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Composition and formation of flame cell caps: A substratum for the attachment of micro-organisms to sea horse epidermis. ACTA ACUST UNITED AC 2011. [DOI: 10.1017/s0269727000010356] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
SynopsisThe epidermis of the sea horseHippocampus kudais characterised by flame cone cells, each of which protrudes 20-40 μm above the surface and is covered by a prominent mucous cap. Unlike normal surface cells, the mucoid caps can support epiphytic microbial growth.Histochemically the mucous cap is a neutral mucopolysaccharide-protein complex possessing 1,2 glycol groups and SH-groups; acid mucopolysaccharides are absent. The acid mucopolysaccharide glycocalyx of unmodified surface cells is absent from the mucous cap surface.Ultrastructurally two types of vesicle can be distinguished in flame cells. Type I is oval (0·3 × 0·6 um) with contents of medium electron density and occurs principally in mature flame cells. Type II, seen only in developing cells, is spherical (0·4 μm) and contains rod-like subunits characteristic of the cap mucous. Secretion is mediated by channels formed by smooth endoplasmic reticulum. Unmodified surface cells also secrete their vesicular contents, which resemble the Type I vesicles of flame cells and are similar to the goblet mucous vesicles of other fish, through similar channels.Flame cell mucous caps, by virtue of their histochemistry, possible provide a suitable substratum for the adhesion and growth of epiphytes which in turn may afford protection against cnidarian nematocysts.
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Riedel B, Gross WO. Die Reaktion des Golgi-Apparates der HeLa-Zellen nach einer Mediumerneuerung. Cell Tissue Res 1969. [DOI: 10.1007/bf00339358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wechselnde Adenosintriphosphatase-Aktivität der Zellkerne von gezüchteten Hühnerherzmyoblasten im Verlauf ihrer Umdifferenzierung. ACTA ACUST UNITED AC 1968. [DOI: 10.1007/bf00280608] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Hündgen M. [Influence of different aldehydes on preservation of the structure of cultivated cells and the demonstrability of 4 phosphatases]. HISTOCHEMIE. HISTOCHEMISTRY. HISTOCHIMIE 1968; 15:46-61. [PMID: 4312085 DOI: 10.1007/bf00304573] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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