| 栗疫病菌菌株的毒性联合与毒性分离现象的初步研究 |
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| 引用本文： | 万开元,秦岭,黄宏文.栗疫病菌菌株的毒性联合与毒性分离现象的初步研究[J].植物病理学报,2003,33(1):14-18. |
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| 作者姓名： | 万开元 秦岭 黄宏文 |
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| 作者单位： | 1 中国科学院武汉植物研究所, 武汉 430074;2 北京农学院园艺系, 北京 102206 |
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| 摘 要： | 对来自3个中国板栗居群的共18个栗疫病菌株进行单株及混合菌株的毒力评价,结果表明各单株毒力差异显著,混合菌株存在毒性联合与毒性分离现象。同一种群的组合中有64.4%为毒性联合,不同种群的组合其毒性分离率高达88%,同一种群组合的毒性联合强度比不同种群组合的毒性联合强度大,而不同种群组合的毒性分离强度比同一种群组合的毒性分离强度大。大多数组合的毒性联合或毒性分离的性状表达稳定。
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| 关 键 词： | 栗疫病菌 毒性联合 毒性分离 |
| 文章编号： | 0412-0914(2003)01-0014-05 |
| 修稿时间： | 2000年1月4日 |
A preliminary study on virulence association and dissociation among Cryphonectria parasitica isolates in China |
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| WAN Kai-yuan ,QIN Ling ,HUANG Hong-wen.A preliminary study on virulence association and dissociation among Cryphonectria parasitica isolates in China[J].Acta Phytopathologica Sinica,2003,33(1):14-18. |
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| Authors: | WAN Kai-yuan QIN Ling HUANG Hong-wen |
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| Institution: | 1 Wuhan Institute of Botany, the Chinese Academy of Sciences, Wuhan 430074, China;2 Department of Horticulture, Beijing Agricultural College, Beijing 102206, China |
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| Abstract: | Virulence on the single isolate and the two-mixed isolates of 18 Cryphonectria parasitica isolates were evaluated. The results suggested that virulence of the single isolates were significantly different from each other. Virulence association and dissociation were observed. Within the same population, 64.4% combinations of the mixed isolates were virulence associating, while between populations, 88% combinations of the mixed isolates were virulence dissociating. The degree of virulence associating of the mixed isolates from the same population was higher than that from different populations, but the degree of virulence dissociating of the mixed isolates was higher than that from the same population. In most cases, virulence association and dissociation of mixed isolates were observed repeatedly. |
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| Keywords: | Cryphonectria parasitica virulence association virulence dissociation |
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