ACTA AGRICULTURAE BOREALI-SINICA ›› 2007, Vol. 22 ›› Issue (6): 171-175. doi: 10.7668/hbnxb.2007.06.035

Special Issue: Tobacco

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

GAO Fen1, MU Ling-xiao2, WEI Ying-ying2, ZHAO Xiu-xiang2, WU Yuan-hua2   

  1. 1. College of Plant Protection, Shenyang Agricultural University, Shenyang 110161, China;
    2. Institute of Plant Protection, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, China
  • Received:2007-06-20 Published:2007-12-28

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

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Cite this article

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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