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HERDIN Record #: NCR-OLFU-14041414203232 Submitted: 14 April 2014 Modified: 16 April 2014

Antimicrobial potential of endophytic fungi isolated from the Leaves of Origanum vugare, Psidium guajava and Chrysophyllum cainito.

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Endophytic fungi are a group of fungi that live within a plant without causing a disease. They are endosymbionts. This study isolated endophytic fungi from Chrysophyllum cainito (Star apple), Origanum vulgare (Oregano), and Psidium guajava (Guava). Endofungal isolates were grown in a special Potato dextrose agar (PDA) and a colony was selected to prepare a pure culture. Endofungal isolates were tested for antimicrobial activity by agar well diffusion method. All the endofungal isolates displayed significant antimicrobial activity against Staphylococcus aureus and the endophytic fungi in Psidium guajava displayed the strongest antibacterial activity. Results from the present study proves that endophytic fungi could be a promising source of antimicrobial agents.

Publication Type
Publication Sub Type
Journal Article, Original
Fatima University Research Journal
Publication Date

Publication Type
Thesis Degree
Publication Date
March 2013


This study determined whether the endophytic fungi found in the leaves of Origanum vulgare, Psidium guajava and Chrysophyllum cainito have an anti-microbial potential when tested against the bacterium Staphylococcus aureus. The study also sought to compare the zone of inhibition of Origanum vulgare, Psidium guajava and Chrysophyllum cainito and if a significant relationship between the zone of inhibition of those three sample endophytic fungi and choramphenicol exists.

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Our Lady of Fatima University Fulltext Print Format
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