The secretory peptide gene EPF1 enforces the stomatal one-cell-spacing rule
The secretory peptide gene EPF1 enforces the stomatal one-cell-spacing rule
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DOI：
10.1101/gad.1550707
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发表时间：
2007-07-15
影响因子：
10.5
通讯作者：
Kakimoto, Tatsuo
中科院分区：
文献类型：
--
作者：
Hara, Kenta;Kajita, Ryoko;Kakimoto, Tatsuo
气孔是陆地植物的创新，允许调节气体交换。气孔前体细胞是由细胞不对称分裂产生的，一旦形成，就向它们的邻居发出信号，以抑制直接接触的气孔前体细胞的形成。我们报告了一个基因拟南芥，表皮图案因子1（EPF1），编码一个小的分泌肽在气孔细胞和前体细胞中表达，并控制气孔图案通过调节不对称细胞分裂。EPF1活性依赖于TOO MANY MOUTHS受体样蛋白和ERECTA家族受体激酶，表明EPF1可能提供由这些受体解释的位置线索。
Stomata are innovations of land plants that allow regulated gas exchange. Stomatal precursor cells are produced by asymmetric cell division, and once formed, signal their neighbors to inhibit the formation of stomatal precursors in direct contact. We report a gene of Arabidopsis thaliana, EPIDERMAL PATTERNING FACTOR 1 ( EPF1) that encodes a small secretory peptide expressed in stomatal cells and precursors and that controls stomatal patterning through regulation of asymmetric cell division. EPF1 activity is dependent on the TOO MANY MOUTHS receptor-like protein and ERECTA family receptor kinases, suggesting that EPF1 may provide a positional cue interpreted by these receptors.