| 烟草疫霉对烟草的致病性及生理分化研究 |
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| 引用本文： | 龚龙英,郑小波.烟草疫霉对烟草的致病性及生理分化研究[J].南京农业大学学报,1993,16(4):68-72. |
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| 作者姓名： | 龚龙英 郑小波 |
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| 作者单位： | 南京农业大学植物保护学系 210014
(龚龙英，郑小波，刘翔，耿济国)，南京农业大学植物保护学系 210014(陆家云) |
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| 摘 要： | 将分离自东北，华东等１１种寄主植物上的２０个烟草疫霉（Ｐｈｙｔｏｐｈｔｈｏｒａ ｎｉｃｏｔｉａｎａｅ，等于寄生疫霉Ｐｈｙｔｏｐｈｔｈｏｒａ ｐａｒａｓｉｔｉｃａ）菌株接种６个烟草品种，测定了烟草疫霉对烟草的致病性及其生理分化。指出来自烟草的烟草疫霉菌株对烟草具较强的侵染能力，亦可以侵染黄瓜，茄子和番茄的果实，但大多数非烟草寄主来源的菌株经伤口接种亦可以侵染烟草，引起典型的症状。本研究还比较了不同的
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| 关 键 词： | 烟草疫霉 致病性 烟草 生理分化 |
STUDY ON PATHOGENICITY TO TOBACCO AND PHYSIOLOGICAL SPECIALIZATION OF PHYTOPHTHORA NICOTIANAE |
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| Gong Longyin Zheng Xiaobo Liu Xiang Geng Jiguo Lu Jiayun.STUDY ON PATHOGENICITY TO TOBACCO AND PHYSIOLOGICAL SPECIALIZATION OF PHYTOPHTHORA NICOTIANAE[J].Journal of Nanjing Agricultural University,1993,16(4):68-72. |
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| Authors: | Gong Longyin Zheng Xiaobo Liu Xiang Geng Jiguo Lu Jiayun |
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| Abstract: | Twenty isolates of Phytophthora nicotianae (Phytophthora paracitica) from 11 host plantsfrom Northeast and East China were inoculated on 6 toba(?)o cultivars to determine thier pathogenicity andphysiological specialization.Results showed that isolates originated from toba(?)o infected toba(?)o eultivarsmore easily than those from other host plants,but the latter could also infect toba(?)o and typical symptomof black shank presented when the method of wound inoculation was applied.Isolates obtained from blackshank tissue could also infcet the fruits of (?)u(?)umber,tomato and eggplant.The effect of inoculation methodson determination of pathogenicity of Pnicotianae and resistence of toba(?)o cultivars to P.nicotianae is alsoreported in this paper. |
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| Keywords: | Phytophthora nicotianae pathogenicity tobacco physiological specialization |
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