Plant Light Acclimation Research Group

Plant Light Acclimation Reserch Group

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Faculty staff

Prof. Dr. Wataru SAKAMOTO
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Sonoda2.jpg Assoc. Prof. Dr. Ryo MATSUSHIMA
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kato photo Assist. Prof. Dr. Yusuke KATO
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Lectures: Model Plant Genetics and Breeding, Plant Physiology and Genetics
Keywords: Photosynthesis; Organelle structure and development; Chloroplast; Light

Summary of main research topics

Photosynthesis and chloroplast biogenesis: Understanding to innovation
Our life on earth cannot continue without the atmospheric environment, which is maintained by oxygenic photosynthesis. Plants perform photosynthesis in chloroplasts, where light energy is converted into chemical energy by a series of electrochemical reactions. In contrast, sessile land plants are exposed incessantly to excess light energy or harsh atmospheric environments that engender ‘photodamage’. How do plants cope with such photosynthetic inactivation? What are the key elements to maintaining or even maximizing chloroplast functions? Our group studies various aspects of chloroplast development and photosynthesis. Through understanding of the factors involved in photoprotection and chloroplast function, we aim at improving crop productivity against atmospheric stress over the long term.

Latest publications (for complete and most current publications visit group pages)

(1) Matsushima, R., Maekawa, M., Kusano, M., Tomita, K., Kondo, H., Nishimura, H., Crofts, N., Fujita, N. and Sakamoto, W. Amyloplast membrane protein SUBSTANDARD STARCH GRAIN6 controls starch grain size in rice endosperm. Plant Physiol. 170: 1445-1459. (2016. 1.)
(2) Toyosawa, Y., Kawagoe, Y., Matsushima, R., Crofts, N., Ogawa, M., Fukuda, M., Kumamaru, T., Okazaki, Y., Kusano, M., Saito, K., Toyooka, K., Sato, M., Ai, Y., Jane, J.-L., Nakamura, Y. and Fujita, N. Deficiency of Starch Synthase IIIa and IVb alters starch granule morphology from polyhedral to spherical in rice endosperm. Plant Physiol. 170: 1225-1270. (2016. 1.)
(3) 坂本亘 光合成の効率向上とスーパーバイオマス.スーパーバイオマス: 植物に学ぶ、植物を活かす(福田裕穂、稲田のりこ編), 慶應大学出版会 pp. 19-39. (2016. 3.)
(4) Zhang, L., Kusaba, M., Tanaka, A. and Sakamoto, W. Protection of Chloroplast Membranes by VIPP1 Rescues Aberrant Seedling Development in Arabidopsis nyc1 Mutant. Front Plant Sci. 28; 7: 533. (2016. 4.)
(5) Zhang, L., Kondo, H., Kamikubo, H., Kataoka, M. and Sakamoto, W. VIPP1 Has a Disordered C-Terminal Tail Necessary for Protecting Photosynthetic Membranes against Stress. Plant Physiol. 171: 1983-95. (2016. 7.)
(6) Nishimura, K., Kato, Y. and Sakamoto, W. Chloroplast Proteases: Updates on Proteolysis within and across Suborganellar Compartments. Plant Physiol. 171: 2280-93. (2016. 8.)
(7) Nishimura, K., Kato, Y. and Sakamoto, W. Essentials of Proteolytic Machineries in Chloroplasts. Mol. Plant. 16: 30166-6. (2016. 8.)
(8) Tominaga, J., Mizutani, H., Horikawa, D., Nakahara, Y., Takami, T., Sakamoto, W., Sakamoto, A. and Shimada, H. Rice CYO1, an ortholog of Arabidopsis thaliana cotyledon chloroplast biogenesis factor AtCYO1, is expressed in leaves and involved in photosynthetic performance. J. Plant Physiol. 207: 78-83. (2016. 12.)