Photoreceptor shedding is initiated by light in the frog retina
Abstract
Frogs maintained on a diurnal light-dark cycle (14 hours light and 10 hours darkness) shed their rod photoreceptor outer segment tips shortly after the onset of light. Shedding is synchronous and occurs in about 25 percent of the rod photoreceptors each day. Prolonged exposure to total darkness decreases the amount of shedding, after which exposure to light results in a large burst of synchronous shedding. Thus in the frog retina, the synchronous shedding of rod outer segment tips is shown to be directly related to light stimulation.
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In the frog, Rana pipiens, there is a strong dependency on external light stimuli to initiate OS phagocytosis; complete darkness prevents phagocytosis.
“In other animals, like the frog, Rana pipiens, there is a strong dependency on external light stimuli to initiate OS phagocytosis; complete darkness prevents phagocytosis (Basinger et al., 1976).”
From The cell biology of the retinal pigment epithelium (2020) · cites this paper as Basinger et al., 1976
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References 7 · Cited by 227
- Authors
- Basinger, S., Hoffman, R., & Matthes, M.
- Affiliations
- Baylor College of Medicine (US)
- ORCID
- Matthes, Michael
- Venue
- Science
- Published
- 1976-12-03
- Volume
- 194
- Issue
- 4269
- Pages
- 1074-1076
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2028999663
- Cited by
- 227
- References
- 7
- Citations by year
- 2025: 5 · 2024: 2 · 2023: 2 · 2022: 4 · 2021: 1 · 2020: 2 · 2019: 1 · 2018: 1 · 2017: 3 · 2016: 1 · 2015: 6 · 2014: 2 · 2013: 2 · 2012: 1
- FWCI
- 7.85
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Photoreceptor and optogenetics research
- Keywords
- rod photoreceptors, outer segment, photostimulation, darkness, frog retina
- MeSH terms
- Animals, Circadian Rhythm, Light, Organoids, Phagocytosis, Photoreceptor Cells, Pigment Epithelium of Eye, Rana pipiens, Temperature, Time Factors
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