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Microorganisms

Title:		Biocontrol of Rice Seedling Rot Disease Caused by Curvularia lunata and Helminthosporium oryzae by Epiphytic Yeasts from Plant Leaves
Author(s):		Limtong S; Into P; Attarat P;
Address:		"Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand. Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand"
Journal Title:		Microorganisms
Year:		2020
Volume:		20200429
Issue:		5
Page Number:		-
DOI:		10.3390/microorganisms8050647
ISSN/ISBN:		2076-2607 (Print) 2076-2607 (Electronic) 2076-2607 (Linking)
Abstract:		"Seedling rot disease in rice leads to significant loss in the production of seedlings. This research was conducted to explore yeasts that could be used as biological control agents against rice seedling rot disease caused by Curvularia lunata and Helminthosporium oryzae. In total, 167 epiphytic yeast strains were evaluated, revealing that 13 of these yeast strains demonstrated antagonistic activities against fungal pathogens and either C. lunata DOAC 2313 or H. oryzae DOAC 2293. The volatile organic compounds (VOCs) and biofilm produced were possible antagonistic mechanisms in vitro for all the antagonistic yeast strains. Using nursery trays in a greenhouse, this study evaluated the control of rice seedling rot disease caused by these two fungal pathogens using antagonistic yeasts, identified in the present study and from our previous study. Torulaspora indica DMKU-RP31 and Wickerhamomyces anomalus YE-42 were found to completely control rice seedling rot disease caused by both of these fungal pathogens. Furthermore, W. anomalus DMKU-RP04 revealed 100% disease control when the disease was caused by H. oryzae. This is the first report on using antagonistic yeasts to control rice seedling rot disease caused by C. lunata and H. oryzae. These three antagonistic yeasts also showed promising potential for development as biocontrol agents against rice seedling rot disease caused by fungi"
Keywords:		Curvularia lunata Helminthosporium oryzae Torulaspora indica Wickerhamomyces anomalus biological control epiphytic yeasts rice seedling rot;
Notes:		"PubMed-not-MEDLINELimtong, Savitree Into, Parichat Attarat, Panchapond eng RTA6080004/Thailand Research Fund/ Switzerland 2020/05/06 Microorganisms. 2020 Apr 29; 8(5):647. doi: 10.3390/microorganisms8050647"