新学術領域「植物細胞壁機能」

1. 新学術領域「植物細胞壁機能」 Plant cell growth in the wall Dr. Keiko Sugimoto (RIKEN, CSRS) Plant organ growth relies on the coordinated progression of cell proliferation, cell expansion and cell differentiation. Many regulators of organ growth promote or repress cell proliferation, thus a continuous supply of new cells through the progression of the mitotic cell cycle serves as a major driver of organ growth in higher plants. Unlike animal cells, plant cells also undergo extensive post-mitotic cell expansion, and increasing cell size by cell expansion is also vital for the full growth and development of plant organs. The transition from cell proliferation to cell expansion or cell differentiation is often accompanied by the transition from the mitotic cycle into the endocycle, and we are just beginning to understand how these closely linked cellular processes are regulated during post-embryonic plant development. In my talk I will describe our recent progress in elucidating how developmental and environmental signals program cell differentiation and how an increase in ploidy by the endocycle contributes to this control. • 発表言語は英語です。 • このセミナーは、生命科学研究科の単位認定セミナー(2単位)です。 2013年11月12日（水） 15:00〜17:00 東北大学青葉山キャンパス 理学部生物棟1F 大会議室 （仙台市青葉区荒巻字青葉6-3） 連絡先　西谷和彦 022-795-6700 nishitan@m.tohoku.ac.jp