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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
1979-11-21
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pubmed:abstractText |
1. A comparison was made of two methods for estimating the membrane potential in chromatophores from Rhodopseudomonas sphaeroides Ga. Illuminated chromatophores generated a potential that is apparently much larger when estimated on the basis of the red-band shift of carotenoids rather than from the extent of uptake of the permeant SCN- ion. 2. In contrast, when the chromatophores were oxidizing NADH or succinate the uptake of SCN- indicated a larger membrane potential than was estimated from the carotenoid band shift. 3. The extent of SCN- uptake and the carotenoid-band shift respond differently to changes in the ionic composition of the reaction medium. 4. The effects of antimycin on the carotenoid band shift and SCN- uptake are reported. 5. It is concluded that the carotenoid band shift and the uptake of SCN- are responding to different aspects of the energized state.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-1138891,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-14203163,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-14447230,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-14907713,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-166671,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-196931,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-207580,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-212021,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-212022,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-240445,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-241748,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-25184,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-304358,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-332068,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-414935,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-416847,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-4216516,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-4358810,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-4360255,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-4434984,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-4442600,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-4540949,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-4818351,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-5023580,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-5540508,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-658407,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-804940,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-891967,
http://linkedlifedata.com/resource/pubmed/commentcorrection/226068-913405
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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 |
Apr
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pubmed:issn |
0264-6021
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
180
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
75-85
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pubmed:dateRevised |
2010-9-2
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pubmed:meshHeading |
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pubmed:year |
1979
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pubmed:articleTitle |
Comparison of permeant ion uptake and carotenoid band shift as methods for determining the membrane potential in chromatophores from Rhodopseudomonas sphaeroides Ga.
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pubmed:publicationType |
Journal Article,
Comparative Study
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