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Antifouling Activity of Bacterial Symbionts of Seagrasses against Marine Biofilm-Forming Bacteria

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DOI: 10.4236/jep.2011.29143    4,816 Downloads   9,533 Views Citations


Marine biofouling has been regarded as a serious problem in the marine environment. The application of TBT and other heavy metal-based antifoulants has created another environmental problem. The present study explored the possible role of baterial symbionts of seagrasses Thalassia hemprichii, and Enhalus acoroides, which were successfully screened for antifouling activity against marine biofilm-forming bacteria isolated from the surrounding colonies of seagrasses. Bacterial symbionts were isolated and tested against biofilm-forming bacteria resulted in 4 bacterial symbionts capable of inhibiting the growth biofilm-forming isolates. Molecular identification based on 16S rRNA gene sequences revealed that the active bacterial symbionts belonged to the members of the genera Bacillus and Virgibacillus. Further tests of the crude extracts of the active bacterial symbionts supported the potential of these symbionts as the alternative source of environmentally friendly marine antifoulants.

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D. Bengen, M. Khoeri, B. Marhaeni, O. Radjasa, A. Sabdono and H. Sudoyo, "Antifouling Activity of Bacterial Symbionts of Seagrasses against Marine Biofilm-Forming Bacteria," Journal of Environmental Protection, Vol. 2 No. 9, 2011, pp. 1245-1249. doi: 10.4236/jep.2011.29143.

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