A report on the UPLB Basic Research Program funded study to conduct initial assessments of microbial diversity of caves in Polillo Island, a Philippine Biodiversity Conservation Priority Area (PBCPA). Among the specific objectives are to: 1.) collect biofilm samples from cave environs (streams, pool of standing water, underwater passages, dripping water and rocks) of Mapanghe and Bulalon Caves in Polillo Islands, 2.) isolate, purify and identify bacterial species, 3.) conduct and monitor in situ biofilm formation, 4.) document the initial findings on the microbial diversity of caves in the Philippines, and 5.) deposit the pure cultures in the Microbial Culture Collection of the Museum of Natural History (MCC-MNH), University of the Philippines Los Baños.
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