Structural analogy between the intermediary zone of motile cilia and connecting cilium of the retinal rode (Hungarian)

Research output: Contribution to journalArticle

Abstract

The connecting cilium of rat retinal rods was studied with freeze fracturing and routine electron microscopic method. Intramembrane particles arranged vertically to the length of the cilium were observed in the membrane of the cilium. Each cilium has about 30 to 40 rows of intramembrane particles which can be seen well on the fracture face B, while on the fracture face A this pattern is supressed by a large number of other intramembrane particles. The membrane of the longitudinal sections of cilium examined by routine electron microscopic method revealed some bundles showing periodicity which is identical with that of the rows of the intramembrane particles. On the cross section Y shaped structures can be detected connecting the 9 pairs of the peripheral tubules to the membrane. Along the whole length of the cilium the axial pair of tubules, the central sheath, the cartwheel structure and the dyneim arms of the side of the tubules are lacking. Comparing the above structure with that of the motile cilium it can be stated that the retinal connecting cilium is of the same basic structure as the initial or intermediary zone of the same basic structure as the initial or intermediary zone of the motile cilium. There are several data supporting indirectly the possibility that the membrane bundles observed in the ultrathin sections corresponds to the rows of the intramembrane particles in the freeze fractured specimens. The arrangement of particles into rows and their orientation are probably insured by the anchoring of the particles with the Y shaped connecting structures.

Original languageEnglish
Pages (from-to)93-100
Number of pages8
JournalBiologia
Volume23
Issue number1
Publication statusPublished - 1975

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Cilia
cilia
Membranes
membrane
Electrons
Rats
electron
Freeze Fracturing
electrons
rods (retina)
Retinal Rod Photoreceptor Cells
particle
periodicity
Periodicity
cross section
Arm
rats

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Structural analogy between the intermediary zone of motile cilia and connecting cilium of the retinal rode (Hungarian). / Röhlich, P.

In: Biologia, Vol. 23, No. 1, 1975, p. 93-100.

Research output: Contribution to journalArticle

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