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Expression of an Arabidopsis potassium channel gene in guard cells
R L Nakamura1, W L McKendree, R E Hirsch
1Department of Biochemistry, Northwestern University, Evanston, Illinois 60208, USA.
Plant Physiology
|October 1, 1995
Abstract:
The Arabidopsis thaliana KAT1 cDNA encodes a voltage-gated inward-rectifying K+ channel. A KAT1 genomic DNA clone was isolated and sequenced, and a 5' promoter and coding sequences containing eight introns were identified. Reporter gene analysis of transgenic plants containing the KAT1 promoter fused to bacterial beta-glucuronidase showed robust beta-glucuronidase activity primarily in guard cells.