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Electron microscopy study of the central retinal fovea in Pied flycatcher: evidence of a mechanism of light energy transmission through the retina

2020Journal article Open access
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dc.contributor.authorZueva, Lidia
dc.contributor.authorGolubeva, Tatiana
dc.contributor.authorKorneeva, Elena
dc.contributor.authorResto, Oscar
dc.contributor.authorInyushin, Mikhail
dc.contributor.authorKhmelinskii, Igor
dc.contributor.authorMakarov, Vladimir
dc.date.accessioned2020-10-23T09:11:05Z
dc.date.available2020-10-23T09:11:05Z
dc.date.issued2020
dc.description.abstractWe present unique ultrastructural data on avian retinal cells. Presently and earlier (Zueva et al., 2016) we explored distribution of intermediate filaments (IFs) in retinal cells of the Pied flycatcher (Ficedula hypoleuca, Passeriformes, Aves) in the central foveolar zone. This retinal zone only contains single and double cone photoreceptors. Previously we found that continuous IFs span Müller cells (MC) lengthwise from the retinal inner limiting membrane (ILM) layer up to the outer limiting membrane (OLM) layer. Here we describe long cylindrical bundles of IFs (IFBs) inside the cone inner segments (CIS) adjoining the cone plasma membrane, with these IFBs following along the cone lengthwise, and surrounding the cone at equal spacing one from the other. Double cones form a combined unit, wherein they are separated by their respective plasma membranes. Double cones thus have a common external ring of IFBs, surrounding both cone components. In the layer of cilia, the IFBs that continue into the cone outer segment (COS) follow on to the cone apical tip along the direction of incident light, with single IFs separating from the IFB, touching, and sometimes passing in-between the light-sensitive lamellae of the COS. These new data support our previous hypothesis on the quantum mechanism of light energy propagation through the vertebrate retina (Zueva et al., 2016, 2019).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.heliyon.2020.e04146pt_PT
dc.identifier.issn2405-8440
dc.identifier.urihttp://hdl.handle.net/10400.1/14800
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiological sciencespt_PT
dc.subjectPasseriformespt_PT
dc.subjectCell biologypt_PT
dc.subjectDevelopmental biologypt_PT
dc.subjectCytoskeletonpt_PT
dc.subjectTEMpt_PT
dc.titleElectron microscopy study of the central retinal fovea in Pied flycatcher: evidence of a mechanism of light energy transmission through the retinapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue6pt_PT
oaire.citation.startPagee04146pt_PT
oaire.citation.titleHeliyonpt_PT
oaire.citation.volume6pt_PT
person.familyNameKhmelinskii
person.givenNameIgor
person.identifier0000000420541031
person.identifier.ciencia-id0D1A-CB6C-6316
person.identifier.orcid0000-0002-6116-184X
person.identifier.ridC-9587-2011
person.identifier.scopus-author-id6701444934
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationfcb9f09f-2e99-41fb-8c08-7e1acbc65076
relation.isAuthorOfPublication.latestForDiscoveryfcb9f09f-2e99-41fb-8c08-7e1acbc65076

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