| 颉颃细菌GXG-2-2的菌株鉴定及其对植物病原菌的颉颃作用 |
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| 引用本文： | 高晓岗,安德荣,全鑫,马晓东.颉颃细菌GXG-2-2的菌株鉴定及其对植物病原菌的颉颃作用[J].西北农业学报,2007,16(6):195-198. |
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| 作者姓名： | 高晓岗 安德荣 全鑫 马晓东 |
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| 作者单位： | 西北农林科技大学植保学院,陕西省农业分子生物学重点实验室,陕西杨凌,712100 |
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| 基金项目： | 教育部长江学者和创新团队发展计划 |
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| 摘 要： | 从枯草中分离筛选获得的颉颃细菌GXG-2-2被鉴定为枯草芽孢杆菌。该菌有很强的分泌胞外蛋白酶的能力。于发酵液中加入60%饱和度的（NH4）2SO4沉淀所得的蛋白粗液对多种植物病原菌有强烈的抑制作用。例如稻瘟病菌（Pyricularia grisea）、小麦赤霉病菌（Fusarium graminearum）、烟草赤星病菌（Alter-naria alternata）、大白菜软腐病菌（Erwinia carotovora subsp.carotovora）等。
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| 关 键 词： | 枯草芽孢杆菌 鉴定 植物病原菌 颉颃作用 |
| 文章编号： | 1004-1389（2007）06-0195-04 |
| 收稿时间： | 2007-03-14 |
| 修稿时间： | 2007-07-15 |
Identification of Strain GXG-2-2 and Its Inhibition against Plant Pathogen |
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| GAO Xiao-gang,AN De-rong,QUAN Xin and MA Xiao-dong.Identification of Strain GXG-2-2 and Its Inhibition against Plant Pathogen[J].Acta Agriculturae Boreali-occidentalis Sinica,2007,16(6):195-198. |
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| Authors: | GAO Xiao-gang AN De-rong QUAN Xin and MA Xiao-dong |
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| Institution: | College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A & F University, Yangling Shaanxi 712100, China;College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A & F University, Yangling Shaanxi 712100, China;College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A & F University, Yangling Shaanxi 712100, China;College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A & F University, Yangling Shaanxi 712100, China |
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| Abstract: | The antagonistic bacterial strain GXG-2-2 isolated and screened from withered grass was identified as Bacillus subtilis. It has a property of strong producing extracelluar proteinase. A crude antagonistic preparation was obtained by adding ammonium sulfate to the fermented liquid of B. subtilis GXG-2-2 and displayed strong antagonistic activity to various plant pathogenic fungi and bacteria. Such as Fusarium graminearum, Alternaria alternate, Alternaria alternate, Erwinia. carotovora. subsp, carotovora. |
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| Keywords: | Bacillus subtilis Identification Pathogen Antagonistic activity |
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