| 对噻枯唑具有抗性的水稻白叶枯病菌菌株的性质 |
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| 引用本文： | 周明国,马忠华,党香亮,王建新,叶钟音.对噻枯唑具有抗性的水稻白叶枯病菌菌株的性质[J].植物保护学报,1997,24(2):155-158. |
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| 作者姓名： | 周明国 马忠华 党香亮 王建新 叶钟音 |
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| 作者单位： | 南京农业大学植物病原微生物研究所，南京农业大学植物病原微生物研究所，南京农业大学植物病原微生物研究所，南京农业大学植物病原微生物研究所，南京农业大学植物病原微生物研究所 南京 210095，南京 210095，南京 210095，南京 210095，南京 210095 |
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| 基金项目： | 国家“八五”攻关课题，EC国际合作课题9185005CN |
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| 摘 要： | 对田间和室内分别筛选的抗噻枯唑的水稻白叶枯病菌菌株性质研究发现:室内筛选的抗药菌株在水稻上失去致病性,而田间抗药菌株在离体下则不表现抗药性;抗噻枯唑的菌株对敌枯唑表现交互抗性,对叶枯净不表现交互抗性;抗性菌株与敏感菌株混合接种于无药水稻上发现,抗性菌株的竞争力稍低于敏感菌株;供试的抗性菌株在无药平板上转移6代后,抗性仍很稳定,但在无药的水稻上反复接种、分离4代后,抗性水平有所下降。
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| 关 键 词： | 水稻白叶枯病菌 噻枯唑 杀细菌剂抗药性 |
CHARACTERS OF RESISTANT ISOLATES OF XANTHOMONAS ORYZAE TO SAIKUZUO |
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| Zhou Mingguo,Ma Zhonghu,Dang Xiangliang,Wang Jianxin and Ye Zhongyin.CHARACTERS OF RESISTANT ISOLATES OF XANTHOMONAS ORYZAE TO SAIKUZUO[J].Acta Phytophylacica Sinica,1997,24(2):155-158. |
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| Authors: | Zhou Mingguo Ma Zhonghu Dang Xiangliang Wang Jianxin and Ye Zhongyin |
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| Institution: | Plant Pathogen Research Institute, Nanjing Agri. Univ., Nanjing,Plant Pathogen Research Institute, Nanjing Agri. Univ., Nanjing,Plant Pathogen Research Institute, Nanjing Agri. Univ., Nanjing,Plant Pathogen Research Institute, Nanjing Agri. Univ., Nanjing and Plant Pathogen Research Institute, Nanjing Agri. Univ., Nanjing |
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| Abstract: | The characters of resistant isolates of X. oryzae selected from lab. of field to saikuzuo,which was also called chuanhua-018,were studied in this research. The lab. resistant mutants were not pathogenic on rice,and the field resistant isolates were not less sensitive to saikuzuo in vitro. These strains showed cross-resistance to the homologue bactericide dikuzuo(TF-128),but not to phenazine oxide. The competition ability of the field resistant was lower than that of sensitive isolates. The resistance of these resistant isolates was heritable and stable after 6 cycles of subculture on the bactericide-free medium, but the resistance level of field resistant isolates decreased slightly after they were inoculated on rice for 4 generations. |
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| Keywords: | Xanthomonas oryzae saikuzuo bactericide-resistance |
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