The Hydration-Induced Ca^ Release Is a General Phenomenon in Characeae

元データ 日本植物生理学会

概要

When an internodal cell of Nitella axilliformis that had been treated with 10 mM KCl and 1 mM EGTA was ex-amined for transcellular osmosis, an increase in the cytosolic concentration of Ca^<2+> on the endoosmotic side was observed, as was the case in Nitella flexilis even though the increase was much smaller in Nitella axilliformis. The hydration-induced calcium release (HICR) was also observed in other species of Characeae, namely, Chara corallina and Nitellopsis obtusa. HICR was also demonstrated in cytoplasm isolated from Nitella axilliformis and Chara corallina as from Nitella flexilis. Thus, it appears that HICR is not specific to Nitella flexilis but may be a general phenomenon in Characeae.

著者

Kikuyama Munehiro Biological Laboratory, The University of the Air
Kikuyama M Niigata Univ. Niigata Jpn
Shimada K Tokyo Metropolitan Univ. Tokyo Jpn
Shimada Kiyo Biological Laboratory The University Of The Air
Tazawa M Fukui Univ. Technol. Fukui Jpn
Tazawa Masashi Department Of Applied Physics And Chemistry Fukui University Of Technology
Kikuyama Munehiro Biological Laboratory The University Of The Air.
Kikuyama Munehiro Biological Laboratory The University Of The Air
Tazawa Masashi Departlnent Of Biology Faculty Of Science Osaka University

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