| pubmed-article:16666682 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:16666682 | lifeskim:mentions | umls-concept:C0007634 | lld:lifeskim |
| pubmed-article:16666682 | lifeskim:mentions | umls-concept:C1138842 | lld:lifeskim |
| pubmed-article:16666682 | lifeskim:mentions | umls-concept:C0033731 | lld:lifeskim |
| pubmed-article:16666682 | lifeskim:mentions | umls-concept:C1382107 | lld:lifeskim |
| pubmed-article:16666682 | lifeskim:mentions | umls-concept:C0521116 | lld:lifeskim |
| pubmed-article:16666682 | lifeskim:mentions | umls-concept:C1880022 | lld:lifeskim |
| pubmed-article:16666682 | pubmed:issue | 4 | lld:pubmed |
| pubmed-article:16666682 | pubmed:dateCreated | 2010-6-29 | lld:pubmed |
| pubmed-article:16666682 | pubmed:abstractText | Protoplasts obtained from corn (Zea mays) suspension cells were studied using the whole cell patch-clamp technique. One time-independent current, as well as two time-dependent currents were identified. All three currents were reduced by tetraethylammonium (9 millimolar), a K(+) channel blocker. The time-independent current had a nearly linear current-voltage relationship and its reversal potential, defined as the voltage at which there is zero current, was highly dependent on the extracellular potassium concentration. One of the two time-dependent currents was activated, with rapid kinetics, by membrane hyperpolarization to potentials more negative than -100 millivolts. The second time-dependent current was activated with a sigmoidal time course by membrane depolarization to potentials more positive than -60 millivolts. It exhibited no inactivation and was carried primarily by potassium ions. These characteristics suggest that this latter current is caused by the voltage-dependent opening of delayed-rectifier K(+) channels. These three currents, which are not generated by the plasmalemma H(+)-ATPase, are likely to assist in the regulation of the cellular K(+) fluxes and membrane potential. | lld:pubmed |
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| pubmed-article:16666682 | pubmed:language | eng | lld:pubmed |
| pubmed-article:16666682 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:16666682 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:16666682 | pubmed:month | Apr | lld:pubmed |
| pubmed-article:16666682 | pubmed:issn | 0032-0889 | lld:pubmed |
| pubmed-article:16666682 | pubmed:author | pubmed-author:ShrierAA | lld:pubmed |
| pubmed-article:16666682 | pubmed:author | pubmed-author:PooleR JRJ | lld:pubmed |
| pubmed-article:16666682 | pubmed:author | pubmed-author:KetchumK AKA | lld:pubmed |
| pubmed-article:16666682 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:16666682 | pubmed:volume | 89 | lld:pubmed |
| pubmed-article:16666682 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:16666682 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:16666682 | pubmed:pagination | 1184-92 | lld:pubmed |
| pubmed-article:16666682 | pubmed:dateRevised | 2010-9-14 | lld:pubmed |
| pubmed-article:16666682 | pubmed:year | 1989 | lld:pubmed |
| pubmed-article:16666682 | pubmed:articleTitle | Characterization of potassium-dependent currents in protoplasts of corn suspension cells. | lld:pubmed |
| pubmed-article:16666682 | pubmed:affiliation | Centre for Plant Molecular Biology, Department of Biology, McGill University, Montréal, Québec, Canada H3A 1B1. | lld:pubmed |
| pubmed-article:16666682 | pubmed:publicationType | Journal Article | lld:pubmed |
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