Photobacterium marinum

Photobacterium marinum is a gram-negative, oxidase and catalase positive, motile bacteria of the genus Photobacterium.[1] Photobacterium marinum are commonly found in marine environment.[1] S.I. Paul et al. (2021)[1] isolated, characterized and identified Photobacterium marinum from marine sponges of the Saint Martin's Island Area of the Bay of Bengal, Bangladesh.

Biochemical characteristics of Photobacterium marinum

Colony, morphological, physiological, and biochemical characteristics of Photobacterium marinum are shown in the Table below.[1]

Test type	Test	Characteristics
Colony characters	Size	Medium
	Type	Round
	Color	Creamy
	Shape	Convex
Morphological characters	Shape	Rod
Physiological characters	Motility	+
Physiological characters	Growth at 6.5% NaCl	+
Biochemical characters	Gram’s staining	–
	Oxidase	+
	Catalase	+
	Oxidative-Fermentative	Oxidative
	Motility	+
	Methyl Red	+
	Voges-Proskauer	–
	Indole	+
	H₂S Production	–
	Urease	V
	Nitrate reductase	+
	β-Galactosidase	–
Hydrolysis of	Gelatin	+
	Aesculin	V
	Casein	V
	Tween 40	+
	Tween 60	+
	Tween 80	+
Acid production from	Glycerol	+
	Galactose	+
	D-Glucose	+
	D-Fructose	V
	D-Mannose	–
	Mannitol	V
	N-Acetylglucosamine	V
	Amygdalin	+
	Maltose	V
	D-Melibiose	+
	D-Trehalose	+
	Glycogen	V
	D-Turanose	V

Note: + = Positive; – =Negative; V =Variable (+/–)

References

"Identification of marine sponge-associated bacteria of the Saint Martin's island of the Bay of Bengal emphasizing on the prevention of motile Aeromonas septicemia in Labeo rohita". Aquaculture. 545: 737156. 2021-12-15. doi:10.1016/j.aquaculture.2021.737156. ISSN 0044-8486.

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[:0-1] "Identification of marine sponge-associated bacteria of the Saint Martin's island of the Bay of Bengal emphasizing on the prevention of motile Aeromonas septicemia in Labeo rohita". Aquaculture. 545: 737156. 2021-12-15. doi:10.1016/j.aquaculture.2021.737156. ISSN 0044-8486.