Study of extracellular information-processing mechanism via cytoskeletal regulation

2016 Fiscal Year Final Research Report

• Project Area: Plant cell wall as information-processing system
• Project/Area Number: 24114007
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Biological Sciences
• Research Institution: The University of Tokyo
• Principal Investigator: HASEZAWA Seiichiro 東京大学, 大学院新領域創成科学研究科, 教授 (40172902)
• Co-Investigator(Renkei-kenkyūsha): Kutsuna Natsumaro 東京大学, 大学院新領域創成科学研究科, 特任准教授 (70578559) ; Higaki Takumi 東京大学, 大学院新領域創成科学研究科, 特任准教授 (90578486) ; Miura Takashi 九州大学, 医学(系)研究科(研究院), 教授 (10324617) ; Imamura Hisako 九州大学, 医学(系)研究科(研究院), 助教 (30523790)
• Project Period (FY): 2012-06-28 – 2017-03-31
• Keywords: 細胞壁 / 細胞骨格 / イメージング / 画像定量解析

Outline of Final Research Achievements

(1) By the pharmacologically perturbing the distribution of actin microfilaments in the cell surface, both spindle, phragmoplast, and cell plate were inclined with respect to the equatorial plane to form abnormal cell plates. (2) Cellulase treatment of Arabidopsis cotyledon epidermal tissue artificially controlled the cell wall curvature where the cellulose content was reduced, and quantitatively evaluated by image analysis technique. (3) Dynamical model and interfacial equation model to understand curvature formation of leaf epidermal cells were examined. (4)Membrane transport factor PATROL1 was found to regulate stomata opening and closing by regulating the shuttle transport of water and ions between guard cells and accessory cells.

Free Research Field

植物細胞生物学