| 中国南方水稻条斑病菌小种分化研究 |
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| 引用本文： | 郭亚辉,许志刚,胡白石,沈秀萍,陈志谊,刘永峰.中国南方水稻条斑病菌小种分化研究[J].中国水稻科学,2004,18(1):83-85. |
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| 作者姓名： | 郭亚辉 许志刚 胡白石 沈秀萍 陈志谊 刘永峰 |
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| 作者单位： | 1.南京农业大学 植物保护学院， 江苏 南京 210095;2.邯郸农业高等专科学校， 河北 邯郸 057150;3.江苏省农业科学院 植物保护研究所， 江苏 南京 210014 |
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| 基金项目： | 高校博士点基金资助项目 (B93 0 3 )，国家自然科学基金资助项目 |
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| 摘 要： | 采用针刺接种的方法，在水稻孕穗期的剑叶上接种测定了国内南方稻区细菌性条斑病菌62个菌株的致病力。根据病菌与鉴别品种互作反应和亲和性的差异，将供试条斑病菌株区分为6个小种。大多数条斑病菌株与鉴别品种的互作反应表现为弱互作模式，部分菌株与品种间存在强互作关系.
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| 关 键 词： | 水稻条斑病菌 水稻条斑病 致病力 鉴别品种 小种 |
| 文章编号： | 1001-7216(2004)01-0083-03 |
| 收稿时间： | 1900-01-01; |
Virulence Differentiation of Xanthomonas oryzae pv.Oryzicola in Southern Region of China |
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| GUO Ya-hui ,XU Zhi-gang ,HU Bai-shi,SHEN Xiu-ping,CHEN Zhi-yi,LIU Yong-feng.Virulence Differentiation of Xanthomonas oryzae pv.Oryzicola in Southern Region of China[J].Chinese Journal of Rice Science,2004,18(1):83-85. |
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| Authors: | GUO Ya-hui XU Zhi-gang HU Bai-shi SHEN Xiu-ping CHEN Zhi-yi LIU Yong-feng |
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| Institution: | （;1.College of Plant Protection; Nanjing Agricultural University; Nanjing 210095; China; E-mail:ms_ gyh5095_ cn@sina.com;2.Handan Agricultural College; Handan 057150;3.Plant Protection Institute; Jiangsu Academy of Agricultural Sciences; Nanjing 210014; China） |
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| Abstract: | The virulence differentiation of 62 isolates of X. oryzae pv. oryzicola collected from different areas in southern China were identified based on strain-cultivar interaction by using 28 varieties with different resistance genes. Flag leaves at booting stage were inoculated with selected strains by needle puncture. It showed that the virulence of strains were differentiated distinctly. Weak interaction patterns were found mainly between bacterial isolates and rice varieties, but there were specific interaction significantly. It was suggested that the X.oryzae pv. oryzicola could be divided into six race groups, the interaction patterns on six differential varieties were RRRRRS, RRRRSS, RRRSSS, RRSRSS, RRSSSS, and RSSSSS. |
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| Keywords: | Xanthomonas oryzae pv oryzicola rice streak virulence differential variety race |
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