Investigating the role of potassium channel KAT1 in NO mediated stomatal closure
KAT1, a hyperpolarization-activated, inward-rectifying K+ channel is one of the main transportersparticipating in guard cell volume regulation. The voltage-dependence of KAT1 channel is regulated by several intracellular factors, including pH, ATP and cGMP (Hoshi 1995). NO, a regulator of a branch o...
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| Dokumentumtípus: | Cikk |
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2008
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| Sorozat: | Acta biologica Szegediensis
52 No. 1 |
| Kulcsszavak: | Természettudomány, Biológia |
| Online Access: | http://acta.bibl.u-szeged.hu/22934 |
| Tartalmi kivonat: | KAT1, a hyperpolarization-activated, inward-rectifying K+ channel is one of the main transportersparticipating in guard cell volume regulation. The voltage-dependence of KAT1 channel is regulated by several intracellular factors, including pH, ATP and cGMP (Hoshi 1995). NO, a regulator of a branch of ABA signalling pathways in guard cells decreases the Ca2+-dependent inward potassium current by increasing the cytosolic free Ca2+ concentration. Based on the Ca2+-independent feature of KAT1 homotetramer protein, we aimed to examine the direct and indirect effects of NO on this channel. |
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| Terjedelem/Fizikai jellemzők: | 163-165 |
| ISSN: | 1588-385X |