| 不同条件下植物病原真菌对链霉菌702的敏感性研究 |
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| 引用本文： | 张慧雯,涂晓赟,陈玲,孙宇辉,涂国全.不同条件下植物病原真菌对链霉菌702的敏感性研究[J].安徽农业科学,2007,35(32):10358-10360. |
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| 作者姓名： | 张慧雯 涂晓赟 陈玲 孙宇辉 涂国全 |
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| 作者单位： | 江西农业大学生物科学与工程学院,江西南昌,330045 |
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| 基金项目： | 江西省自然科学基金项目(项目号:0630013) |
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| 摘 要： | 目的]研究不同条件下植物病原真菌对链霉菌702的敏感性变化。方法]以水稻纹枯病菌、小麦赤霉病菌和烟草赤星病菌为供试菌,在不同氮(N)、磷(P)、钾(K)水平和不同温度条件下观察3种植物病原真菌对链霉菌702的敏感性变化。结果]随着N水平的提高,纹枯病菌菌落直径生长速度减缓,气生菌丝增加,而赤霉病菌与赤星病菌的菌丝生长变化不明显。随N含量的增加,702对3种病菌的抑制率逐渐下降,随着P含量的增加,702对供试菌的抑制率显著增加,随着K含量的增加,702对供试菌的抑制率变化差异不大。当培养温度分别在30、25、25℃时,链霉菌702对水稻纹枯病菌、小麦赤霉病菌和烟草赤星病菌的抑制率最高。结论]该研究为链霉菌702有效合理地应用及更好的防治植物病原菌提供了科学依据。
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| 关 键 词： | 链霉菌702 植物病原真菌 敏感性 |
| 文章编号： | 0517-6611（2007）32-10358-03 |
| 修稿时间： | 2007-03-09 |
Study on the Sensibility of Plant Pathogenic Fungi to Streptomyces 702 under Different Conditions |
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| ZHAGN Hui-wen et al.Study on the Sensibility of Plant Pathogenic Fungi to Streptomyces 702 under Different Conditions[J].Journal of Anhui Agricultural Sciences,2007,35(32):10358-10360. |
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| Authors: | ZHAGN Hui-wen |
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| Institution: | College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, Jiangxi 330045 |
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| Abstract: | Objective] The purpose was to study the sensibility change of plant pathogenic fungi to Streptomyces 702 under different conditions.Method] With rice sheath blight fungus,wheat scab pathogen and tobacco brown spot pathogen as tested strains,the sensibility changes of 3 kinds of plant pathogenic fungi to Streptomyces 702 under different nitrogen and phosphorous levels and temperature conditions were observed.Result] Along with nitrogen level increased,the growth speed of Rhizoctonia solania colony diameter was slowed,the aerial mycelium was increased.But the changes of mycelium growth of Fusarium graminearum Schwabe and Alternaria alternate Keissler were not obvious.The restrain rate of Streptomyces 702 against the 3 tested strains gradually decreased along with nitrogen content increasing,significantly increased along with phosphorous content increasing,and had little change difference along with potassium content increasing.When the cultivation temperatures were at 30,25 and 25 ℃,the restrain rates of Streptomyces 702 against rice sheath blight fungus,wheat scab pathogen and tobacco brown spot pathogen were highest.Conclusion] The research provide scientific basis for applying Streptomyces 702 effectively and reasonably and controlling plant pathogenic fungi better. |
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| Keywords: | Streptomyces 702 Plant pathogenic fungi Sensibility |
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