Table 1 Morphological, chemotaxonomical, physiological and biochemical characteristics of Streptomyces levis strain HFM-2:

Morphological characteristics

Spore surface

Smooth

Aerial mycelium color

Light pink

Substrate mycelium color

Dark Pink

Spore morphology

Spiral type

Chemotaxonomical characteristics

L-L Diaminopimelic acid

 + 

Whole-cell sugar

–

Physiological characteristics

Optimum pH for growth

6.0

Optimum temperature for growth

28 °C

Temperature range for growth

15 to 45 °C

pH range for growth

2.0 to 11.0

Production of melanoid pigment

(Black)

NaCl tolerance

Up to 2%

Biochemical characteristics

MRVP

–

Starch hydrolysis

 + 

Cellulase production

–

Urease production

 + 

Esculin hydrolysis

–

Indole production

–

Citrate utilization

 + 

Nitrate reduction

–

Gelatin hydrolysis

–

Catalase test

 + 

H₂S production

–

Oxidase test

–

Utilization of carbon source

Arabinose

 + 

Xylose

 + 

Rhamnose

 + 

Glucose

 + 

Lactose

–

Raffinose

 + 

Trehalose

–