ArticleThe Journal of experimental biology2022
A hyperpolarizing rod bipolar cell in the sea lamprey, Petromyzon marinus.
Article in The Journal of experimental biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- E122Q rhodopsin: pigment microspectrophotometry, photoreceptor light responses, and bleaching adaptation.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026Article
- Molecular characterization of the sea lamprey retina illuminates the evolutionary origin of retinal cell types.Nature communications · 2024Article
- Ancient origin of the rod bipolar cell pathway in the vertebrate retina.Nature ecology & evolution · 2024Article
- Ancient origin of the rod bipolar cell pathway in the vertebrate retina.Research square · 2023Article
- Ancient origin of the rod bipolar cell pathway in the vertebrate retina.bioRxiv : the preprint server for biology · 2023Article
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3 authors.
Funding
Abstract
Retinal bipolar cells receive direct input from rod and cone photoreceptors and send axons into the inner retina, synapsing onto amacrine and ganglion cells. Bipolar cell responses can be either depolarizing (ON) or hyperpolarizing (OFF); in lower vertebrates, bipolar cells receive mixed rod and cone input, whereas in mammals, input is mostly segregated into 14 classes of cone ON and OFF cells and a single rod ON bipolar cell. We show that lamprey, like mammals, have rod bipolar cells with little or no cone input, but these cells are OFF rather than ON. They have a characteristic morphology and a spectral sensitivity nearly indistinguishable from that of rod photoreceptors. In background light known to saturate rods, rod bipolar cells are also saturated and cannot respond to increment flashes. Our results suggest that early vertebrate progenitors of both agnathans and gnathostomes may have had a more fluid retinal organization than previously thought.
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