Expression of an Arabidopsis Potassium Channel Gene in Guard Cells
Open Access
- 1 October 1995
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 109 (2) , 371-374
- https://doi.org/10.1104/pp.109.2.371
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[prime] 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.Keywords
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