Comparative activity and stability under salinity conditions of different antimicrobial peptides isolated from aquatic animals

Autor: Evelyne Bachère, Margherita Anna Barracco, Elza de Fátima Albino Smânia, Artur Smânia, Sara Emelie Löfgren
Rok vydání: 2009
Předmět:
Zdroj: Aquaculture Research. 40:1805-1812
ISSN: 1355-557X
DOI: 10.1111/j.1365-2109.2009.02266.x
Popis: This study reports the in vitro activity of six antimicrobial peptides (AMPs) produced by aquatic animals (most marine invertebrates): tachyplesin (Tach), magainin (Mag), clavanin (Clav), penaeidin (Pen), mytilin (Myt) and antilipopolysaccharide factor (ALF) against marine vibrios, filamentous fungi and yeast. Their stability under salinity conditions and seawater was also examined. The results showed that Mag, Myt and especially Tach and ALF (minimum inhibitory concentration 225 mM NaCl). Tach and Myt were the most stable peptides, maintaining significant activity under seawater salinity (450 mM). Curiously, all peptides lost their effect under seawater conditions. The results suggest that Tach, ALF and Myt are the most promising candidates for potential therapeutic use in farmed-marine species, because all have a significant and broad antimicrobial activity maintained at high salinity.
Databáze: OpenAIRE