The research group of Professor Takeshi Miura and Assistant Professor Toshiko Imamura of the Graduate School of Medicine, Kyushu University has collaborated with the University of Tokyo and L-Pixel Co., Ltd. to elucidate the mechanism by which the complex shapes of the epidermal cells of plants are formed for the first time in the world. Announced that it was done.

 The cells on the leaf surface of dicotyledonous plants form a jigsaw puzzle-like structure.Many genes involved in this phenomenon have been identified, but the mechanism by which these interactions form a shape remains largely unknown.Professor Miura et al. Started joint research based on the study of the mechanism by which the suture line of the skull bends, thinking that there is something in common with the mechanism of pattern formation in the cell wall of plants.

 The research group mathematically modeled the molecular circuit of synthesis-decomposition of the cell wall of plants, and reproduced the curvature formation of the cell wall by numerical simulation.This model was found to be exactly the same as the skull suture curvature formation model previously used by the Kyushu University group.

 In response to this, an experimental group of botanists at the University of Tokyo conducted an experiment to promote the decomposition of the cell wall and observe the shape change, and verified the result with a mathematical model to keep the cell wall at a certain thickness. We have elucidated a part of the mechanism that forms a curved structure.In addition, we predicted that the angle of the three-pronged part of the cell wall at the joint of cells would approach 120 degrees with a mathematical model, and confirmed it by verification using image processing technology.

 In this way, through "super" interdisciplinary research in which mathematics mediates between medicine and botany, we have elucidated the mechanism of plant cell shaping that was completely unknown until now.It is expected that the mathematical model obtained in this research will lead to the development of a field of plant research, which is the elucidation of the mechanism of cell wall curvature.

Tokyo University

Established in the 10th year of the Meiji era.A university with the longest history in Japan and at the forefront of Japanese knowledge

The University of Tokyo was established in 1877 (Meiji 10) by integrating the Tokyo Kaisei School and the Tokyo Medical School.Since its establishment, it has developed education and research in a unique way in the world as a leading university in Japan and an academic center for the fusion of East and West cultures.As a result, many human resources have been produced in a wide range of fields, and many research achievements […]

Kyushu University

A university that creates "comprehensive knowledge" that opens up the future and drives social change

Kyushu University, which celebrated its 111th anniversary this year, is a core university with 12 faculties and 19 faculties.We have been designated as a "designated national university corporation" that can be an international base by developing the world's highest level of outstanding education and research activities.From the humanities and sociology that we have cultivated so far to the natural sciences, and even the design-related "knowledge" […]

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