| 我国禾谷多粘菌地理分布和生理分化研究 |
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| 引用本文： | 阮义理,邹皖和,王卉.我国禾谷多粘菌地理分布和生理分化研究[J].植物病理学报,1999,29(3):210-215. |
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| 作者姓名： | 阮义理 邹皖和 王卉 |
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| 作者单位： | 浙江省农业科学院病毒室 杭州 310021 |
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| 摘 要： | 调查我国26个省、市、自治区,93个县市,183个取样点,1 373个大、小麦根样本。根据休眠孢子出现频率(有休眠孢子样本数/总样本数)和每克麦根休眠孢子数,将我国禾谷多粘菌的分布区分为3个,多菌区包括江、浙、沪、皖、赣、湘、鄂和鲁的大部分和川、陕小部分,冀个别地区;少菌区包括豫大部和晋、甘小部或个别地区;其余地区为无菌区。分布区主要在长江、黄河和淮河中下游流域。禾谷多粘菌的分布范围比大麦黄花叶病等3种病毒病的分布更广泛。本研究还探讨了我国各地禾谷多粘菌的分离物存在生理分化现象
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| 关 键 词： | 禾谷多粘菌 地理分布 生理分化 |
THE GEOGRAPHIC DISTRIBUTION AND PHYSIOLOGICAL DIFFERENTIATION OF Polymyxa graminis IN CHINA |
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| Ruan Yili,Zou Wanhe,Wang Hui.THE GEOGRAPHIC DISTRIBUTION AND PHYSIOLOGICAL DIFFERENTIATION OF Polymyxa graminis IN CHINA[J].Acta Phytopathologica Sinica,1999,29(3):210-215. |
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| Authors: | Ruan Yili Zou Wanhe Wang Hui |
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| Institution: | Virology Laboratory, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021 |
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| Abstract: | During an investigation,1373 samples of barley or wheat roots were obtained from 183 places at 93 counties in 26 provinces in China.According to the frequency of resting spores presented (no. of samples with resting spores/no. of total samples) and the amount of resting spores in one gram of barley or wheat roots,the distribution of Polymyxa graminis was divided into three kinds of regions:regions with high amount of P.griminis, including most areas of Zhejiang, Jiangsu, Shanghai, Anhui, Jiangxi, Shandong, Hunan and Hubei,and some areas of Sichuan and Shaanxi;regions with low amount of P.graminis, including most areas of Henan,and some areas of Shanxi,Gansu;in the rest regions, P.graminis was not found.In general, P.graminis was mainly distributed in winter barley or wheat growing areas around the Middle lower reaches of Yangtze River,Yellow River and Huaihe.However,the distribution range of P.graminis was much wider than that of the three fungal transmitted barley or wheat viruses.The present study also discussed physiological differentiation in the isolates of P.graminis in China. |
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| Keywords: | Polymyxa graminis geographic distribution physiological differentiation |
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