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烟草青枯病拮抗菌的筛选及抑菌活性的测定
引用本文:张深,吴洪田,霍沁建,梁永江,薛小平,张洁,黄建国. 烟草青枯病拮抗菌的筛选及抑菌活性的测定[J]. 烟草科技, 2007, 0(6): 56-58
作者姓名:张深  吴洪田  霍沁建  梁永江  薛小平  张洁  黄建国
作者单位:1. 西南大学资源环境学院,重庆市北碚天生路1号,400716
2. 遵义市烟草公司技术中心,贵州省遵义市大兴路47号,563000
基金项目:国家烟草专卖局资助项目
摘    要:为有效防治烟草青枯病,从贵州省青枯病迟发烟地和不发烟地土壤中筛选出15株拮抗菌,对拮抗菌的拮抗能力进行了鉴定。筛选出拮抗力较强的3个菌株(LCA-9、PCM-4、SXM-2),并对3菌株的抗菌物质进行了粗提,检验其抑菌活性。结果表明:3种菌的发酵分泌液对烟草青枯病均有一定的抑制作用,其中SXM-2发酵液的抑菌活性较大、效果较好。

关 键 词:烟草  青枯病  拮抗菌  拮抗力  抗菌物质  抑菌活性
文章编号:1002-0861(2007)06-0056-03
修稿时间:2006-12-24

Screening of Antagonistic Bacteria Against Ralstonia solanacearum and Determination of Their Antibacterial Activities
ZHANG SHEN,WU HONG-TIAN,HUO QIN-JIAN,LIANG YONG-JIANG,XUE XIAO-PING,ZHANG JIE,HUANG JIAN-GUO. Screening of Antagonistic Bacteria Against Ralstonia solanacearum and Determination of Their Antibacterial Activities[J]. Tobacco Science & Technology, 2007, 0(6): 56-58
Authors:ZHANG SHEN  WU HONG-TIAN  HUO QIN-JIAN  LIANG YONG-JIANG  XUE XIAO-PING  ZHANG JIE  HUANG JIAN-GUO
Abstract:In order to control Ralstonia solanacearum effectively, 15 antagonistic bacteria were isolated from the soil of tobacco field in Guizhou, where Ralstonia solanacearum did not occur or occurred later. The antibacterial substances of three strains (LCA-9, PCM-4 and SXM-2) with stronger antagonistic ability were extracted primarily and their antibacterial activities were tested. The results showed that the fermentive secretions of LCA-9, PCM-4 and SXM-2 could restrain Ralstonia solanacearum to a certain extent, and the fermentive secretion of SXM-2 possessed higher antibacterial activity and control effect.
Keywords:Tobacco  Ralstonia solanacearum  Antagonistic bacteria  Antagonistic ability  Antibacterial substance  Antibacterial activity
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