Vibrio cholera is a gram-negative bacteria that does not stain when crystal violet dye is applied due to a much thinner peptidoglycan layer.
Vibrio cholera is a bacillus, meaning it is shaped like a rod.
This species is able to ferment glucose, which is a unique property allowing for the differentiation of the species from other similar bacteria.
The species is unable to ferment lactose as an energy source. This inability to ferment lactose is a distinguishing factor that helps with species identification.
The species contains the enzyme oxidase. Other oxidase-positive organisms are Pseudomonas and Campylobacter jejuni.
The characteristic shape of cholera is comma-shaped when examined under a microscope.
The factor that differentiates Campylobacter jejuni from Vibrio cholera is that cholera grows in an alkaline environment.
Vibrio species are classically found in seafoods, particularly crustaceans.
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