Screening and Identifying of Antagonistic Actinomycetes Against Ralstonia solancearum(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2014年05期

Page:

114-117

Research Field:

Publishing date:

Info

Title:

Screening and Identifying of Antagonistic Actinomycetes Against Ralstonia solancearum

Author(s):

XIONG Shi-jun¹; 2; SUN Cheng-long³; 4; SHI Chuang²; JIANG Xuan-li¹; 2; PENG Li-juan¹; 2

1.Guizhou Key Laboratory for Plant Pest Management of Mountainous Region，Guizhou University,Guiyang，Guizhou 550025;

2.College of Agricultural,Guizhou University,Guizhou,Guiyang 550025；

3.Guizhou Key Laboratory of Agricultural Biotechnology，Guiyang，Guizhou 550006;

4.College of Life Sciences,Guizhou University,Guizhou,Guiyang 550025

Keywords:

tomato; bacterial wilt; biocontrol; actinomycete

PACS:

S 641.2

DOI:

-

Abstract:

Seventy-two strains of actinomycete were isolated from twenty soil samples，which collected from Guiyang，Zunyi，Guanling，Dushan and Majiang in Guizhou province.By pairing culture on plate method，three strains of antagonistic actinomycetes were attained to against Ralstonia solancearum.The results showed that the morphological observation and molecular biology methods identification revealed that the three strains of actinomycetes were Streptomyces galbus, Streptomyces badius and Streptomyces acidiscabies，among them，the best was S.galbus，and average inhibition diameter was 55.7 mm.Average inhibition diameter of S.badius was 43.2 mm，and average inhibition diameter of S.acidiscabies was 33.6 mm.

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