| 稻白叶枯病菌在人工培养基上毒性降低因素研究（英文） |
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| 引用本文： | 谢关林,苗东华.稻白叶枯病菌在人工培养基上毒性降低因素研究（英文）[J].中国水稻科学,1987,1(2):118-126. |
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| 作者姓名： | 谢关林 苗东华 |
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| 作者单位： | 浙江省农业科学院，国际水稻研究所 |
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| 摘 要： | 稻白叶枯病菌在人工培养基上毒性降低受多种因素的影响。试验结果表明,营养因素对菌的毒性降低比菌的不同保存方法更为明显,在供试的6种常用培养基中,NA 和 PSA 培养基对菌的毒性降低影响较小。较短的移植间隔期和频繁的移植次数也会影响菌的毒性降低。菌对低浓度氧的敏感性可因菌系而有差异。因此认为冰冻真空干燥和低温保存对抑制菌的毒性降低是较为理想的保存办法。试验还表明粘多糖的产生与菌的毒性之间不存在一定的相关性。
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| 关 键 词： | 稻白叶枯病菌 人工培养基 毒性 |
| 收稿时间： | 1900-01-01; |
Factors of Attenuation of Virulence in Xanthomonas campestris pv.oryzae on Artificial Media |
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| Xie Guanlin T.W.Mew .Research assistant,Zhejiang Academy of Agricultural Sciences,China.
.Plant pathologist,IRRI,Philippines..Factors of Attenuation of Virulence in Xanthomonas campestris pv.oryzae on Artificial Media[J].Chinese Journal of Rice Science,1987,1(2):118-126. |
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| Authors: | Xie Guanlin TWMew Research assistant Zhejiang Academy of Agricultural Sciences China
Plant pathologist IRRI Philippines |
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| Institution: | Xie Guanlin~1 T.W.Mew~2 1.Research assistant,Zhejiang Academy of Agricultural Sciences,China.
2.Plant pathologist,IRRI,Philippines. |
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| Abstract: | Several factors affected attenuation of virulence and colony variation on artificial media.The results showed that nutritional factor was more important than storage of the culture in attenuation of virulence.NA and PSA medium supported least loss of virulence among 6 media.Shorter in- terval period and more frequent subculture on artificial media also affected attenuation of virulence The sensitivity to lower concentration of oxygen may vary with strains.It also suggest that lyophilization and keeping in deeper freezer be the appropriate methods for storage of this bacterium to have least attenuation of virulence.The experimental data revealed that there was no correlation between production of slime polysaccharide and virulence. |
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| Keywords: | Xanthomonas campestris pv oryzae Artificial media Virulence |
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