| 辣椒疫病拮抗菌的分离、筛选与评价 |
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| 引用本文： | 李美荣,刘永锋,聂亚锋,刘邮洲,罗楚平,陈志谊.辣椒疫病拮抗菌的分离、筛选与评价[J].长江蔬菜,2009(10). |
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| 作者姓名： | 李美荣 刘永锋 聂亚锋 刘邮洲 罗楚平 陈志谊 |
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| 作者单位： | 江苏农业科学院植物保护研究所,南京,210014 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，江苏省农业科学院院基金，公益性行业科研专项基金 |
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| 摘 要： | 从67份不同土样中分离得到382株细菌、264株放线分离物,通过平板时峙培养,筛选出拮抗辣椒疫霉的株,其中放线的比例较高,为44.1%;而细菌所占比例则较低,仅为8.5%.测定了抑活性较强的26株株对6种植物病原真的拮抗作用及盆栽控病效果.试验结果表明,拮抗B-YD4-6,A-NP6-7和A-GD5-2对6种植物病原真菌均有抑作用.且抑能力较强,抑圈直径为22.0～26.0 mm,抑制率达45.18%～55.56%;且该3株拮抗株对辣椒疫病的防治效果较好,21 d后的防治效果分别为65.5%,67.4%,64.5%.
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| 关 键 词： | 辣椒疫病 拮抗作用 生物防治 |
Screening and Evaluation of Antagonistic Microbes against Phytophthora capsici |
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| LI Meirong,LIU Yongfeng,NIE Yafeng,LIU Youzhou,LUO Chuping,CHEN Zhiyi.Screening and Evaluation of Antagonistic Microbes against Phytophthora capsici[J].Journal of Changjiang Vegetables,2009(10). |
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| Authors: | LI Meirong LIU Yongfeng NIE Yafeng LIU Youzhou LUO Chuping CHEN Zhiyi |
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| Institution: | Institute of Plant Protection;Jiangsu Academy of Agricultural Sciences;Nanjing 210014 |
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| Abstract: | Totally 382 bacteria and 264 actinomycetes were isolated from 67 different soil samples, and hot pepper antago- nist strains of Phytophthora were selected through paired culture, in which the ratio of actinomycetes was higher (44.1%) than that of bacteria (8.5%). Twenty-six strains with strong antibacterial activity against 6 kinds of plant pathogenic fungi and pot control effects were determined. The results showed that all of the antagonists B-YD4-6, A-NP6-7 and A-GD5-2 had antimicrobial ability to the 6 ... |
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| Keywords: | Phytophthora capsici Antagonism Biocontrol |
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