Skip to main content

Table 7 NKZ-259 cell viability rate in different carriers (original cell count in each carrier = 5.6 × 106 CFU/mL)

From: Indole-3-acetic acid production by Streptomyces fradiae NKZ-259 and its formulation to enhance plant growth

Carriers

Cell population (CFU/mL)

1 month

2 months

3 months

4 months

Kaolin (4 °C)

5.4 ± 0.15 × 106 a

5.2 ± 0.15 × 106 a

5.2 ± 0.15 × 106 a

5.2 ± 0.15 × 106 a

Kaolin (RT)

5.3 ± 0.14 × 106 a

2.4 ± 0.15 × 106 b

2.3 ± 0.2 × 106 b

1.7 ± 0.2 × 106 b

Talc (4 °C)

1.4 ± 1.15 × 105 b

6.5 ± 0.20 × 104 c

5.1 ± 0.3 × 104 c

3.6 ± 0.25 × 104 c

Talc (RT)

1.0 ± 0.9 × 105 b

5.5 ± 0.25 × 104 c

5.0 ± 0.4 × 104 c

2.1 ± 0.2 × 104 c

Liquid (4 °C)

1.3 ± 0.15 × 105 b

1.1 ± 0.11 × 104 c

1.2 ± 0.15 × 103 c

0.6 ± 0.15 × 103 c

Liquid (RT)

1.0 ± 0.9 × 105 b

1.1 ± 0.11 × 104 c

1.2 ± 0.2 × 103 c

0.4 ± 0.15 × 103 c

  1. Note: 4 °C = storage at 4 °C in a refrigerator; RT = room temperature storage (27 °C)