NDLI: Antifungal Volatile Organic Compounds from the Endophyte Nodulisporium sp. Strain GS4d2II1a: a Qualitative Change in the Intraspecific and Interspecific Interactions with Pythium aphanidermatum

Content Provider	Springer Nature Link
Author	Sánchez Fernández, Rosa Elvira Diaz, Daniel Duarte, Georgina Lappe Oliveras, Patricia Sánchez, Sergio Macías Rubalcava, Martha Lydia
Copyright Year	2015
Abstract	This study demonstrates volatile organic compounds (VOCs) production as one of the defense mechanisms of the antagonistic endophyte Nodulisporium sp. GS4d2II1a, and the volatile changes in two times of the fungal growth; and, as result of its intra and interspecific interactions with the plant pathogen Pythium aphanidermatum. The antifungal activity of the volatile and diffusible metabolites was evaluated by means of three types of antagonism bioassays and by organic extract agar dilution. VOCs were obtained by gas chromatography coupled to mass spectrometry from 3- and 5-day Nodulisporium sp. cultures, as well as from its interspecific in vitro antagonistic interaction with the oomycete P. aphanidermatum, and its intraspecific Nodulisporium sp.–Nodulisporium sp. interaction. The GS4d2II1a strain completely inhibited the growth of two fungi and seven oomycetes by replacing their mycelia in simple antagonism bioassays and by producing in vitro volatile and diffusible metabolites that acted synergistically in multiple antagonism bioassays. Additionally, VOCs inhibited the growth of three oomycetes and one fungus in antagonism bioassays using divided plates. A total of 70 VOCs were detected, mainly including mono and sesquiterpenes, especially eucalyptol and limonene. Multiple correspondence analysis revealed four different volatile profiles, showing that volatiles changed with the fungus age and its intra and interspecific interactions. The metabolites produced by Nodulisporium sp. GS4d2II1a could be useful for biological control of fungal and oomycetes plant pathogens of economically important crops.
Starting Page	347
Ending Page	364
Page Count	18
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	71
Issue Number	2
e-ISSN	1432184X
Language	English
Publisher	Springer US
Publisher Date	2015-09-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Endophytic fungus Nodulisporium sp. Hypoxylon anthochroum Antifungal VOCs Interspecific interaction Microbiology Ecology Microbial Ecology Geoecology/Natural Processes Nature Conservation Water Quality/Water Pollution
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

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