Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-12-28
pubmed:abstractText
In the vertebrate retina the presence of synaptic ribbons (SRs) is well documented in two sites only, viz., in photoreceptor axon terminals in the outer plexiform layer and in bipolar cell axons in the inner plexiform layer. The present paper reports the presence of non-photoreceptor SRs in the outer plexiform layer of cattle and mouse, where they were seen in small numbers in thin cell processes near cone pedicles of light-adapted animals. They were never seen near rod spherules. Quantitative data obtained in mice killed at different time-points revealed that the SRs under consideration increased in number during day time and were absent during the dark phase. Moreover, under high light intensity of 10000 lux they were more frequent in number compared to 100-lux-exposed animals. It is concluded that the cell processes revealing the temporary presence of SRs are processes of flat bipolar cells which may provide a feedback to cones during the light phase.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0300-4864
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
81-9
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Transient synaptic ribbons in the mammalian retina at unusual sites.
pubmed:affiliation
Department of Anatomy, Johannes Gutenberg-University, Mainz, Germany.
pubmed:publicationType
Journal Article