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2024 Speakers

Mark Joseph G Pardoncillo

Mark Joseph G Pardoncillo, Speaker at Plant Biotechnology Conferences
Mindanao State University, Philippines
Title : Isolation, characterization, and antibacterial activity of foliar fungal endophytes from rhizophora stylosa griff


The increasing demand for screening novel metabolites combating antibiotic resistance and plant diseases, set researchers to utilize mangrove-associated endophytic fungi, as they thrive in complex and dynamically challenging habitats, making them a valuable source of bioactive compounds. In this study, a total of twenty-eight (28) endophytic fungi isolated from the foliar tissues of Rhizophora stylosa Griff. in Bayug Island, Iligan City, Lanao del Norte, Mindanao, Philippines. These isolates were identified through culture morphology and microscopic characterizations on genus level. Further screened of for antibacterial activity by adopting paper disc diffusion assay, using Escherichia coli BIOTECH 1634, Staphylococcus aureus BIOTECH 1582, Xanthomonas sp. isolated from rice leaf and capsicum leaf tissues. Results demonstrated five (5) isolates showing antibacterial activity, namely, Aspergillus sp. (ML9C1B), Cladosporium sp. (ML9C1A), Sclerotinia sp. (ML2C1B), Rhizoctonia sp. (ML10C4A) and ML2C3D (unidentified) against E. coli and S. aureus. Meanwhile, only Sclerotinia sp. (ML2C1B) exhibited antibacterial activity against Xanthomonas sp. from rice leaf, none of the isolates were found effective against Xanthomonas sp. from capsicum leaf. Findings conclude that mangrove-associated fungi are potential source for novel drug discovery, thus, requiring further studies.

Keywords: antibacterial, endophytes, mangrove-associated fungi, Rhizophora stylosa Griff


Mark Joseph G. Pardoncillo is a fresh graduate from Mindanao State University – Iligan Institute of Technology with a bachelor’s degree of Biology specializing in Plant Biology. With the aim to help improve the life of Farmers in his home country, he dreams of becoming a Plant Pathologist and Plant Scientist with the pursuant to unleash breakthroughs that will benefit both the scientific community and society.

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