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| Content Provider | Springer Nature Link |
|---|---|
| Author | Padmavathi, Alwar Ramanujam Pandian, Shunmugiah Karutha |
| Copyright Year | 2014 |
| Abstract | Coral Associated Bacteria (CAB) (N = 22) isolated from the mucus of the coral Acropora digitifera were screened for biosurfactants using classical screening methods; hemolysis test, lipase production, oil displacement, drop collapse test and emulsifying activity. Six CAB (U7, U9, U10, U13, U14, and U16) were found to produce biosurfactants and were identified by 16S ribosomal RNA gene sequencing as Providencia rettgeri, Psychrobacter sp., Bacillus flexus, Bacillus anthracis, Psychrobacter sp., and Bacillus pumilus respectively. Their cell surface hydrophobicity was determined by Microbial adhesion to hydrocarbon assay and the biosurfactants produced were extracted and characterized by Fourier Transform Infrared spectroscopy. Since the biosurfactants are known for their surface modifying capabilities, antibiofilm activity of positive isolates was evaluated against biofilm forming Pseudomonas aeruginosa ATCC10145. Stability of the active principle exhibiting antibiofilm activity was tested through various temperature treatments ranging from 60 to 100 °C and Proteinase K treatment. CAB isolates U7 and U9 exhibited stable antibiofilm activity even after exposure to higher temperatures which is promising for the development of novel antifouling agents for diverse industrial applications. Further, this is the first report on biosurfactant production by a coral symbiont. |
| Starting Page | 376 |
| Ending Page | 382 |
| Page Count | 7 |
| File Format | |
| ISSN | 00468991 |
| Journal | Indian Journal of Microbiology |
| Volume Number | 54 |
| Issue Number | 4 |
| e-ISSN | 09737715 |
| Language | English |
| Publisher | Springer India |
| Publisher Date | 2014-06-17 |
| Publisher Institution | Association of Microbiologists of India |
| Publisher Place | India |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Coral associated bacteria Biosurfactant Antibiofilm Lipopeptide Microbiology Medical Microbiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology |
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