Interdisciplinary Research Organization, University of Miyazaki, Gakuen Kibanadai-nishi, Miyazaki, Japan.
Int Rev Cell Mol Biol. 2011;286:67-106. doi: 10.1016/B978-0-12-385859-7.00002-1.
Epidermis cell differentiation in Arabidopsis thaliana is a model system for understanding the mechanisms leading to the developmental end state of plant cells. Both root hairs and trichomes differentiate from epidermal cells and molecular genetic analyses using Arabidopsis mutants have demonstrated that the differentiation of root hairs and trichomes is regulated by similar molecular mechanisms. Molecular-genetic approaches have led to the identification of many genes that are involved in epidermal cell differentiation, most of which encode transcription factors that induce the expression of genes active in both root hair and trichome development. Control of cell growth after fate determination has also been studied using Arabidopsis mutants.
拟南芥表皮细胞分化是研究导致植物细胞发育终态的机制的模式系统。根毛和表皮毛都由表皮细胞分化而来，利用拟南芥突变体的分子遗传学分析表明，根毛和表皮毛的分化受相似的分子机制调控。分子遗传学方法已鉴定出许多参与表皮细胞分化的基因，其中大多数编码转录因子，可诱导在根毛和表皮毛发育中均有活性的基因表达。利用拟南芥突变体也研究了命运决定后细胞生长的控制。
