Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Antibacterial activity of marine macroalgae against fish pathogenic Vibrio species |
| Abstract | In mariculture, diseases of microbial origin can cause significant economic losses worldwide; the evolution of microorganism resistance to antibiotics has resulted in a growing need for new antibacterial compounds that are effective in veterinary medicine and characterized by limited undesirable side effects. Increased attention has recently been turned to seaweeds as a promising source for metabolites with antimicrobial activity. Vibriosis is a common disease, caused by bacteria of the genus Vibrio, that can result in high mortality in aquaculture. The aim of this study was to identify seaweeds with antibacterial activity against some pathogenic Vibrio species, in order to identify a possible alternative to the commonly used antibiotics in aquaculture. Chloroform/methanol lipidic extracts of six seaweed species (Chaetomorpha linum, Cladophora rupestris, Gracilaria dura, Gracilaria gracilis, Gracilariopsis longissima, Ulva prolifera) were tested for their antibacterial activities against six fish pathogenic Vibrio species using the disc diffusion method. Different susceptibilities to lipidic algal extracts were observed. All six of the seaweed extracts tested demonstrated inhibition of Vibrio ordalii. The best was that from Gracilariopsis longissima, showing activity against Vibrio ordalii, Vibrio salmonicida, Vibrio alginolyticus and Vibrio vulnificus. The results confirmed the potential use of seaweed extracts as a source of antibacterial compounds or as a health-promoting feed for aquaculture. |
| Source | Central European Journal of Biology (Print) 8 (7), pp. 646–653 |
| Keywords | Antibacterial compounds Mar Piccolo of Taranto Mediterranean Sea Seaweeds Vibrio spp. |
| Journal | Central European Journal of Biology (Print) |
| Editor | Versita ;, Berlin ;, Polonia |
| Year | 2013 |
| Type | Articolo in rivista |
| DOI | 10.2478/s11535-013-0181-6. |
| Authors | Cavallo Rosa Anna; Acquaviva Maria Immacolata; Stabili Loredana; Cecere Ester; Petrocelli Antonella; Narracci Marcella |
| Text | 219177 2013 10.2478/s11535 013 0181 6. Antibacterial compounds Mar Piccolo of Taranto Mediterranean Sea Seaweeds Vibrio spp. Antibacterial activity of marine macroalgae against fish pathogenic Vibrio species Cavallo Rosa Anna; Acquaviva Maria Immacolata; Stabili Loredana; Cecere Ester; Petrocelli Antonella; Narracci Marcella CNR, Inst Marine Coastal Environm IAMC, I 74123 Taranto, Italy Univ Salento, Dept Biol Environm Sci Technol, I 73100 Lecce, Italy In mariculture, diseases of microbial origin can cause significant economic losses worldwide; the evolution of microorganism resistance to antibiotics has resulted in a growing need for new antibacterial compounds that are effective in veterinary medicine and characterized by limited undesirable side effects. Increased attention has recently been turned to seaweeds as a promising source for metabolites with antimicrobial activity. Vibriosis is a common disease, caused by bacteria of the genus Vibrio, that can result in high mortality in aquaculture. The aim of this study was to identify seaweeds with antibacterial activity against some pathogenic Vibrio species, in order to identify a possible alternative to the commonly used antibiotics in aquaculture. Chloroform/methanol lipidic extracts of six seaweed species Chaetomorpha linum, Cladophora rupestris, Gracilaria dura, Gracilaria gracilis, Gracilariopsis longissima, Ulva prolifera were tested for their antibacterial activities against six fish pathogenic Vibrio species using the disc diffusion method. Different susceptibilities to lipidic algal extracts were observed. All six of the seaweed extracts tested demonstrated inhibition of Vibrio ordalii. The best was that from Gracilariopsis longissima, showing activity against Vibrio ordalii, Vibrio salmonicida, Vibrio alginolyticus and Vibrio vulnificus. The results confirmed the potential use of seaweed extracts as a source of antibacterial compounds or as a health promoting feed for aquaculture. 8 Published version Articolo in rivista Versita ; 1895 104X Central European Journal of Biology Print Central European Journal of Biology Print Cent. Eur. J. Biol. Print Central European Journal of Biology. Print antonella.petrocelli PETROCELLI ANTONELLA loredana.stabili STABILI LOREDANA mariaimmacolata.acquaviva ACQUAVIVA MARIA IMMACOLATA marcella.narracci NARRACCI MARCELLA ester.cecere CECERE ESTER rosaanna.cavallo CAVALLO ROSA ANNA |