Screening of High-performance Biocontrol Strains of Nematode-trapping Fungi from Yak Dung in
Plateau Pastures of Yunnan Province

Abstract

Abstract:

Objective: To screen high efficiency biocontrol strains of nematode-trapping fungi isolated from yak dung in plateau
pastures of Yunnan Province. Methods: Twelve nematode-trapping fungi of A. oligospora, A. musiformis, D. ellipsospora, D. leptospora
isolated from Dali Huadianba pasture, Zhongdian Dariba pasture, Baima Snow Mountain pasture were tested in pepsin-hydrochloric
acid and the nematode-trapping activity was determined subsequently. Results: Half of isolates survived in pepsin-hydrochloric acid
treatment and three isolates A. oligospora from Huadianba pasture and Dariba pasture and D. ellipsospora from Baima Snow Mountain
pasture displayed high nematode- trapping activity under laboratory conditions. Conclusion: Three high efficiency biocontrol
nematode-trapping fungi were obtained and this research accumulated biocontrol strain resources in the biological control of nematode
disease of yak and other animals.

Key words: plateau pastures, yak, nematode-trapping fungi, biological control, high efficiency fungi

CLC Number:

Q935

SHU Fanfan, DAI Qi, SU Xijun, SU Zifeng, SU Hongyan. Screening of High-performance Biocontrol Strains of Nematode-trapping Fungi from Yak Dung in
Plateau Pastures of Yunnan Province[J]. J4, 2014, 13(12): 56-59.

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