| 4种荧光假单胞菌拮抗菌株对湿地松猝倒病病原菌的抑制效果 |
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| 引用本文： | 霍宪起,陈京元. 4种荧光假单胞菌拮抗菌株对湿地松猝倒病病原菌的抑制效果[J]. 东北林业大学学报, 2010, 38(9) |
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| 作者姓名： | 霍宪起 陈京元 |
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| 作者单位： | 临沂师范学院,临沂,276005;湖北省林业科学研究院 |
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| 基金项目： | 国家林业局"948"项目，湖北省国际科技合作重点项目，国家外专局项目 |
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| 摘 要： | 以湿地松猝倒病病原菌为靶标菌,测定4种荧光假单胞菌拮抗菌株对其的抑制效果及各拮抗菌株在湿地松根部的定殖能力。结果表明:Q2-87、2-79、1M1-96对湿地松猝倒病的3个病原菌均表现出一定的抑制效果,而Pf-5几乎无抑制作用。在室内防治试验中,2-79、Q2-87、Pf-5表现出一定的防病效果,但在室外均未表现出防病效果。4种拮抗菌株均可在湿地松根际定殖,但是在根部不同部位的分布并没有规律可循。在定殖过程中,各拮抗菌株在湿地松根部的菌量密度随着时间的延长而增加,在某一时刻达到峰值后数量逐渐减少。
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| 关 键 词： | 荧光假单胞菌 湿地松 猝倒病 拮抗 根际定殖 |
Inhibition Effect of Four Strains of Antagonistic Bacteria Pseudomonas fluorescens on Pathogens of Slash Pine Damping-off Disease |
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| Huo Xianqi,Chen Jingyuan. Inhibition Effect of Four Strains of Antagonistic Bacteria Pseudomonas fluorescens on Pathogens of Slash Pine Damping-off Disease[J]. Journal of Northeast Forestry University, 2010, 38(9) |
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| Authors: | Huo Xianqi Chen Jingyuan |
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| Affiliation: | Huo Xianqi (School of Life Sciences,Linyi Normal University,Linyi 276005,P.R.China),Chen Jingyuan (Hubei Academy of Forestry Sciences) |
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| Abstract: | A study was conducted to determine the inhibition effect of 4 antagonistic strains Pseudomonas fluorescens on pathogens of damping-off disease and colonization in the rhizosphere of slash pine.Results indicated that strains Q2-87,2-79 and 1M1-96 exerted obvious inhibition on three pathogenic fungi of damping-off disease of slash pine,including Rhizoctonia solani,Fusarium angustum and Alternaria alternata.In the indoor experiment,bacteria strains of 2-79,Q2-87 and Pf-5 showed certain control effects,while al... |
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| Keywords: | Pseudomonas fluorescens Slash pine Damping-off diseases Antagonising Colonization |
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