Sastia Prama PutriKei ichi IshidoHiroshi KinoshitaShigeru KitaniFumio IharaYasuko SakihamaYasuhiro IgarashiTakuya NihiraOsaka UniversityInstitute of Fruit Tree and Tea Science, NAROToyama Prefectural UniversityHokkaido UniversityMahidol University2018-11-092018-11-092014-01-01Journal of Bioscience and Bioengineering. Vol.117, No.5 (2014), 557-56213474421138917232-s2.0-84897062004https://repository.li.mahidol.ac.th/handle/20.500.14594/33493A total of 412 strains belonging to 14 genera of clavicipitoid entomopathogenic fungi (EPF) were screened for activities against two economically important plant pathogenic oomycetes, Phytophthora sojae and Aphanomyces cochlioides. To identify the antioomycete compounds produced by EPF, the extracts of 13 highly active EPF strains were characterized in detail by high performance liquid chromatography with diode array detection and high-resolution mass spectrometric detection and antioomycete assay. The antioomycete activity of several Metarhizium extracts was associated with previously isolated aurovertins, fungerin, N-(methyl-3-oxodec-6-enoyl)-2-pyrroline, and N-(methyl-3-oxodecanoyl)-2-pyrroline. The depsipeptide beauvericin was confirmed to be one of the active principles of three strains of Isaria tenuipes, which strongly inhibited mycelial growth of both P.sojae and A.cochlioides. Two known bioactive metabolites, paecilosetin and aranorosinol A, together with a novel and potent antioomycete compound, farinomalein, were isolated from the extracts of Isaria farinosa and all compounds were confirmed to have antioomycete activity. Identification of 8 antioomycete compounds from 13 clavicipitioid EPF demonstrated a new potential use of EPF as a source of compounds for the control of soil-borne plant pathogenic oomycetes. © 2013 The Society for Biotechnology, Japan.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyChemical EngineeringImmunology and MicrobiologyProduction of antioomycete compounds active against the phytopathogens Phytophthora sojae and Aphanomyces cochlioides by clavicipitoid entomopathogenic fungiArticleSCOPUS10.1016/j.jbiosc.2013.10.014