期刊
AQUACULTURE RESEARCH
卷 47, 期 8, 页码 2661-2669出版社
WILEY
DOI: 10.1111/are.12716
关键词
Aquaculture; biofilm; Vibrio harvey antibiofilm; membrane permeability
类别
资金
- University Grants Commission under LIPS Phase II
- DST, India under WOS-B scheme
Microbial biofilms are important in aquaculture industries as they resist antibiotic treatments. In this study, we have investigated the antibiofilm potential of a tropical marine culture Bacillus licheniformis D1 (containing an antimicrobial protein BLDZI) against two aquaculture associated pathogens namely, Vibrio harveyi and Pseudomonas aeruginosa. Both the test cultures formed biofilms on polystyrene and glass surfaces. The cell free supernatant (CFS) of B. licheniformis inhibited harveyi and P. aeruyinosa biofilms on polystyrene surfaces up to around 80% and 78% respectively. In addition, the CFS disrupted performed biofilms of test cultures by about 73%. Fluorescence and scanning electron microscope analysis confirmed the antibiofilm potential of the CFS. The cell free supernatant displayed antiadhesive activity that inhibited the initial attachment of the bacteria during the process of biofilm formation addition CFS exhibited antimicrobial activity and mediated cell death via cytoplasmic membrane disruption.
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