Linked Life Data

6410058

Source:http://linkedlifedata.com/resource/pubmed/id/6410058

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1983-9-23
pubmed:abstractText
Thermal effects on the visual transduction mechanism of toad rods were examined by recording the membrane current of a single outer segment while changing the temperature within the range 15-30 degrees C. Warming increased the amplitude rmax of the saturating flash response. This effect had a Q10 of about 1.8 and may result from an increase in the light-sensitive conductance. The flash sensitivity decreased with increasing temperature, while the half-saturating flash intensity increased. There was no evidence of a temperature effect on the probability that an incident 500 nm photon triggered an electrical response. Together with the results in (2) and (3) this indicates that at higher temperature a successfully absorbed photon blocked a smaller fraction of the light-sensitive conductance. Upon warming, the time scale of the flash response shortened but the characteristic wave form was preserved. The speed of the dim flash response, measured by the reciprocal of its time-to-peak, had a Q10 of 2.7 and an apparent activation energy of 16.8 kcal mole-1. The power spectrum of the continuous component of the dark noise could be predicted at different temperatures by assuming that the underlying event was shaped by two of the four delays required to fit the light response. This behaviour is consistent with the notion that the continuous noise arises within the cascade of processes controlling the internal transmitter concentration of the outer segment.
pubmed:grant
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-112242, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-112243, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-13192764, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-14205019, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-14898032, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-4449052, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-5044581, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-529060, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-5501057, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-5942950, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-5972181, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-6265800, http://linkedlifedata.com/resource/pubmed/commentcorrection/6410058-6788941
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-3751
pubmed:author
pubmed:issnType
Print
pubmed:volume
337
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
723-34
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Temperature effects on the membrane current of retinal rods of the toad.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't