食品科学 ›› 2010, Vol. 31 ›› Issue (17): 335-339.doi: 10.7506/spkx1002-6630-201017075

• 生物工程 • 上一篇    下一篇

海洋多黏类芽孢杆菌L1-9 菌株抗菌蛋白的分离纯化及其抗菌作用

马桂珍1 , 2,王淑芳1,暴增海1 , 2,吴少杰1,夏振强1,李世东3   

  1. 1.淮海工学院 江苏省海洋生物技术重点建设实验室
    2.江苏省海洋资源开发研究院 3.中国农业科学研究院植物保护研究所
  • 收稿日期:2010-06-30 修回日期:2010-08-31 出版日期:2010-09-15 发布日期:2010-12-29
  • 通讯作者: 马桂珍 E-mail:guizhenma@sohu.com,malan2@sina.com
  • 基金资助:

    江苏省自然科学基金项目(BK2009165);连云港市科技局农业攻关项目(CN0825);
    农业部生物防治重点开放实验室开放课题(KLBC-09-01);江苏省海洋生物技术重点建设实验室开放课题(HS08009)

Isolation, Purification and Biological Activity Assessment of an Antimicrobial Protein from Marine Paenibacillus polymyxa Strain L1-9

MA Gui-zhen1,2,WANG Shu-fang1,BAO Zeng-hai1,2,WU Shao-jie1,XIA Zhen-qiang1,LI Shi-dong3   

  1. 1. Jiangsu Key Laboratory of Marine Biotechnology, Huaihai Institute of Technology, Lianyungang 222005, China;2. Jiangsu
    Marine Resources Development Research Institute, Lianyungang 222005, China;3. Plant Protection Institute of the Chinese
    Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2010-06-30 Revised:2010-08-31 Online:2010-09-15 Published:2010-12-29
  • Contact: MA Gui-zhen E-mail:guizhenma@sohu.com,malan2@sina.com

摘要:

通过硫酸铵分级沉淀、DEAE Sepharose Fast Flow 柱层析、Sephadex G-200 柱层析,以小麦蠕孢病菌和金黄色葡萄球菌为指示菌采用抑菌活性追踪和SDS-PAGE 跟踪检测,从分离自连云港海域、对多种病原真菌具有抑菌作用的多黏类芽孢杆菌L1-9 菌株发酵液中分离纯化得到一种对金黄色葡萄球菌和小麦蠕孢病菌的菌丝生长及孢子萌发具有抑制作用的抗菌蛋白,分子质量约31kD。

关键词: 海洋多黏类芽孢杆菌L1-9 菌株, 抗菌蛋白, 纯化

Abstract:

An antimicrobial protein was obtained from the fermentation broth of a Paenibacillus polymyxa strain isolated from the sea area near Lianyungang (numbered L1-9), which has antagonic effect against a variety of pathogenic fungi, after ammonium sulfate precipitation and DEAE Sepharose Fast Flow ion exchange and Sephacryl G-200 filtration chromatographic separation. This protein was found to have the ability to inhibit the growth of Staphyloccocus aureus and the mycelial growth and spore germination of Helminthosporium sativum and possess a molecular weight of about 31 kD.

Key words: marine Paenibacillus polymyxa strain L1-9, antimicrobial protein, purification

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