Table 5 SOD, CAT, APX and GR genes expression and enzymes activity in petals of rose flowers treated with PSKα at 0 and 150 nM during vase life at 20 °C for 12 days.

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

PSKα treatment

(nM)

Vase life (days)

Genes relative expression

Enzyme’s activity

(U kg−1)

SOD

CAT

APX

GR

SOD

CAT

APX

GR

0

0

6.37 ± 0.85

7.23 ± 0.57

3.78 ± 0.34

3.25 ± 0.29

58.60 ± 4.36

128.73 ± 5.40

49.42 ± 4.85

37.52 ± 6.26

4

8.66 ± 0.71 bc

5.95 ± 0.52 cd

8.67 ± 0.38 bc

6.51 ± 0.41 b

85.58 ± 2.5 b

110.53 ± 2.67 b

72.35 ± 2.33 c

42.38 ± 2.42 b

8

8.31 ± 0.64 bc

7.41 ± 0.80 c

7.34 ± 0.52 cd

8.16 ± 0.66 b

72.26 ± 1.14 c

72.26 ± 2.42 d

39.55 ± 1.84 e

33.25 ± 1.67 c

12

3.47 ± 0.27 d

2.87 ± 0.39 e

5.54 ± 0.61 d

3.65 ± 0.28 c

36.23 ± 1.09 e

29.90 ± 1.77 e

28.35 ± 1.29 f.

16.22 ± 0.91 d

150

4

10.39 ± 0.98 ab

10.32 ± 0.66 b

12.33 ± 1.11 a

7.28 ± 0.49 b

98.56 ± 4.10 a

136.55 ± 5.07 a

95.45 ± 2.67 a

48.15 ± 3.40 ab

8

12.30 ± 1.63 a

13.74 ± 1.41 a

10.60 ± 0.79 ab

11.39 ± 1.28 a

103.09 ± 4.14 a

98.87 ± 4.79 c

82.55 ± 3.54 b

52.61 ± 3.95 a

12

6.52 ± 0.47 c

4.85 ± 0.27 de

6.33 ± 0.34 d

8.45 ± 0.62 b

59.70 ± 1.89 d

39.49 ± 2.45 e

47.49 ± 1.65 d

40.43 ± 2.65 bc

Significant

df

        

Treatment

1

**

**

**

**

**

**

**

**

Time

2

**

**

**

**

**

**

**

**

T × T

2

ns

*

ns

*

*

*

**

*

CV

–

18.81

17.70

13.86

16.01

6.35

7.31

6.64

12.02

LSD (P = 0.05)

2.77

2.37

2.09

2.16

8.57

10.58

7.21

8.31

  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.
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