Uvt3277 is important for pathogenesis in the rice false smut fungus Ustilaginoidea virens. Zheng, Meng-ting,Ding, Hui,Huang, Lei,Wang, Ya-hui,Yu, Mi-na,Zheng, Rui,Yu, Jun-jie,Liu, Yong-feng,Zheng, Meng-ting,Ding, Hui,Huang, Lei,Liu, Yong-feng.

[4]Survey and analysis of simple sequence repeats in the Ustilaginoidea virens genome and the development of microsatellite markers. Yu, Mina,Yu, Junjie,Li, Huanhuan,Wang, Yahui,Yin, Xiaole,Bo, Huiwen,Ding, Hui,Zhou, Yuxin,Liu, Yongfeng,Yu, Mina,Liu, Yongfeng,Bo, Huiwen,Ding, Hui.

[5]Comparative transcriptome analysis of fruiting body and sporulating mycelia of Villosiclava virens reveals genes with putative functions in sexual reproduction. Yu, Jun-Jie,Yu, Mi-Na,Nie, Ya-Feng,Yin, Xiao-Le,Zhao, Jie,Wang, Ya-Hui,Ding, Hui,Qi, Zhong-Qiang,Du, Yan,Liu, Yong-Feng,Sun, Wen-Xian,Sun, Wen-Xian,Huang, Li.

[6]Identification of pathogenicity-related genes in the rice pathogen Ustilaginoidea virens through random insertional mutagenesis. Yu, Mina,Yu, Junjie,Hu, Jiankun,Huang, Lei,Wang, Yahui,Yin, Xiaole,Nie, Yafeng,Meng, Xiangkun,Wang, Weiduo,Liu, Yongfeng,Hu, Jiankun,Huang, Lei.

[7]Epiphytic colonization of Ustilaginoidea virens on biotic and abiotic surfaces implies the widespread presence of primary inoculum for rice false smut disease. Guo, X. -Y.,Li, Y.,Li, L.,Xu, Y. -J.,Zhao, J. -Q.,Wang, W.,Guo, X. -Y.,Xiong, H.,Huang, F.,Liu, Y. -F.,Yu, J. -J..

[8]Differential expression profiling of the early response to Ustilaginoidea virens between false smut resistant and susceptible rice varieties. Han, Yanqing,Zhang, Kang,Yang, Jun,Zhang, Nan,Fang, Anfei,Zhang, Yong,Sun, Wenxian,Han, Yanqing,Zhang, Kang,Yang, Jun,Zhang, Nan,Fang, Anfei,Zhang, Yong,Sun, Wenxian,Liu, Yongfeng,Chen, Zhiyi,Hsiang, Tom. 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：江苏省农业科学院

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