2007/07/15 by Kenta Hara, Ryoko Kajita, Keiko U. Torii +2 · 7 citations
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Photosynthetic Processes and Mechanisms #Plant Molecular Biology Research #Plant Reproductive Biology
paper · pdf · doi:10.1101/gad.1550707
openalex publication_date 2007/07/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
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.