AXONAL MICROTUBULES - COMPARATIVE ANATOMY IN VERTEBRATES, INCLUDING MAN

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dc.contributor.authorVERGARA, J
dc.contributor.authorSERRA, M
dc.contributor.authorSAITUA, F
dc.contributor.authorITURRIAGA, R
dc.contributor.authorALVAREZ, J
dc.date.accessioned2025-01-23T19:22:38Z
dc.date.available2025-01-23T19:22:38Z
dc.date.issued1991
dc.description.abstractThe microtubular density was assessed with the electron microscope in 3-mu-m myelinated fibers, myelin excluded, of 11 species from the following classes: Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. The average for all species was 20.6 microtubules/mu-m2. Dispersion of values was restricted as shown by a coefficient of variation of 15.8. The microtubular content of nonmedullated axons was assessed in trout, lizard, finch, and man. In the four species, the number of microtubules increased with the cross sectional area of the axon. In trout, lizard and finch, the microtubular density decreased from over 100 microtubules/mu-m2 in fibers smaller than 0.1-mu-m2 to about 30 in 1-mu-m2 fibers; in axons of equal size, the packing of microtubules of nonmedullated was similar between them, and with reported values for peripheral axons of cat and rat. In man, the microtubular density of nonmedullated fibers exhibited only a mild decrease with the axonal size. In the finch, myelinated and nonmedullated axons overlapped in the range 0.23-0.60-mu-m2 and both groups exhibited similar microtubular densities. We conclude that the packing of microtubules of the vertebrate peripheral axon is a feature largely conserved during evolution.
dc.fuente.origenWOS
dc.identifier.issn1122-9497
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99071
dc.identifier.wosidWOS:A1991FX67600002
dc.issue.numero3
dc.language.isoen
dc.pagina.final363
dc.pagina.inicio357
dc.revistaJournal of submicroscopic cytology and pathology
dc.rightsacceso restringido
dc.subjectNERVE FIBER
dc.subjectEVOLUTION
dc.subjectAXOPLASM
dc.subjectCYTOSKELETON
dc.subjectSLOW TRANSPORT
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleAXONAL MICROTUBULES - COMPARATIVE ANATOMY IN VERTEBRATES, INCLUDING MAN
dc.typeartículo
dc.volumen23
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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