| 侧孢芽孢杆菌2-Q-9外泌抑菌物质性质 |
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| 引用本文： | 黎定军,陈武,罗宽.侧孢芽孢杆菌2-Q-9外泌抑菌物质性质[J].湖南农业大学学报(自然科学版),2007,33(4):471-474. |
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| 作者姓名： | 黎定军 陈武 罗宽 |
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| 作者单位： | 湖南农业大学,生物安全科学技术学院,湖南,长沙,410128 |
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| 基金项目： | 湖南省自然科学基金项目(BK0431)，湖南省教育厅青年项目(03B012) |
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| 摘 要： | 侧孢芽孢杆菌(Bacillus laterosporus)菌株2-Q-9分泌的抑菌物质能强烈抑制青枯病菌的3个生理小种的正常生长.为了进一步在生产上利用该抑菌物质,就该抑菌物质的性质进行了初步研究.结果表明,该抑菌物质经高温处理后性质稳定;在碱性条件下比酸性条件下稳定;对胰蛋白酶和蛋白酶K不敏感,对胃蛋白酶部分敏感;该抑菌物质可能为蛋白或多肽类物质.
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| 关 键 词： | 侧孢芽孢杆菌 外泌 抑菌物质 性质 |
| 文章编号： | 1007-1032（2007）04-0471-04 |
| 修稿时间： | 2007-04-06 |
On characteristics of the antibiotics secreted by Bacillus laterosporus strain 2-Q-9 |
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| LI Ding-jun,CHEN Wu,LUO Kuan.On characteristics of the antibiotics secreted by Bacillus laterosporus strain 2-Q-9[J].Journal of Hunan Agricultural University,2007,33(4):471-474. |
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| Authors: | LI Ding-jun CHEN Wu LUO Kuan |
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| Institution: | College of Bio-Safety Science and Technology, HNAU, Changsha 410128, China |
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| Abstract: | The antibiotics secreted by Bacillus laterosporus 2-Q-9 can strongly inhibit the growth of 3 races of Ralstonial solanacearum.In this paper,to further exploit the antibiotics in the future,its characteristics were studied.The results showed that the ability of antibiotics inhibiting 3 race of R.solanacearum is stable under high temperature,and the antibiotics is more stable in alkaline solution than in acidic solution,furthermore,its biologic activity is uninfected after treatment by proteinase K and trypsin other than pepsin.According to the experimental data,it can be deduced that the antibiotics is protein-or peptide-like antibiotics. |
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| Keywords: | Bacillus laterosporus secretion antibiotics characteristic |
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