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当前位置: 首页 > 文章 > 苹果早期落叶病广谱拮抗菌株的筛选、鉴定与抑制作用研究 中国农学通报 2011,27 (16) 292-296
Position: Home > Articles > Isolation,Identification and Antagonistic Activity of Biocontrol Strain against Apple Early Defoliation Disease Chinese Agricultural Science Bulletin 2011,27 (16) 292-296

苹果早期落叶病广谱拮抗菌株的筛选、鉴定与抑制作用研究

作  者：
陈亮;宋鹏;陈五岭;惠明
单  位：
河南工业大学生物工程学院;西北大学生命科学学院;河南科技大学农学院
关键词：
苹果早期落叶病;斑点落叶病;褐斑病;鉴定;抑制作用
摘  要：
采用平板对峙法、平皿叶片法,从苹果树根际土壤样品中分离筛选得到7株苹果早期落叶病广谱拮抗菌株,其中菌株BS24对苹果早期落叶病主要病害斑点落叶病和褐斑病的病原菌拮抗效果最佳,抑菌带宽度分别为9.5mm、9.2mm。综合菌株形态特征、生理生化特征及16S rDNA序列分析,将其鉴定为枯草芽孢杆菌(Bacillus subtilis)。试验表明菌株BS24无细胞培养滤液可显著抑制苹果早期落叶病主要病原菌的菌丝生长和孢子萌发。菌株抑菌谱较广,对苹果其他几种病害如灰斑病、圆斑病、轮斑病、腐烂病、轮纹病、炭疽病等的病原菌均有明显拮抗效果。菌株BS24具有良好的苹果早期落叶病生防应用的潜力。
译  名：
Isolation,Identification and Antagonistic Activity of Biocontrol Strain against Apple Early Defoliation Disease
作  者：
Chen Liang 1,Song Peng 2,Chen Wuling 3,Hui Ming 1 (1 College of Bioengineering,Henan University of Technology,Zhengzhou 450001;2 College of Agriculture,Henan University of Science and Technology,Luoyang Henan 471003;3 College of Life Sciences,Northwest University,Xi ' an 710069)
关键词：
apple early defoliation disease;Alternaria alternata f.sp.Mali;Marssonina coronaria (Ell Et Davis) Davis;identification;antagonistic activity
摘  要：
7 isolates with broad-spectum antagonistic activity against Apple Early Defoliation Disease were screened from 124 isolates.Strain BS24 was the most effective one with the width of inhibition zone 9.5 mm and 9.2 mm against Alternaria alternata f.sp.Mali and Marssonina coronaria (Ell Et Davis) Davis,and was identified as Bacillus subtilis.Cell-free culture filtrate could also strongly inhibit the mycelial growth and conidia germination of Alternaria alternata f.sp.Mali and Marssonina coronaria (Ell Et Davis) Davis.Strain BS24 had broad-spectrum angonistic activity against several other diseases of apple such as Phyllosticta pirina,Phyllositic solitaria,Alternaria Mali,Bolyosphoma berengeriana,Physalospora piricola and Glanerella cingulata.Strain BS24 had great potential of application in the field control of Apple early defoliation disease.

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