Screening of Antagonistic Microorganism against Alternaria alternata and the Physical and Chemical Properties of the Fermented Broth

doi:10.7668/hbnxb.2007.06.035

Abstract

Abstract: Bio-control microorganism against Alternaria alternates were selected by assessing the inhibition zone of living body, fermented broth on agar media and control effect in detached leaves.From 371 strains isolated from soil, two strains No.182-2 and No.163 were found to have obvious and sagtable antagonistic effect to Alternaraa alternates. The properties of fermented broth of the two strains are different to heat, UV and natural light, pH, storing time and subculture. Strain 182-2 has superior capacity of inhibiting pathogens, controlling disease and enduring bad conditions.

Key words: Alternaria alternata(Fries)Kaissler, Antagonistic microorganism, Screen , Physical and chemical properties

CLC Number:

S435.72
S476

GAO Fen, MU Ling-xiao, WEI Ying-ying, ZHAO Xiu-xiang, WU Yuan-hua. Screening of Antagonistic Microorganism against Alternaria alternata and the Physical and Chemical Properties of the Fermented Broth[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(6): 171-175. doi: 10.7668/hbnxb.2007.06.035.

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