東京工科大学 研究報告等

多田 雄一
所属  応用生物学部 応用生物学科
職種  教授
言語種別
英語
発行・発表の年月
2014年08月
形態種別
学術論文
査読
査読あり
標題
Growth and physiological adaptation of whole plants and cultured cells from a halophyte turf grass under salt stress
執筆形態
共著
掲載誌名
AoB PLANTS
出版社・発行元
OXFORD JOURNAL
巻・号・頁
6,plu041
著者・共著者
Yuichi Tada, Shiho Komatsubara, Takamitsu Kurusu
概要
In this study, we identified a genotype of Sporobolus virginicus, a halophytic turf grass collected in Japan, and investigated its growth rate, ion concentration and secretion, and proline concentration in comparison with the reported properties of genotypes collected from the USA, South Africa and Egypt. Surprisingly, the Japanese genotype showed a salinity tolerance up to 1.5 M NaCl, a 3-fold higher concentration than seawater salinity. Shoot growth was stimulated by 100 mM NaCl and root growth was stimulated at salinities of up to 1 M NaCl. Accumulation of Na+ and CI− in shoots and roots was rapidly elevated by salinity stress but did not exceed the levels required for osmotic adjustment, due in part to ion secretion by salt glands, which are present in genotypes of S. virginicus.
DOI
10.1093/aobpla/plu041
論文(査読付)ファイル