Studies on the mechanisms of leaf formation from the viewpoint of shoot meristem function

本研究项目旨在揭示与茎分生组织有关的叶片形成机制。我们发现了与茎分生组织维持和叶片形态发生相关的WAF1基因。WAF1在小rna的调控中起作用。在叶片原基形成的时间调控方面，我们新发现了PLA3基因。结合PLA1和PLA2的结果表明，来自已存在叶片原基的信号在新叶原基的形成中起重要作用。我们还发现了调节叶片的正面-背面、中央-外侧和基部-顶端模式的基因。

This research project has been carried out to reveal the mechanisms of leaf formation in relation to shoot meristem. We identified WAF1 gene that was associated with shoot meriatem maintenance and leaf morphogenesis. WAF1 functions in the regulation of small RNAa. As for temporal regulation of leaf primordium formation, we newly identified PLA3 gene. Together with the results of PLA1 and PLA2, it is indicated that signals from preexisting leaf primordia play important role on the formation of new leaf primordium. We also identified genes that regulate adaxial-abaxial, central-lateral and basal-apical patterns of leaves.