Research

Group of Plant Growth Regulation

Faculty staff

			Prof. Dr. Yoko YAMAMOTO E-mail： yokoATokayama-u.ac.jp	_{^{(please change AT to @ before sending)}}
			Assist. Prof. Dr. Takayuki SASAKI E-mail： tsasakiATokayama-u.ac.jp	_{^{(please change AT to @ before sending)}}

Lectures: Plant Stress Physiology, Plant Growth Regulation
Keywords: Aluminum stress; Malate transporter; Acidic soil

Summary of main research topics

Study of plant growth regulation mechanisms under abiotic environmental stress
Our research is designed to ascertain the mechanisms of plant growth regulation under environmental stresses at the levels of cells, tissues, organs, and the whole individual. Our research has specifically examined aluminum ion, a major inhibitor of root growth in acidic soils, and has been analyzing the mechanisms of aluminum-induced cell elongation inhibition and cell death as well as tolerant mechanisms to overcome these toxic effects. During the study, we cloned the aluminum-tolerant wheat gene ALMT1, which is a highly promising gene to confer acid-soil tolerance on crops. The ALMT1 gene belongs to the ALMT gene family, which has been found only in the plant kingdom. We expect to elucidate unique plant functions coded by individual ALMT genes.

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

(1) Tsuchiya, Y., Kariya, K., Sasaki, T. and Yamamoto, Y. Transcriptomic analysis of aluminum-tolerant phenotype of a cultured cell line of tobacco (Nicotiana tabacum L.). In: Proceedings of the 9^th International Symposium on Plant-Soil Interactions at Low pH, pp. 113-114. (2015. 3.)
(2) Yamamoto, Y., Sameeullah, M., Kariya K., Tsuchiya, Y. and Sasaki, T. Mechanisms of aluminum toxicity and tolerance elucidated by use of cultured tobacco cell lines. In: Proceedings of the 9^th International Symposium on Plant-Soil Interactions at Low pH, pp. 116-117. (2015. 3.)
(3) Kariya, K., Tsuchiya, Y., Sasaki, T. and Yamamoto, Y. An aluminum-induced cell death mechanism involving vacuolar processing enzyme in tobacco. In: Proceedings of the 9^th International Symposium on Plant-Soil Interactions at Low pH, pp. 145-146. (2015. 3.)
(4) Nishiyama, Y., Hanafusa, T., Yamashita, J., Yamamoto, Y. and Ono, T. Adsorption and removal of strontium in aqueous solution by synthetic hydroxyapatite. Journal of Radioanalytical and Nuclear Chemistry. DOI: 10.1007/s10967-015-4228-9. (2015. 6. Online)