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.
| Photobacterium marinum | |
|---|---|
| Scientific classification | |
| Domain: | Bacteria |
| Phylum: | Pseudomonadota |
| Class: | Gammaproteobacteria |
| Order: | Vibrionales |
| Family: | Vibrionaceae |
| Genus: | Photobacterium |
| Species: | P. marinum |
| Binomial name | |
| Photobacterium marinum Srinivas et al. 2013 | |
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 | + |
| 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
- Paul, Sulav Indra; Rahman, Md. Mahbubur; Salam, Mohammad Abdus; Khan, Md. Arifur Rahman; Islam, Md. Tofazzal (2021-12-15). "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. doi:10.1016/j.aquaculture.2021.737156. ISSN 0044-8486.
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