Vibrio natriegens

Species of bacterium

Vibrio natriegens is a Gram-negative marine bacterium. It was first isolated from salt marsh mud. It is a salt-loving organism (halophile) requiring about 2% NaCl for growth. It reacts well to the presence of sodium ions which appear to stimulate growth in Vibrio species, to stabilise the cell membrane, and to affect sodium-dependent transport and mobility. Under optimum conditions, and all nutrients provided, the doubling time of V. natriegens can be less than 10 minutes. V. natriegens is able to successfully live and rapidly divide in its coastal areas due its large range of metabolic fuel. Recent research has displayed that Vibrio natriegens has a flexible metabolism, which allows it to consume a large variety of carbon substrates, reduce nitrates, and even fix nitrogen from the atmosphere under nitrogen-limiting and anaerobic conditions. In the laboratory, the growth medium can be easily changed, thus affecting the growth rate of a culture. V. natriegens is commonly found in estuarine mud.

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