Dr. Gyung-Tae Kim （Department of Molecular Biotechnology Dong-A University）

2009年11月30日(月) 14:30 より 15:30 まで

明大寺地区　第１セミナー室（132-134）

共生システム研究部門 川口　正代司 内線7564

Cell division plays a key role in proper development and appropriate shape during plant development. Recent study of Kip-related proteins (KRPs), which are inhibitor of cyclin-dependent kinase (CDK), indicated that negative regulation of cell division plays an important role in plant morphogenesis. To investigate how cell division affects the architecture of shoot apical meristem (SAM) and leaf morphogenesis, we have characterized transgenic plants overexpressing KRP1, KRP3, KRP6, and KRP7 genes which are highly expressed in the vicinity of SAM and leaves. On the other hand, to investigate the regulatory mechanism between cell division and cell differentiation at the initiation of organ formation, we characterized transgenic plants misexpressing KRP1 under the promoter of CLAVATA3 (CLV3) gene which regulate meristem maintenance. Base on the results, we will provide the phenotypic changes in SAM and leaves, ploidy changes in leaf cells and discuss about the roles of KRP in the regulation of cell division in SAM and leaf development. ※ セミナーは日本語で行います。