Nematicidal effect of volatiles produced by Trichoderma sp

• Published in: Journal of Asia-Pacific entomology Vol. 15; no. 4; pp. 647 - 650
• Main Authors: Yang, Zhongshan, Yu, Zefen, Lei, Liping, Xia, Zhenyuan, Shao, Li, Zhang, Keqin, Li, Guohong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.12.2012; 한국응용곤충학회
• Subjects: 6-Pentyl-2H-pyran-2-one; Bursaphelenchus xylophilus; Caenorhabditis elegans; Nematicidal activity; Nematoda; Panagrellus redivivus; TRICHODERMA; Volatile organic compounds; 농수해양학; Volatile organic compounds; Trichoderma; 6-Pentyl-2H-pyran-2-one; Nematicidal activity
• ISSN: 1226-8615; 1876-7990
• DOI: 10.1016/j.aspen.2012.08.002

Trichoderma is an important biocontrol agent that produces metabolites harmful to nematodes. We investigated the volatile organic compounds (VOCs) of Trichoderma sp. YMF 1.00416 and examined their abilities to kill nematodes. Chemical investigations of the VOCs from this strain led to the isolation and identification of three metabolites: a new compound, 1β-vinylcyclopentane-1α,3α-diol (1) and two known metabolites, 6-pentyl-2H-pyran-2-one (2) and 4-(2-hydroxyethyl)phenol (3). Nematicidal activity assays showed that compound 2 was nematicidal, and killed >85% of Panagrellus redivivus, Caenorhabditis elegans, and Bursaphelenchus xylophilus in 48h at 200mg/L in a 2mL vial. Our results will help identify new nematicides. The fungus Trichoderma sp. YMF 1.00416 has been found to produce volatile organic compounds (VOC) to kill nematodes in a three-compartmented petri dish and a vial experiment. The nematicidal volatile organic compound 6-pentyl-2H-pyran-2-one was obtained from the stain. [Display omitted] ► Trichoderma sp. YMF 1.00416 produced compounds to kill nematodes. ► A new compound 1β-vinylcyclopentane-1α,3α-diol was obtained. ► Compound 6-pentyl-2H-pyran-2-one was a nematicidal volatile compound.