Table 7 GAD, GABA-T and SSADH 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)

GAD

GABA-T

SSADH

GAD

GABA-T

SSADH

0

0

4.26 ± 0.28

3.57 ± 34

2.96 ± 0.31

54.67 ± 4.42

27.48 ± 1.46

17.20 ± 1.21

4

10.04 ± 0.61 b

3.98 ± 0.25 d

4.34 ± 0.14 c

59.26 ± 3.60 b

30.78 ± 1.54 c

21.46 ± 0.65 d

8

5.33 ± 0.62 cd

5.32 ± 0.35 c

7.50 ± 0.27 b

42.35 ± 1.32 c

32.29 ± 1.65 c

32.37 ± 1.61 c

12

2.64 ± 0.18 d

6.61 ± 0.35 b

8.55 ± 0.26 b

29.38 ± 0.97 d

51.73 ± 0.94 ab

42.69 ± 1.66 b

150

4

16.19 ± 1.74 a

4.28 ± 0.16 d

5.28 ± 0.21 c

67.69 ± 1.92 a

35.37 ± 1.61 c

26.39 ± 0.78 d

8

7.74 ± 0.75 bc

7.41 ± 0.34 b

10.77 ± 0.88 a

62.66 ± 1.51 ab

46.98 ± 1.74 b

46.69 ± 2.24 b

12

3.52 ± 0.83 d

10.39 ± 0.44 a

11.83 ± 0.64 a

48.89 ± 3.40 c

57.62 ± 3.25 a

54.07 ± 2.30 a

Significant

df

      

Treatment

1

**

**

**

**

**

**

Time

2

**

**

**

**

**

**

T × T

2

*

**

*

*

*

*

CV

–

21.01

9.00

10.36

7.88

7.84

7.75

LSD (P = 0.05)

1.01

1.48

7.25

5.92

5.14

  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