Preliminary Characterization of a Nisin Z Bacteriocin with Activity Against the Fish Pathogen Streptococcus iniae
نویسندگان
چکیده
منابع مشابه
Recovery of Streptococcus iniae from diseased fish previously vaccinated with a streptococcus vaccine.
Streptococcus iniae was recovered from diseased rainbow trout (Oncorhynchus mykiss, Walbaum) previously vaccinated against streptococcosis. PCR and serological methods indicate the presence of a new serotype in the diseased fish.
متن کاملTrojan horse effect: phagocyte-mediated Streptococcus iniae infection of fish.
The salmonid macrophage-like cell line RTS-11 and purified trout pronephros phagocytes were used to analyze in vitro entry and survival of two Streptococcus iniae serotypes. Efficient invasion by S. iniae occurred in both cells, but only the type II strain persisted in pronephros phagocytes for at least 48 h. Ex vivo models of opsonin-dependent phagocytosis by pronephros phagocytes demonstrated...
متن کاملPolyelectrolyte Multicomponent Colloidosomes Loaded with Nisin Z for Enhanced Antimicrobial Activity against Foodborne Resistant Pathogens
Food grade micro- or nano-carrier systems (NCS) are being developed to improve the controlled release of antimicrobial agents. To augment the stability of liposomal NCS and to overcome the limitations associated with the use of free bacteriocin (nisin) in the food system, multi-component colloidosomes (MCCS) were developed by electrostatic interactions between anionic alginate and cationic chit...
متن کاملActivity of nisin against Streptococcus pneumoniae, in vitro, and in a mouse infection model.
Sir, Nisin, a lanthionine-containing peptide from L actococcus lactis, is used as a food preservative because of its activity against spoilage bacteria. Like other cationic peptides, nisin interacts with the cell membrane and induces pore formation. Because of the increasing resistance of pathogenic bacteria to antibiotics, we are evaluating the potential use of nisin, and of variant peptides, ...
متن کاملSil: A Streptococcus iniae Bacteriocin with Dual Role as an Antimicrobial and an Immunomodulator That Inhibits Innate Immune Response and Promotes S. iniae Infection
Streptococcus iniae is a Gram-positive bacterium and a severe pathogen to a wide range of economically important fish species. In addition, S. iniae is also a zoonotic pathogen and can cause serious infections in humans. In this study, we identified from a pathogenic S. iniae strain a putative bacteriocin, Sil, and examined its biological activity. Sil is composed of 101 amino acid residues and...
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ژورنال
عنوان ژورنال: Oceanography & Fisheries Open access Journal
سال: 2017
ISSN: 2476-0536
DOI: 10.19080/ofoaj.2017.03.555610