Twenty distinct endophytic fungi were isolated from the surface-sterilized plant parts of and were identified using morphological and molecular techniques. At 300 µg/disc concentration, eight of the 20 fungal extracts exhibited antimicrobial activities against (ATCC 25923) and (ATCC 11778) while two within the eight showed activity against (ATCC 9027) and (ATCC 35218). Furthermore, investigation of the crude extract of resulted in the isolation of two known cytochalasans, chaetoglobosin A and C, and their structures were elucidated and confirmed by mass and nuclear magnetic resonance (NMR) (H, C, COSY, HSQC, HMBC and tROESY) spectral data. Chaetoglobosin A showed antibacterial activities against (MIC 16 µg mL), (MIC 32 µg mL) and methicillin-resistant (MRSA, MIC 32 µg mL). This is the first study to report the isolation, identification and antimicrobial properties of endophytic fungi of in Sri Lanka.
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| http://dx.doi.org/10.1080/21501203.2015.1136708 | DOI Listing |
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