| 荧光假单胞杆菌P2-5菌株对小麦全蚀病的抑制作用 |
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| 引用本文： | 王刚,杨之为.荧光假单胞杆菌P2-5菌株对小麦全蚀病的抑制作用[J].植物保护,2004,30(4):32-34. |
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| 作者姓名： | 王刚 杨之为 |
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| 作者单位： | 1. 河南大学生命科学学院,开封,475001
2. 西北农林科技大学植物保护学院,杨凌,712100 |
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| 基金项目： | 河南省高校青年骨干教师资助项目 |
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| 摘 要： | 室内测定了荧光假单胞杆菌P2-5菌株对小麦全蚀病菌9826菌株的拮抗作用。结果表明,P2-5菌株对小麦全蚀病菌具有较强抑制作用,抑制效果和防治效果分别为67％和59％,高于化学杀菌剂烯唑醇(特普唑)处理的效果。研究表明P2-5菌株可以致使病菌菌丝畸变。应用双抗标记法测定了P2-5菌株在小麦根系中的定殖情况,结果表明,该菌可以在小麦根系定殖。
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| 关 键 词： | 有害生物生物防治 荧光假单胞杆菌 拮抗作用 小麦全蚀病 |
Inhibitory action of Pseudomonas fluorescens P2-5 strain to Gaeumannomyces graminis var. tritici |
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| WANG Gang;YANG Zhi-wei.Inhibitory action of Pseudomonas fluorescens P2-5 strain to Gaeumannomyces graminis var. tritici[J].Plant Protection,2004,30(4):32-34. |
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| Authors: | WANG Gang;YANG Zhi-wei |
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| Institution: | College of Life Science;Henan University;Kaifeng 475001;China;College of Plant Protection;Northwest Sci-Tech University of Agriculture and Forestry;Yangling 712100;China |
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| Abstract: | Inhibitory action of Pseudomonas fluorescens P2-5 strain to Gaeumannomyces graminis var. tritici 9826 strain was tested in the laboratory. The results showed that the inhibitory action and control efficacy were 67% and 59% , respectively. They were better than those of commonly used fungicide, diniconazole. The antifungal mechanism was that the cells of the hypha were deformed. The colonization of P2-5 was studied with dual-resistant label, which suggested that P2-5 strain could colonize in the root systems of wheat. |
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| Keywords: | biocontrol of pests Pseudomonas fluorescens inhibitory action wheat take-all root rot |
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