Staphylococcus arlettae
# Staphylococcus arlettae

Staphylococcus arlettae is a gram-positive, coagulase-negative member of the bacterial genus Staphylococcus consisting of clustered cocci. It has been isolated from the skin of mammals and birds and is novobiocin resistant. A strain of this species isolated from effluent from a textile factory was found to be able to degrade azo dyes.

Some strains of S. arlettae are highly salt tolerant and commonly found in marine environment. S.I. Paul et al. (2021) isolated and identified salt tolerant strains of S. arlettae (strains ISP142A, ISP172C and ISP192A) from Cliona viridis sponges of the Saint Martin's Island Area of the Bay of Bengal, Bangladesh.

## Biochemical characteristics of S. arlettae

Colony, morphological, physiological, and biochemical characteristics of marine S. arlettae are shown in the Table below.

| Test type | Test | Characteristics |
| - | - | - |
| Colony characters | Size | Small / Medium |
| Colony characters | Type | Round |
| Colony characters | Color | Whitish |
| Colony characters | Shape | Convex |
| Morphological characters | Shape | Cocci |
| Physiological characters | Motility | - |
| Physiological characters | Growth at 6.5% NaCl | + |
| Biochemical characters | Gram's staining | + |
| Biochemical characters | Oxidase | – |
| Biochemical characters | Catalase | + |
| Biochemical characters | Oxidative-Fermentative | Oxidative |
| Biochemical characters | Motility | – |
| Biochemical characters | Methyl Red | – |
| Biochemical characters | Voges-Proskauer | + |
| Biochemical characters | Indole | – |
| Biochemical characters | $H_2S$ Production | + |
| Biochemical characters | Urease | + |
| Biochemical characters | Nitrate reductase | + |
| Biochemical characters | β-Galactosidase | – |
| Hydrolysis of | Gelatin | + |
| Hydrolysis of | Aesculin | + |
| Hydrolysis of | Casein | + |
| Hydrolysis of | Tween 40 | + |
| Hydrolysis of | Tween 60 | + |
| Hydrolysis of | Tween 80 | + |
| Acid production from | Glycerol | + |
| Acid production from | Galactose | + |
| Acid production from | D-Glucose | + |
| Acid production from | D-Fructose | + |
| Acid production from | D-Mannose | + |
| Acid production from | Mannitol | + |
| Acid production from | N-Acetylglucosamine | + |
| Acid production from | Amygdalin | + |
| Acid production from | Maltose | + |
| Acid production from | D-Melibiose | + |
| Acid production from | D-Trehalose | + |
| Acid production from | Glycogen | + |
| Acid production from | D-Turanose | + |

Note: + = Positive, – =Negative

