ATP is essential for calcium-induced salt tolerance in Nitellopsis obtusa

M. Katsuhara; M. Tazawa

doi:10.1007/BF01281029

ATP is essential for calcium-induced salt tolerance in Nitellopsis obtusa

M. Katsuhara, M. Tazawa

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

In Nitellopsis, salt stress causes a depolarization of the membrane potential and a decrease in the membrane resistance, both of which can be prevented by the addition of calcium to the external medium (Katsuhara and Tazawa 1986). The effect of calcium is also observed in tonoplast-free cells containing ATP. However, in the absence of intracellular ATP, addition of external calcium is ineffective. AMP, AMPPNP, and GTP can replace ATP in supporting the calcium effect.

Original language	English
Pages (from-to)	190-192
Number of pages	3
Journal	Protoplasma
Volume	138
Issue number	2-3
DOIs	https://doi.org/10.1007/BF01281029
Publication status	Published - Jun 1 1987
Externally published	Yes

Keywords

ATP
Calcium ion
Effector
Nitellopsis obtusa
Salt tolerance

ASJC Scopus subject areas

Plant Science
Cell Biology

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AU - Tazawa, M.

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N2 - In Nitellopsis, salt stress causes a depolarization of the membrane potential and a decrease in the membrane resistance, both of which can be prevented by the addition of calcium to the external medium (Katsuhara and Tazawa 1986). The effect of calcium is also observed in tonoplast-free cells containing ATP. However, in the absence of intracellular ATP, addition of external calcium is ineffective. AMP, AMPPNP, and GTP can replace ATP in supporting the calcium effect.

AB - In Nitellopsis, salt stress causes a depolarization of the membrane potential and a decrease in the membrane resistance, both of which can be prevented by the addition of calcium to the external medium (Katsuhara and Tazawa 1986). The effect of calcium is also observed in tonoplast-free cells containing ATP. However, in the absence of intracellular ATP, addition of external calcium is ineffective. AMP, AMPPNP, and GTP can replace ATP in supporting the calcium effect.

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KW - Effector

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KW - Salt tolerance

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