Nematicidal activity of Trichoderma spp. and isolation of an active compound

Trichoderma spp. play an important role in biotic control, and several are efficacious against nematodes. To study the potential of Trichoderma species in controlling nematodes, fungal filtrates of 329 Trichoderma strains were evaluated for their nematicidal activity against Panagrellus redivivus an...

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Bibliographic Details
Published in:World journal of microbiology & biotechnology 2010-12, Vol.26 (12), p.2297-2302
Main Authors: Yang, Zhong-Shan, Li, Guo-Hong, Zhao, Pei-Ji, Zheng, Xi, Luo, Shao-Liu, Li, Lei, Niu, Xue-Mei, Zhang, Ke-Qin
Format: Article
Language:English
Subjects:
Applied Microbiology
Bioassays
Biochemistry
Biological and medical sciences
Biomedical and Life Sciences
Biopesticides
Biotechnology
Caenorhabditis elegans
Chromatography
Environmental Engineering/Biotechnology
Fermentation
Fundamental and applied biological sciences. Psychology
Fungi
Laboratories
Life Sciences
Microbiology
Mortality
Nematoda
Nematodes
Panagrellus redivivus
Short Communication
Studies
Trichoderma
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Summary:Trichoderma spp. play an important role in biotic control, and several are efficacious against nematodes. To study the potential of Trichoderma species in controlling nematodes, fungal filtrates of 329 Trichoderma strains were evaluated for their nematicidal activity against Panagrellus redivivus and Caenorhabditis elegans. Fifteen strains exhibited nematicidal activity against P. redivivus , and 14 strains showed activity against C. elegans. The strain YMF1.02647 showed strong nematicidal activity against both nematodes, and the culture broth could cause more than 90% mortality to the tested nematodes within 48 h. A nematicidal compound was isolated from ethyl acetate extract of Trichoderma YMF1.02647 based on bioassay-guided fractionation. The compound was identified as trichodermin according to the spectroscopic data, which could kill more than 95% both P. redivivus and C. elegans in 72 h at 0.4 g l −1 .
ISSN:0959-3993
1573-0972
DOI:10.1007/s11274-010-0410-y