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Table 1 Free amino acid content in 10 or 50 μM melatonin- and serotonin-treated seedlings

From: Comparative physiological responses and transcriptome analysis reveal the roles of melatonin and serotonin in regulating growth and metabolism in Arabidopsis

Amino acid

Abbr.

Control (mg kg− 1 FW)

M10 (mg kg− 1 FW)

M50 (mg kg− 1 FW)

S10 (mg kg− 1 FW)

S50 (mg kg− 1 FW)

L-aspartic acid

Asp

72.99 ± 14.7

51.2 ± 18.8*

45.69 ± 3.1*

56.5 ± 1.4*

50.1 ± 1.7*

L-threonine

Thr

95.13 ± 7.4

107.3 ± 16.1

206.2 ± 84*

218.3 ± 86.3*

114.1 ± 13.5

L-serine

Ser

30.92 ± 4.2

36 ± 5.3

42.8 ± 9.0

36.6 ± 4.8

43.7 ± 13.2

L-glutamic acid

Glu

61.6 ± 11.3

63.5 ± 13.3

106.3 ± 13.4*

125.5 ± 24.1*

70.2 ± 14.8

Glycine

Gly

98.3 ± 7.3

101.2 ± 4.8

104.8 ± 25.4

97.9 ± 14.6

105.8 ± 22.2

L-alanine

Ala

19.34 ± 6.6

18.1 ± 2.3

20.8 ± 2.2

30.2 ± 4.2*

22.9 ± 4.9

L-cysteine

Cys

38.6 ± 8.1

41.2 ± 3.4

26.9 ± 5.8*

18.7 ± 2.8*

27.8 ± 11*

L-valine

Val

73.9 ± 8.8

67.6 ± 7.7

58.3 ± 12.8*

59.8 ± 16.9*

71.1 ± 3.1

L-methionine

Met

24.7 ± 4.5

24.9 ± 3.2

25 ± 8.2

28.6 ± 1.9

33.6 ± 10.4

L-isoleucine

Ile

55.8 ± 7.0

45.1 ± 3.2*

47.8 ± 8.3

40.9 ± 6.8*

56.4 ± 9.7

L-leucine

Leu

116.9 ± 5.4

58.9 ± 1.5*

68.1 ± 17.6*

68.2 ± 12.8*

87.3 ± 6.4*

L-tyrosine

Tyr

56 ± 15.1

59.7 ± 4.9

56.8 ± 3.8

62.6 ± 21.4

91.3 ± 17*

L-phenylalanine

Phe

54.9 ± 8.8

46.5 ± 6.7

42.9 ± 7.4

44.9 ± 17.5

65.2 ± 9.2*

L-histidine

His

56.2 ± 14.3

46.1 ± 6.3

24.2 ± 6.0*

45.4 ± 20.3

82.7 ± 18*

L-lysine

Lys

70.7 ± 1.5

153.3 ± 51.9*

150.7 ± 46.9*

163.5 ± 2.3*

90.7 ± 9.8*

L-arginine

Arg

31.2 ± 2.1

24 ± 1.2*

25.9 ± 1.6*

35.8 ± 2.9

27 ± 2.2*

L-proline

Pro

11.4 ± 1.7

23.4 ± 1.3*

37.5 ± 1.6*

33.6 ± 7*

42 ± 1.6*

Total amino acid

 

968.7 ± 31.3

968.1 ± 23.3

1090.8 ± 45*

1167.1 ± 35.2*

1082.6 ± 86.3*

  1. Error bars represent the SE. Asterisks indicate significant differences from the control (Student’s t test, P < 0.05). M10, 10 μM melatonin; M50, 50 μM melatonin; S10, 10 μM serotonin; S50, 50 μM serotonin