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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
15
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pubmed:dateCreated |
1996-10-29
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pubmed:abstractText |
A rapid, transient depolarization of the plasma membrane in seedling stems is one of the earliest effects of blue light detected in plants. It appears to play a role in transducing blue light into inhibition of hypocotyl (stem) elongation, and perhaps other responses. The possibility that activation of a Cl- conductance is part of the depolarization mechanism was raised previously and addressed here. By patch clamping hypocotyl cells isolated from dark-grown (etiolated) Arabidopsis seedlings, blue light was found to activate an anion channel residing at the plasma membrane. An anion-channel blocker commonly known as NPPB 15-nitro-2-(3-phenylpropylamino)-benzoic acid] potently and reversibly blocked this anion channel. NPPB also blocked the blue-light-induced depolarization in vivo and decreased the inhibitory effect of blue light on hypocotyl elongation. These results indicate that activation of this anion channel plays a role in transducing blue light into growth inhibition.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-11537725,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-11540069,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-11607483,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-11607582,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-1382976,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-13936567,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-16666580,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-3235976,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-7638620,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-7773019,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-7807528,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-8232555,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-8453665,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8755616-8570735
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pubmed:keyword |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0027-8424
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:day |
23
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pubmed:volume |
93
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
8134-8
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pubmed:dateRevised |
2010-9-13
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pubmed:meshHeading |
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pubmed:year |
1996
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pubmed:articleTitle |
An anion channel in Arabidopsis hypocotyls activated by blue light.
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pubmed:affiliation |
Department of Botany, University of Wisconsin, Madison 53706.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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