期刊
PLANT SIGNALING & BEHAVIOR
卷 6, 期 7, 页码 1069-1071出版社
TAYLOR & FRANCIS INC
DOI: 10.4161/psb.6.7.15254
关键词
GTL1; transcription factor; SDD1; water use efficiency; drought; stomatal density
资金
- National Science Foundation [MCB0424850]
- Binational Agricultural Research and Development [103314]
Astoma (pl. stomata) is the pore formed by two guard cells found predominantly in the leaf epidermis. Plants control stomatal aperture (opening and closing) and/or number (density) to regulate carbon dioxide (CO2) uptake and water loss (transpiration), which is necessary to optimize plant growth, development, and fitness in response to various environmental conditions. Recently, we identified Arabidopsis GT2-LIKE 1 (GTL1) as a transcriptional repressor of STOMATAL DENSITY AND DISTRIBUTION 1 (SDD1), a negative regulator of stomatal density. GTL1 directly interacts with the SDD1 promoter regulating stomatal density, transpiration and water use efficiency (WUE). Here we discuss potential GTL1 orthologs in other plant species.
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