| 链霉菌对玉米弯孢霉菌抑制作用的初步研究 |
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| 引用本文： | 祁碧菽,杨文香,刘大群. 链霉菌对玉米弯孢霉菌抑制作用的初步研究[J]. 河北农业大学学报, 2000, 23(3): 76-79 |
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| 作者姓名： | 祁碧菽 杨文香 刘大群 |
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| 作者单位： | 河北农业大学生物技术中心!河北保定071001(祁碧菽),河北农业大学植物病理系!河北保定071001(杨文香,刘大群) |
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| 摘 要： | 用 39株链霉菌株对玉米弯孢霉菌进行了拮抗作用的研究。结果表明 ,有 7株对玉米弯孢霉菌表现一级拮抗作用 ,15株表现二级拮抗作用 ,17株没有表现拮抗作用。其中E17-P、B17-G菌株的抑菌效果达到福美双5 μL·L-1稀释液作用的 6 0 %以上 ,并且超过了退菌特 5 μL·L-1稀释液的作用 ,是较好的具有潜力的生防菌。同时 ,所有一级拮抗菌的抑菌稳定性都好于杀菌剂对照
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| 关 键 词： | 玉米 弯孢霉菌 链霉菌 生物防治 |
| 文章编号： | 1000-1573(2000)03-0076-04 |
| 修稿时间： | 1999-12-17 |
A preliminary study on antagonism of Streptomyces spp. against Curvularia leaf spot of maize |
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| QI Bi shu ,YANG Wen xiang ,LIU Da qun. A preliminary study on antagonism of Streptomyces spp. against Curvularia leaf spot of maize[J]. Journal of Agricultural University of Hebei, 2000, 23(3): 76-79 |
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| Authors: | QI Bi shu YANG Wen xiang LIU Da qun |
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| Affiliation: | QI Bi-shu(Center of Biaeehnology,Agricultural University of Hebei, Raodiag 071001 China)YANG Wen-xiang,LIU Da-qun(Department of Plant Pathology, Algicultural University of Hebei, Baoding 071001, China) |
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| Abstract: | A new leaf spot disease of maize, mainly caused by Curvularia lunata , is becoming an important leaf disease of corn in China. Thirty nine strains of Streptomyces , antagonistic to Verticillum dahliae , were studied for their antagonistic activity against Curvularia lunata. The results indicated that 7 strains of Streptomyces showed strong inhibition against the pathogen, 15 strains Streptomyces spp. had moderate inhibition, 17 strains Streptomyces spp. provided no visible inhibition. The antagonism of strains E17-P and B17-G against the pathogen was equal to or greater than 60% of that of the fungicide controls at 10 -5 concentration . It was also observed that inhibition of strains E17-P ,B17-G, B16-P, B18-P, S3-P, B2-P and B1-GW against Curvularia lunata were more stable than fungicide controls. |
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| Keywords: | maize Curvularia leaf spot Streptomyces spp. biological control |
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