« Previous AbstractUse of the Endophytic Fungus Daldinia cf. concentrica and Its Volatiles as Bio-Control Agents    Next AbstractPheromones released during inter- and intra-sex response of the scolytid beetle Dendroctonus brevicomis »

Pest Manag Sci

Title:		"trans-2-Octenal, a single compound of a fungal origin, controls Sclerotium rolfsii, both in vitro and in soil"
Author(s):		Liarzi O; Benichis M; Gamliel A; Ezra D;
Address:		"Department of Plant Pathology and Weed Research, ARO - the Volcani Center, Rishon LeZion, Israel. Laboratory for Pest Management Research, Institute of Agricultural Engineering, ARO - the Volcani Center, Rishon LeZion, Israel"
Journal Title:		Pest Manag Sci
Year:		2020
Volume:		20200129
Issue:		6
Page Number:		2068 - 2071
DOI:		10.1002/ps.5744
ISSN/ISBN:		1526-4998 (Electronic) 1526-498X (Linking)
Abstract:		"BACKGROUND: Sclerotium rolfsii is a soil-borne phytopathogenic fungus that causes diseases in economically important crops. Eradication of the fungus is hampered by its wide range of hosts, as well as its capacity to form sclerotia. Recently, we have shown that the endophytic fungus Daldinia cf. concentrica emits biologically active volatile organic compounds (VOCs); we also demonstrated that one VOC, trans-2-octenal, was the most effective against various phytopathogenic fungi. Thus, the aim of this study was to examine the potential of this compound to control hyphae and sclerotia of S. rolfsii, both in vitro and in soil. RESULTS: We found that in vitro exposure of S. rolfsii mycelium to trans-2-octenal in air fully inhibits and kills the fungus. Elimination of sclerotia viability occurred at the same concentration, but direct contact between the sclerotia and the compound was needed. trans-2-Octenal also affected the viability of both hyphae and sclerotia of S. rolfsii in small pots containing loam soil. CONCLUSION: We suggest the use of trans-2-octenal as a novel compound to control S. rolfsii. (c) 2020 Society of Chemical Industry"
Keywords:		Aldehydes *Ascomycota *Basidiomycota Plant Diseases Soil Sclerotium rolfsii trans-2-octenal endophytes pests management soil disinfection volatile organic compounds;
Notes:		"MedlineLiarzi, Orna Benichis, Marina Gamliel, Abraham Ezra, David eng 'Kamin' project of the Israeli Ministry of Economy/ 132-1252-06/Chief Scientist of the Israeli Ministry of Agriculture and Rural Development (MOARD)/ England 2020/01/17 Pest Manag Sci. 2020 Jun; 76(6):2068-2071. doi: 10.1002/ps.5744. Epub 2020 Jan 29"