Introduction Pathogenic Vibrio species are of major concern as they are responsible for infectious diseases in humans. However, other Vibrio species found in the aquatic environment and defined as non pathogenic for humans, such as Vibrio alginolyticus, Vibrio harveyi, Vibrio anguillarum, Vibrio fluvialis and others are also of interest in that, although rarely, they have been isolated in assoc...

Sea foods are prone to bacterial contamination and could cause health risk to consumers. The present work aimed to study the occurrence of Salmonella and Vibrio in some seafood from different markets in Alexandria. The study was carried out on 150 seafood samples (shrimp, oyster (Gandofli) and mussel (Om El Kholoul)). For detection of Salmonella; samples were cultured on CHROM agar Salmonella P...

In torque generation by the bacterial flagellar motor, it has been suggested that electrostatic interactions between charged residues of MotA and FliG at the rotor-stator interface are important. However, the actual role(s) of those charged residues has not yet been clarified. In this study, we systematically made mutants of Vibrio alginolyticus whose charged residues of PomA (MotA homologue) a...

BACKGROUND The Centers for Disease Control and Prevention monitors vibriosis through 2 surveillance systems: the nationwide Cholera and Other Vibrio Illness Surveillance (COVIS) system and the 10-state Foodborne Diseases Active Surveillance Network (FoodNet). COVIS conducts passive surveillance and FoodNet conducts active surveillance for laboratory-confirmed Vibrio infections. METHODS We sum...

The bacterial flagellar motor is a molecular machine that converts ion flux across the membrane into flagellar rotation. The coupling ion is either a proton or a sodium ion. The polar flagellar motor of the marine bacterium Vibrio alginolyticus is driven by sodium ions, and the four protein components, PomA, PomB, MotX, and MotY, are essential for motor function. Among them, PomA and PomB are s...

White shrimp, Litopenaeus vannamei, which had been injected with chitin at 4, 6 and 8 microg g(-1) or chitosan at 2, 4 and 6 microg g(-1), were challenged with pathogen Vibrio alginolyticus at 2 x 10(6) colony-forming units (cfu) shrimp(-1) and then placed in seawater of 34 per thousand. The survival of shrimp that received chitin or chitosan at either dose was significantly higher than that of...