Table 6 P5CS and OAT 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

(μmol kg−1 min−1)

P5CS

OAT

P5CS

OAT

0

0

5.83 ± 0.57

3.80 ± 0.49

22.82 ± 1.23

13.57 ± 1.40

4

8.42 ± 1.02 b

3.97 ± 0.37 c

25.33 ± 1.76 c

15.21 ± 0.62 d

8

9.58 ± 0.83 b

4.61 ± 0.36 c

37.85 ± 2.97 b

38.41 ± 0.98 b

12

3.63 ± 1.38 c

7.45 ± 0.70 b

12.36 ± 1.04 d

15.73 ± 0.65 d

150

4

14.48 ± 1.56 a

7.57 ± 0.52 b

42.69 ± 2.45 b

22.13 ± 1.08 c

8

15.52 ± 1.79 a

10.47 ± 0.58 a

74.47 ± 3.18 a

55.05 ± 2.92 a

12

9.50 ± 0.73 b

9.66 ± 0.60 a

39.30 ± 2.46 b

39.54 ± 1.60 b

Significant

df

    

Treatment

1

**

**

**

**

Time

2

**

**

**

**

T × T

2

ns

*

**

**

CV

–

21.76

12.79

10.85

8.54

LSD (P = 0.05)

3.94

1.66

7.46

4.71

  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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