ACTA AGRICULTURAE BOREALI-SINICA ›› 2014, Vol. 29 ›› Issue (1): 222-226. doi: 10.7668/hbnxb.2014.01.040

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Isolation and Identification of Nematophagous fungi and the Induction Effect of Amino Acids on It Trap Foming

CHEN Shuang-qing1, MENG Qing-ling1, QIAO Jun1, ZHAO Hai-long1, WANG Jun-wei1, WANG Wei-sheng1, LUO Jian-xun2, CAI Xue-peng2   

  1. 1. Key Lab of Preventive Veterinary, College of Animal Science and Technology, Shihezi University Shihezi 832003, China;
    2. State Key Lab of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
  • Received:2013-09-04 Published:2014-02-28

Abstract: Nematode-trapping fungi were isolated with corn meal agar(CMA) from soils samples of Altay region in Xinjiang Province. 6 strains were successfully isolated and five strains identified as Arthrobotrys oligospora and the other one is Arthrobotrys conoides through morphological characteristics and molecular biology analysis. In addition, four amino acids(L-phenylalanine,L-tryptophan,L-methionine and L-valine) in different concentrations(0. 5, 0. 05,0. 005 g / L) were used as revulsive to induce the nematode-trapping organs forming of AS3 strain. The results showed that all the amino acids had effects on the traps forming,but the L-phenylalanine in concentration of 0. 05 g / L induced maximum number of trapping devices. This study laid a good foundation for biological prevention and control by nematode-trapping fungi.

Key words: Nematode-trapping fungus, Isolation and identification, Amino acids, Nematode-trapping devices forming

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Cite this article

CHEN Shuang-qing, MENG Qing-ling, QIAO Jun, ZHAO Hai-long, WANG Jun-wei, WANG Wei-sheng, LUO Jian-xun, CAI Xue-peng. Isolation and Identification of Nematophagous fungi and the Induction Effect of Amino Acids on It Trap Foming[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(1): 222-226. doi: 10.7668/hbnxb.2014.01.040.

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