Studies on ciliated cells

Saguchi, S.

doi:10.1002/jmor.1050290107

Cited by 42 publications

(6 citation statements)

References 20 publications

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“…The truth of this corollary he has established by the observations of exclusively amitotic division on the part of ciliated cells, more especially those of the ductuli efferentes of the mouse. This conclusion of exclusive amitosis of ciliated cells has been confirmed by Saguchi (1917) for vertebrates and hy Helvestine (1921) for invertebrates.…”

Section: Introductionmentioning

confidence: 58%

Ciliogenesis in the epididymis of the white rat

Jordan

Helvestine

1923

Anat. Rec.

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Ciliogenesis en el epididimo de la rat,a blanca.Esta investigacibn representa un esfuerzo para determinar la verdadera naturaleza de las pestaiias vibrfitiles y sus corpfisculos basales en las cblulas que tapizan el conducto del epididimo de la rata blanca. Comprende un estudio comparativo de la cilioghesis en 10s conductos eferentes y el epididimo propiamente dicho. Las pestafias de las c6lulas de 10s conductillos eferentes (conos vasculares) se producen mediante crecimiento de corpfisculos bacilares basales conspicuos, 10s cuales derivan del centrosoma. Las pestafias de las cklulas que tapizan el conducto propiamente dicho representan porciones distales persistentes de la membrana celular y, en parte, restos espongioplfismicos del citoplasma, el cual ha desaparecido en su mayor parte distalmente durante la actividad secretora. Los grhnulos basales representan engrosamientos nodales en el punto donde 10s filamentos espongioplhsmicos pasan en el citoplasma no alterado y, en parte, bandas de cierre en las cuales permanecen insertas las porciones persistentes distales de la membrana.

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Section: Introductionmentioning

confidence: 58%

Ciliogenesis in the epididymis of the white rat

Jordan

Helvestine

1923

Anat. Rec.

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“…The status of such structures has occasioned endless controversy (for critical review of the earlier work see Wilson 1928, andespecially Heidenhain 1911). Biitschli (1894) denied the existence of fibrilar structures in general, believing they were formed of the mesh work between lines of alveoli, Kolaev (1910) and Saguchi (1917), extending this conception, believed th a t the fibrils were formed by the deeply staining, longitudinal shafts of a cyto plasmic reticulum, Rabl-Ruckhard (1868) and Leydig (1883), regarded them as folds of the cell membrane. In my preparations the clear discreteness of the fibrils in transverse sections of the ciliated cells invalidates such an explanation.…”

Section: Discussionmentioning

confidence: 99%

“…z. in figures 1 and 2), called by Greenwood the ' basal band ', by Dequal (1910), in the corresponding cells of Octoclasium, the 'orlo a spazzola', is also distinguished during fife, stains lightly in iron haematoxylin, and is con spicuous in fixed material by its vertical striations which though corresponding in Beneath the basal granules is the third, and inner zone (hb.z. figures 1, 2 and 3), distinguished in previous accounts of ciliated cells by a variety of names, such as 'hyaline zone' (Greenwood 1892), 'angrenzende Zone' (Gurwitsch 1901), 'trans parent zone' (Saguchi 1917), 'sub-cuticular zone' (Grave &Schmitt 1925), and'hypobasal zone' (Kindred 1927). In Lumbricus this zone is distinguishable only in sections, varies greatly in appearance, distinctness and extent (1 to 12ft deep), and stains either faintly, so as scarcely to be distinguished, or uniformly and intensely, so as to be distinguished easily (figure 1, right), or in a variegated fashion (figure 1, left), often so pronounced as to give the free border the appearance of an intricate lace pattern.…”

Section: The Ciliated Cellsmentioning

confidence: 99%

The histophysiology of the alimentary canal of the earthwormLumbricus terrestrisLinnaeus - I. The process of extrusion from the intestinal glands, and other features of the intestinal epithelium

Millott

1948

Proc. R. Soc. Lond. B

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Recently it was shown th at the gland cells in the intestinal lining of Lumbricus, produce a proteolytic juice, and in response to the stimulation of secretory nerves, many lose a great part of their substance within 30 min, (Millott 1944)* The intestinal epithelium is composed of ciliated and glandular cells, each of the latter beirig surrounded by a sheath (figure 1) composed commonly of four or five of the former. I t is subject to phasic change (see p. 366), its characters, especially those of the free border, undergoing alteration under varying physiological conditions. In certain of these phases, the free tips of the gland cells are completely over-arched by the free ends of the ciliated cells, which thus form a continuous cover over them. This was noted by Greenwood (1892) who, in addition, observed th at at certain phases the covering border was penetrated by inconspicuous openings. I t is natural to suspect th a t the liberation of secretion is correlated with changes in the free ends of the ciliated cells, and may therefore take place during certain of these phases only. Both Greenwood (1892) and Gurwitsch (1901) hint strongly at the idea, but their evidence is insufficient. I t is the object of this account to examine the question of the discharge of secretion in the light of new evidence. T erm inologyA survey of literature reveals divergence and confusion in the use of the word 'secretion'. I t has been used by the majority of workers not only to denote both the process and its product, but also in a varying sense when applied to the former.I3 58 ] Some use the term widely to cover both the formation of substances within a gland cell and their subsequent discharge, others use it in a more restricted sense, to imply either of these events, frequently without reference to previous work. I t is evident th a t standardization is needed.

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“…5, N ) pyknotic (figs. 5, D, 6, C) and finally disintegrates by karyorrhexis. Such necrotic material is resorbed basally, and new cells are pushed over and into place of the degenerated ones.…”

Section: Methodsmentioning

confidence: 99%

Amitosis in the ciliated cells of the gill filaments of cyclas

Helvestine

1921

Journal of Morphology

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Resumen por el autor, Frank Helvestine.Amitosis en las cklulas ciliadas de 10s filamentos branquiales de Cyclas.En 10s filamentos branquiales de Cyclas las cklulas no ciliadas del epitelio basal producen las cklulas ciliadas del epitelio lateral, latero-frontal y frontal. La mitosis tiene lugar en las celulas del epitelio basal y en las celulas no ciliadas del es6fago. La amitosis es el metodo exclusivo de proliferacih de las c6lulas ciliadas de 10s filamentos branquiales. Mediant'e division ami-t6sica la c6lula madre del epitelio latero-frontal produce cblulas transicionales de las cuales nacen c6lulas que reemplaaan las c6lulas caducas del epitelio frontal. En las c6lulas ciliadas de Cyclas no puede demostrarse la existencia de un centrosoma, y entre las mitocondrias y las pestafias vibrhtiles no puede discernirse relacih genetica alguna. Las pruebas indirectas indican que 10s cuerpos basales de las c6lulas son derivados del centrosoma.

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Studies on ciliated cells

Cited by 42 publications

References 20 publications

Ciliogenesis in the epididymis of the white rat

Ciliogenesis in the epididymis of the white rat

The histophysiology of the alimentary canal of the earthwormLumbricus terrestrisLinnaeus - I. The process of extrusion from the intestinal glands, and other features of the intestinal epithelium

Amitosis in the ciliated cells of the gill filaments of cyclas

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