2004/06/03 by Dominique C. Bergmann, Wolfgang Lukowitz, Chris Somerville · 5 citations
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Plant Molecular Biology Research #Plant Reproductive Biology #Plant nutrient uptake and metabolism
paper · doi:10.1126/science.1096014
openalex publication_date 2004/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Stomata are epidermal structures that modulate gas exchange between a plant and its environment. During development, stomata are specified and positioned nonrandomly by the integration of asymmetric cell divisions and intercellular signaling. The Arabidopsis mitogen-activated protein kinase kinase kinase gene, YODA, acts as part of a molecular switch controlling cell identities in the epidermis. Null mutations in YODA lead to excess stomata, whereas constitutive activation of YODA eliminated stomata. Transcriptome analysis of seedlings with altered YODA activity was used to identify potential stomatal regulatory genes. A putative transcription factor from this set was shown to regulate the developmental behavior of stomatal precursors.