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Bacteria with antimicrobial properties isolated from the Mediterranean sponges Chondrilla nucula and Petrosia ficiformis
Chelossi, E.; Pantile, R.; Pronzato, R.; Milanese, M.; Hentschel, U. (2007). Bacteria with antimicrobial properties isolated from the Mediterranean sponges Chondrilla nucula and Petrosia ficiformis. Aquat. Microb. Ecol. 49: 157-163. https://dx.doi.org/10.3354/ame01134
In: Aquatic Microbial Ecology. Inter-Research: Oldendorf/Luhe. ISSN 0948-3055; e-ISSN 1616-1564
|   |
| Trefwoorden |
Chondrilla nucula Schmidt, 1862 [WoRMS]; Petrosia (Petrosia) ficiformis (Poiret, 1789) [WoRMS]; Porifera [WoRMS]
Marien/Kust |
| Author keywords |
Antimicrobial activity · Associated bacteria · Chondrilla nucula · Petrosia ficiformis · Porifera · 16S rRNA |
| Auteurs | | Top |
- Chelossi, E.
- Pantile, R.
- Pronzato, R.
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- Milanese, M.
- Hentschel, U.
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| Abstract |
Bacteria were isolated seasonally from the Mediterranean sponges Chondrilla nucula and Petrosia ficiformis and screened for antibacterial activities. Selected isolates were taxonomically identified by 16S rRNA gene sequencing. A total of 416 different bacterial strains were isolated, 60 (14.4%) of which displayed variable degrees of antimicrobial activity. Of the bioactive strains, 58.3% were able to inhibit Staphylococcus aureus, 6.7% were active against Bacillus subtilis, 11.7% against both Enterococcus faecalis and Escherichia coli, 38.3% against Pseudoalteromonas atlantica and 33.3% against Pseudomonas elongata. 16S rRNA gene sequence analysis showed that 2 isolates, 1 from seawater samples and 1 from P. ficiformis, were most closely related to Bacillus subtilis (99% similarity) and that another isolate from P. ficiformis was most closely related to a previously described sponge-associated Alphaproteobacterium NW001 (98% similarity). Two isolates from C. nucula were most closely related to Brachybacterium paraconglomeratum (99% similarity) and Shewanella algae (89% similarity). The high percentage of bioactive isolates derived from the 2 sponges suggests that marine microorganisms, whether animal-associated or planktonic, are promising sources for drug discovery. |
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