Selection and Antagonistic Mechanism of Bacillus thuringiensis BK4 against Fusarium Wilt Disease of Tomato

Selection and Antagonistic Mechanism of Bacillus thuringiensis BK4 against Fusarium Wilt Disease of Tomato

In oder to select an antifungal substance-producing antagonistic bacterium against Fusarium oxysporum casuing fusarium wilt on tomato, strain BK4 was isolated from local soil of Gyeoungbuk and was identified as Bacillus thuringiensis by 16S rDNA analysis, biochemical test, and Mcirolog TM 3.0 System...

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Veröffentlicht in:Han'gug mi'saengmul saengmyeong gong haghoeji 2005-09, Vol.33 (3), p.194-199
Hauptverfasser: Jung, H.K. (Yeungnam University, Gyeongsan, Republic of Korea), Kim, J.R. (Yeungnam University, Gyeongsan, Republic of Korea), Kim, B.K. (Yeungnam University, Gyeongsan, Republic of Korea), Yu, T.S. (Keimyung University, Daegu, Republic of Korea), Kim, S.D. (Yeungnam University, Gyeongsan, Republic of Korea), E-mail: sdkim@yumail.ac.kr
Format: Artikel
Sprache:kor
Schlagworte:
antifungal antibiotic
BACILLUS THURINGIENSIS
BIOLOGICAL CONTROL
CONTROL BIOLOGICO
FUSARIUM OXYSPORUM
LUTTE BIOLOGIQUE
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Zusammenfassung:In oder to select an antifungal substance-producing antagonistic bacterium against Fusarium oxysporum casuing fusarium wilt on tomato, strain BK4 was isolated from local soil of Gyeoungbuk and was identified as Bacillus thuringiensis by 16S rDNA analysis, biochemical test, and Mcirolog TM 3.0 System. The antibiotic of B. thuringiensis BK 4 was highly produced at 30℃ in nutrient broth (pH 9.0). The crude antibiotic was even stable at 121℃ and more stable at slight alkalic condition than acid condition.
ISSN:1598-642X