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Table 2 Cellular fatty acids composition of M. aloeverae MCC 2184T and M. yunnanensis DSM 21948T in variable conditions of salt

From: Response of cellular fatty acids to environmental stresses in endophytic Micrococcus spp.

FAME

Micrococcus aloeverae MCC 2184T

Micrococcus yunnanensis DSM 21948T

0.5 %

5 %

10 %

PV

0.5 %

5 %

10 %

PV

Saturated

 12:0

0.17 ± 0.05

nd

nd

*

nd

nd

nd

*

 14:0

1.59 ± 0.27

0.43 ± 0.01

0.52 ± 0.06

0.00

0.52 ± 0.09

0.31 ± 0.06

0.74 ± 0.04

0.00

 16:0

8.74 ± 0.37

1.08 ± 0.15

1.02 ± 0.12

0.00

1.16 ± 0.12

0.81 ± 0.07

2.21 ± 0.27

0.00

 17:0

2.01 ± 0.66

nd

nd

*

nd

nd

nd

*

Iso-branched chain

 13:0 iso

0.19 ± 0.05

0.27 ± 0.04

0.97 ± 0.15

0.00

0.27 ± 0.03

0.35 ± 0.01

0.52 ± 0.03

0.00

14:0 iso

1.85 ± 0.33

5.3 ± 0.35

8.74 ± 0.92

0.00

2.07 ± 0.15

2.93 ± 0.45

4.54 ± 0.39

0.00

15:0 iso

15.3 ± 1.96

12.67 ± 1.29

20.53 ± 1.73

0.00

10.04 ± 0.91

12.74 ± 0.64

16.72 ± 1.04

0.00

16:0 iso

7.39 ± 0.60

9.97 ± 0.99

5.48 ± 0.65

0.00

11.51 ± 0.42

9.56 ± 0.18

11.47 ± 1.48

0.06

 17:0 iso

0.89 ± 0.05

0.29 ± 0.03

0.24 ± 0.03

0.00

0.52 ± 0.02

0.48 ± 0.02

0.66 ± 0.11

0.04

Anteiso-branched chain

 11:0 ante

nd

nd

0.18 ± 0.05

*

nd

nd

nd

*

 13:0 ante

0.23 ± 0.01

0.81 ± 0.07

1.62 ± 0.23

0.00

0.41 ± 0.01

0.57 ± 0.04

0.71 ± 0.09

0.00

15:0 ante

54.08 ± 1.54

64.72 ± 0.16

55.38 ± 2.76

0.00

63.1 ± 0.48

66.07 ± 1.37

57.31 ± 3.12

0.00

17:0 ante

7.68 ± 1.38

3.48 ± 0.56

1.52 ± 0.12

0.00

10.2 ± 0.62

6.1 ± 0.41

5.12 ± 0.05

0.00

Unsaturated

 16:1 w5c

nd

nd

1.36 ± 0.05

*

nd

nd

nd

*

 14:1 w5c

nd

nd

2.83 ± 0.12

0.00

nd

nd

nd

*

 15:1 w5c

nd

nd

5.33 ± 0.57

0.00

nd

nd

nd

*

 16:1 w5c

nd

nd

1.36 ± 0.01

0.00

nd

nd

nd

*

 16:1 iso H

nd

nd

nd

*

0.28 ± 0.01

nd

nd

0.00

 17:1 ante w9c

nd

nd

nd

*

0.32 ± 0.05

nd

nd

0.00

Hydroxy

 15:0 2OH

0.15 ± 0.01

0.2 ± 0.02

0.24 ± 0.06

0.09

nd

0.17 ± 0.01

nd

*

 16:0 iso 3OH

nd

0.11 ± 0.01

nd

*

nd

0.21 ± 0.01

nd

*

 17:0 2OH

nd

nd

nd

*

nd

0.16 ± 0.01

nd

*

  1. Data are means of three biological replicates and are mole % of total fatty acids contents; values after (±) are standard deviations
  2. In most of the cases, values of standard errors are almost half the values of standard deviations (data not shown)
  3. Values in bold represent quantitatively dominant fatty acids
  4. nd not detected; PV p value of ANOVA; * p values are not calculated due to single mean
  5. 0.5 % salt was treated as a control for comparison of the increasing effects of salinity