Plant Cytomolecular Biochemistry

Research Groups

Group of Functional Biomolecular Discovery

Staff

Assoc. Prof. Dr. SUGIMOTO Manabu
E-mail：manabus＠（@okayama-u.ac.jp）
Environmental Stress Biochemistry

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Asst. Prof. Dr. RIKIISHI Kazuhide
E-mail：riki@（@okayama-u.ac.jp）
Plant Molecular Genetics

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Lectures: Model Plant Genetics and Breeding, Physiology of Environmental Responses, Plant Genome Regulation, Molecular Biology in Environmental Adaptation, Plant Cellular Biochemistry, Plant Cytomolecular Biochemistry, Advanced Biomacromolecular Science

Keywords: Rice; Wheat; Transposon mutagenesis; Crop; Mineral stress

Research Topics

Analysis of plant adaptation mechanisms under space environments and development of space stress-tolerant plants

We have analyzed the response and adaptability of plants in extreme environments such as radiation, ultraviolet rays, microgravity, and temperature fluctuation at the molecular level using biochemical and molecular biological techniques. We aim to develop plants that can grow in extreme environments by clarifying the problems that can occur in crops stored and cultivated in extreme environments and the conditions that are essential for crop production.

Design changes by the design review — Plant cultivation in International Space Station

Analysis of regulatory mechanisms for seed dormancy in gramineous crops

In wheat cultivation in Japan, the occurrence of sprout germination due to rain during harvest is a serious problem. The dormancy of seeds is one of the causes of the germination of the panicle. Norin 61, a cultivar of wheat, is one of the varieties with strong seed dormancy and resistance to ear germination. We have analyzed the control mechanism of seed dormancy in wheat using a dormancy-reducing mutant strain produced from Norin 61.

Plant cultivation in International Space Station — Norin 61　　　　　　　　　RSD Mutant line

Publication List

(1)Sugimoto, M., Watanabe, T., Takaoka, M., Suzuki, K., Muakami, T., Murakami, N. and Sumikawa, S. Anti-inflammatory effect on colitis and modulation of microbiota by fermented plant extract supplementation. Fermentation 7: 27-32 (2021).
(2)Rikiishi, K., Sugimoto, M., and Maekawa, M. Transcriptomic analysis of developing seeds in a wheat (Triticum aestivum L.) mutant RSD32 with reduced seed dormancy. Breed. Sci. 71: 155-166 (2021).
(3) Sugimoto, M.　Effect of space environment on crop viability and gene expression．BSJ-Review 11:75 (2020).
(4) Sugimoto, M. and Murakami, N. Transformation of major ginsenosides into minor ginsenosides in ginseng by pickling in salted rice malt paste. Adv Nutr Food Sci. 5: 27-32 (2020).
(5) Chiou, W. Y., Kawamoto, T., Himi, E., Rikiishi, K., Sugimoto, M., Hayashi-Tsugane, M., Tsugane, K. and Maekawa, M. Large Grain Encodes a putative RNA-binding protein that regulates spikelet hull length in rice. Plant Cell Physiol. 60:503-515 (2019).

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