Causal Study on Inhibition Effects of Antagonistic Bacillus Strain B96-II to Asparagus Stem Blight

doi:10.7668/hbnxb.2008.02.040

Abstract

Abstract: Antagonistic Bacillus strain B96一II could effectively inhibite mycelia growth and spore germination ofPhomopsis asparagi Sacc,pathogen of asparagus stem blight. The inhibition rates were 89. 62%and 99. 65%respective-1y. Field trials showed a control efficacy of 93. 10%.Contents of 5 resistance related enzymes in asparagus plants werestimulated distinctly 30 d after treatment with B96一II. Cbmpared with untreated control sample,superoxide dismutase ac-tivity had an increase of 254. 98%,such as 81.84%to catalase,22. 13%to peroxidase,146. 67%to polyphenoloxidase，and 171. 60%to phenylalanin ammonialyase.

Key words: Asparagus stem blight, Bacillus sp, Antagonistic protein, Induced resistance, Protective enzyme

CLC Number:

S436.3

MA Li-ping, HAO Bian-qing, QIN Shu, QIAO Xiong-wu. Causal Study on Inhibition Effects of Antagonistic Bacillus Strain B96-II to Asparagus Stem Blight[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 180-184. doi: 10.7668/hbnxb.2008.02.040.

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http://www.hbnxb.net/EN/Y2008/V23/I2/180

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