Differential Abscisic Acid Regulation of Guard Cell Slow Anion Channels in Arabidopsis Wild-Type and abi1 and abi2 Mutants

1997 ◽  
Vol 9 (3) ◽  
pp. 409 ◽  
Author(s):  
Zhen-Ming Pei ◽  
Kazuyuki Kuchitsu ◽  
John M. Ward ◽  
Martin Schwarz ◽  
Julian I. Schroeder
Keyword(s):  
Abscisic Acid ◽  
Guard Cell ◽  
Wild Type ◽  
Anion Channels

scholarly journals Differential abscisic acid regulation of guard cell slow anion channels in Arabidopsis wild-type and abi1 and abi2 mutants.

1997 ◽  
Vol 9 (3) ◽  
pp. 409-423 ◽  
Author(s):  
Z M Pei ◽  
K Kuchitsu ◽  
J M Ward ◽  
M Schwarz ◽  
J I Schroeder
Keyword(s):  
Abscisic Acid ◽  
Guard Cell ◽  
Wild Type ◽  
Anion Channels

Regulation of Abscisic Acid-Induced Stomatal Closure and Anion Channels by Guard Cell AAPK Kinase

Science ◽  
2000 ◽  
Vol 287 (5451) ◽  
pp. 300-303 ◽  
Author(s):  
J. Li
Keyword(s):  
Abscisic Acid ◽  
Guard Cell ◽  
Stomatal Closure ◽  
Anion Channels

scholarly journals Abscisic acid regulation of guard-cell K+ and anion channels in G - and RGS-deficient Arabidopsis lines

2008 ◽  
Vol 105 (24) ◽  
pp. 8476-8481 ◽  
Author(s):  
L.-M. Fan ◽  
W. Zhang ◽  
J.-G. Chen ◽  
J. P. Taylor ◽  
A. M. Jones ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Guard Cell ◽  
Anion Channels

scholarly journals Abscisic Acid–Responsive Guard Cell Metabolomes of Arabidopsis Wild-Type and gpa1 G-Protein Mutants

2013 ◽  
Vol 25 (12) ◽  
pp. 4789-4811 ◽  
Author(s):  
Xiaofen Jin ◽  
Rui-Sheng Wang ◽  
Mengmeng Zhu ◽  
Byeong Wook Jeon ◽  
Reka Albert ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
G Protein ◽  
Guard Cell ◽  
Wild Type ◽  
Protein Mutants

scholarly journals Optogenetic control of the guard cell membrane potential and stomatal movement by the light-gated anion channel GtACR1

2021 ◽  
Vol 7 (28) ◽  
pp. eabg4619
Author(s):  
Shouguang Huang ◽  
Meiqi Ding ◽  
M. Rob G. Roelfsema ◽  
Ingo Dreyer ◽  
Sönke Scherzer ◽  
...  
Keyword(s):  
Guard Cell ◽  
Stomatal Closure ◽  
Green Light ◽  
Anion Channel ◽  
Guard Cells ◽  
Wild Type ◽  
Anion Channels ◽  
Light Pulses ◽  
Cell Turgor ◽  
Open Question

Guard cells control the aperture of plant stomata, which are crucial for global fluxes of CO2 and water. In turn, guard cell anion channels are seen as key players for stomatal closure, but is activation of these channels sufficient to limit plant water loss? To answer this open question, we used an optogenetic approach based on the light-gated anion channelrhodopsin 1 (GtACR1). In tobacco guard cells that express GtACR1, blue- and green-light pulses elicit Cl− and NO3− currents of −1 to −2 nA. The anion currents depolarize the plasma membrane by 60 to 80 mV, which causes opening of voltage-gated K+ channels and the extrusion of K+. As a result, continuous stimulation with green light leads to loss of guard cell turgor and closure of stomata at conditions that provoke stomatal opening in wild type. GtACR1 optogenetics thus provides unequivocal evidence that opening of anion channels is sufficient to close stomata.

scholarly journals Cytosolic abscisic acid activates guard cell anion channels without preceding Ca2+ signals

2005 ◽  
Vol 102 (11) ◽  
pp. 4203-4208 ◽  
Author(s):  
V. Levchenko ◽  
K. R. Konrad ◽  
P. Dietrich ◽  
M. R. G. Roelfsema ◽  
R. Hedrich
Keyword(s):  
Abscisic Acid ◽  
Guard Cell ◽  
Anion Channels
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