ArticleThe Journal of membrane biology1992
Cytoplasmic chloride regulates cation channels in the vacuolar membrane of plant cells.
Article in The Journal of membrane biology, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 39 citations in OpenAlex.
- Molecular Cloning and Characterization of SaCLCd, SaCLCf, and SaCLCg, Novel Proteins of the Chloride Channel Family (CLC) from the HalophytePlants (Basel, Switzerland) · 2022Article
- Regulation of an amiloride-sensitive Na+-permeable channel by a beta2-adrenergic agonist, cytosolic Ca2+ and Cl- in fetal rat alveolar epithelium.The Journal of physiology · 1999Article
- Roles of Ion Channels in Initiation of Signal Transduction in Higher Plants.The Plant cell · 1995Article
- Green circuits--the potential of plant specific ion channels.Plant molecular biology · 1994Review
- Vacuolar chloride regulation of an anion-selective tonoplast channel.The Journal of membrane biology · 1994Article
- Fast and slow activation of voltage-dependent ion channels in radish vacuoles.Biophysical journal · 1993Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study is concerned with the characterization of the ionic currents in the vacuolar membrane (tonoplast) of plant cells. Voltage patch-clamp experiments at the whole vacuole and single channel levels were employed to study the effects of cytoplasmic chloride on the tonoplast inward rectifying currents of sugar beet cultured cells. Whole vacuole experiments showed that removal of cytoplasmic chloride induced a decrease in the level of the inward currents, an effect that was reversed upon returning to control levels of cytoplasmic chloride. Substitution of cytoplasmic chloride by any other anion (organic or inorganic) resulted in a reduction in the level of the inward currents. At a given negative tonoplast potential, the inward currents showed a linear relationship with the concentration of cytoplasmic chloride between 10 and 100 mM, with the slope of these relationships increasing as the potential was made more negative. Single channel experiments showed that reduction of cytoplasmic chloride changed the gating mechanism of the channels without affecting the single channel conductance. Reduction of cytoplasmic chloride caused a decrease in the open probability of the tonoplast cation channels by reducing their mean open time and by inducing the appearance of an additional closed state.
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