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PLoS One

Title:		Use of the Endophytic Fungus Daldinia cf. concentrica and Its Volatiles as Bio-Control Agents
Author(s):		Liarzi O; Bar E; Lewinsohn E; Ezra D;
Address:		"Department of Plant Pathology and Weed Research, Agricultural Research Organization, the Volcani Center, Rishon LeZion, Israel. Newe Ya'ar Regional Research Center, Ramat Yishai, Israel"
Journal Title:		PLoS One
Year:		2016
Volume:		20161215
Issue:		12
Page Number:		e0168242 -
DOI:		10.1371/journal.pone.0168242
ISSN/ISBN:		1932-6203 (Electronic) 1932-6203 (Linking)
Abstract:		"Endophytic fungi are organisms that spend most of their life cycle within plant tissues without causing any visible damage to the host plant. Many endophytes were found to secrete specialized metabolites and/or emit volatile organic compounds (VOCs), which may be biologically active and assist fungal survival inside the plant as well as benefit their hosts. We report on the isolation and characterization of a VOCs-emitting endophytic fungus, isolated from an olive tree (Olea europaea L.) growing in Israel; the isolate was identified as Daldinia cf. concentrica. We found that the emitted VOCs were active against various fungi from diverse phyla. Results from postharvest experiments demonstrated that D. cf. concentrica prevented development of molds on organic dried fruits, and eliminated Aspergillus niger infection in peanuts. Gas chromatography-mass spectrometry analysis of the volatiles led to identification of 27 VOCs. On the basis of these VOCs we prepared two mixtures that displayed a broad spectrum of antifungal activity. In postharvest experiments these mixtures prevented development of molds on wheat grains, and fully eliminated A. niger infection in peanuts. In light of these findings, we suggest use of D. cf. concentrica and/or its volatiles as an alternative approach to controlling phytopathogenic fungi in the food industry and in agriculture"
Keywords:		Aspergillus niger/*drug effects Endophytes/*metabolism Fungi/*drug effects Plant Diseases/*microbiology Volatile Organic Compounds/metabolism/*pharmacology Xylariales/*metabolism;
Notes:		"MedlineLiarzi, Orna Bar, Einat Lewinsohn, Efraim Ezra, David eng 2016/12/16 PLoS One. 2016 Dec 15; 11(12):e0168242. doi: 10.1371/journal.pone.0168242. eCollection 2016"