Linked Life Data

9536371

Source:http://linkedlifedata.com/resource/pubmed/id/9536371

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1998-4-15
pubmed:abstractText
Behavioural experiments and ganglion cell recordings indicate that the visual sensitivity of dark-adapted toads is limited by the occurrence of spontaneous isomerization-like noise events in the rods. The frequency of these "false photons" has previously been studied (with micropipette recording) in the toad species Bufo marinus, while the behavioural thresholds were determined using Bufo bufo toads. Thus, it was necessary to check that the noise event frequency is roughly the same in these two species. Here we show that it is, in both species, close to 0.02 events per second and rod (at 22 degrees C). Using microspectrophotometry we further show that the absorption spectra of these two rhodopsins are very similar, peaking around 503.3 and 501.8 nm for B. marinus and B. bufo, respectively.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0042-6989
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
483-6
pubmed:dateRevised
2009-9-29
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Rod pigment and rod noise in the European toad Bufo bufo.
pubmed:affiliation
Department of Biosciences, University of Helsinki, Finland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't