Table 2 SOD, CAT, APX and GR activity accompanying by endogenous H2O2 accumulation during rose flowers development from bud opening to petal senescence.

From: Phytosulfokine α (PSKα) delays senescence and reinforces SUMO1/SUMO E3 ligase SIZ1 signaling pathway in cut rose flowers (Rosa hybrida cv. Angelina)

Flower development stages

SOD activity

(U kg−1)

CAT activity

(U kg−1)

APX activity

(U kg−1)

GR activity

(U kg−1)

H2O2 accumulation

(μmol kg−1 FW)

Stage 1

35.29 ± 2.37 d

88.18 ± 5.14 b

18.97 ± 1.30 c

12.36 ± 1.01 c

15.60 ± 0.84 c

Stage 2

43.36 ± 3.35 d

115.50 ± 7.79 a

22.47 ± 1.62 c

17.87 ± 1.85 c

19.71 ± 2.09 c

Stage 3

69.42 ± 5.37 c

128.74 ± 6.03 a

48.73 ± 4.23 b

38.34 ± 3.45 a

22.80 ± 1.93 c

Stage 4

128.74 ± 5.73 a

113.33 ± 7.37 a

69.83 ± 5.64 a

44.99 ± 2.90 a

36.04 ± 2.41 b

Stage 5

94.48 ± 3.59 b

78.51 ± 3.80 b

42.87 ± 4.38 b

29.20 ± 3.30 b

86.29 ± 4.59 a

Stage 6

46.82 ± 3.76 d

50.18 ± 2.77 c

28.70 ± 3.14 c

17.53 ± 0.94 c

89.01 ± 4.46 a

Significant

**

**

**

**

**

CV

10.42

10.44

16.69

16.01

11.74

LSD (P < 0.05)

12.92

17.78

11.46

7.61

9.38

  1. Data shown are mean values of n = 3, and the error bars represent standard errors of the means. Mean values followed by different letters indicate they are different by LSD test at P < 0.05.
Back to article page