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Table 2 Biochemical and physiological characteristics of Streptomyces spp. AJ8 isolated from Kovalam solar salt works in comparison with reference Streptomyces strains

From: Haloalkaliphilic Streptomyces spp. AJ8 isolated from solar salt works and its’ pharmacological potential

Sl. no Confirmative tests AJ8a Reference strains
AJ9a RJ1b RJ2c
1 Grams staining + + + +
2 Motility Non-motile Non-motile Motile Motile
  Biochemical tests     
3 Methyl Red (MR) + + +
4 Voges Proskauer (VP)
5 Indole production
6 Nitrate reduction + + + +
7 TSI test + + + +
8 H2S production
9 Urease activity
10 Starch hydrolysis + +
Carbon source (1 % w/v)     
11 Glucose + + + +
12 Sucrose + + + +
13 Maltose + + + +
14 Mannitol + + + +
15 Starch + + +
16 Sorbitol + + +
Nitrogen sources (1 % w/v)     
17 Histidine ++ + + +
18 Valine ++ + ++ +
19 Alanine ++ + + +
20 Methionine + + ++ +
21 Tryptophan + + + +
Effect of pH     
22 5.5 + + + +
23 6.5 + + + +
24 7.5 + + ++ ++
25 8.5 ++ ++ + +
26 9.5 +++ +
27 10.5 +
Effect of NaCl concentration (w/v)     
28 2 ++ + ++ ++
29 4 ++ + ++ ++
30 6 +++ ++ +++ +++
31 8 ++++ +++ ++ ++
32 10 ++ ++ + +
  1. a Streptomyces spp. AJ8
  2. b Streptomyces spp. AJ9: Jenifer et al. (2013); Streptomyces spp. RJ1
  3. c Streptomyces spp. RJ2: Remya (2013). All reference strains were isolated from solar salt works