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Table 3 Analysis of maximal conductance (g max ), gating charge (δ), half maximal voltage (V 1/2 ) of I K,in and I K,out for the Arabidopsis lines Col-0, nia1nia2 , QC3, QL3, kc1-3, syp121, syp121ox, and dhar1-3 in both opening and non-condition

From: Protocol: optimised electrophyiological analysis of intact guard cells from Arabidopsis

Channel

Parameters

Average of 8 lines

Col-0

 

nia1nia2

 

QC3

 
  

Control

Pretreatment

Control

Pretreatment

Control

Pretreatment

Control

Pretreatment

IK,in

gmax

(mS cm-2)

2.3±0.1

(103)

2.0±0.2

(67)

2.2±0.2

(26)

2.6±0.2*

(15)

0.3±0.1

(10)

0.9±0.1**

(36)

3.4±0.3

(21)

3.2±0.2

(13)

 

δ

2.2±0.1

(103)

1.9±0.1*

(67)

2.4±0.1

(26)

2.0±0.1*

(15)

1.1±0.2

(10)

1.9±0.1**

(36)

2.1±0.2

(21)

1.9±0.2

(13)

 

V1/2

(mV)

-186±2.1

(103)

-182±1.6

(67)

-185±3

(26)

-182±2

(15)

-180±10

(10)

-179±2.5

(36)

-185±4.3

(21)

188±2.6

(13)

IK,out

gmax

(mS cm-2)

3.0±0.1

(103)

3.5±0.1*

(67)

2.6±0.2

(26)

3.8±0.6**

(15)

2.7±0.3

(10)

3.6±0.2*

(36)

3.9±0.3

(21)

3.5±0.3

(13)

 

δ

1.6±0.1

(103)

1.6±0.1

(67)

1.8±0.1

(26)

1.6±0.1

(15)

1.5±0.1

(10)

1.5±0.1

(36)

1.5±0.2

(21)

1.5±0.2

(13)

 

V1/2

(mV)

0.9±1.7

(103)

-3.6±1.7

(67)

6.0±2.6

(26)

0.4±2.3

(15)

-10±4.6

(10)

-2.4±2.4

(36)

-4.1±4.1

(21)

-6.5±5.7

(13)

  1. Data are means ± SE of (n) experiments.
  2. * P < 0.05; **P < 0.01 as compared with control.