Summary
Cytoplasmic streaming in permeabilizedNitella cells was found to be controlled by Ca2+ of physiological concentration. The streaming driven by Mg · ATP was scarcely affected by 10−7 M Ca2+, but was inhibited significantly by 5 × 10−7 M Ca2+ and completely by 10−6 M Ca2+. The inhibition by Ca2+ was completely reversible even at 10−5 M.
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Abbreviations
- ATP:
-
adenosine-5′-triphosphoric acid
- EGTA:
-
ethyleneglycol-bis-(β-aminoethyl ether)N,N′-tetraacetic acid
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Tominaga, Y., Shimmen, T. & Tazawa, M. Control of cytoplasmic streaming by extracellular Ca2+ in permeabilizedNitella cells. Protoplasma 116, 75–77 (1983). https://doi.org/10.1007/BF01294233
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DOI: https://doi.org/10.1007/BF01294233