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Literature DB >> 14105219

A STUDY OF THE FINE STRUCTURE OF THE EPIDERMIS OF RANA PIPIENS.

Abstract

The epidermis of adult Rana pipiens has been studied by electron microscopy and histological and histochemical methods. It was found that the epidermis is engaged in the production of both keratin and mucus. The basal cells are mainly filled with tonofilaments, whereas the cells located in the mid-portion of the epidermis contain both tonofilaments and mucous granules. Golgi vesicles and endoplasmic reticulum are found in relative abundance in the mucus-producing cells and seem to be involved in the production of mucous granules. The mucus seen was partly retained within the cells and partly secreted into the intercellular spaces. The outermost keratinized cells contain mainly filaments and a few remnants of cell constituents.

Entities: Species

Keywords: CYTOLOGY; EXPERIMENTAL LAB STUDY; FROGS; HISTOCYTOCHEMISTRY; KERATIN; MICROSCOPY, ELECTRON; MUCOUS MEMBRANE; MUCUS; PROTEIN METABOLISM; SKIN

Mesh：

Substances：
Proteins
Keratins

Year: 1964 PMID： 14105219 PMCID： PMC2106343 DOI： 10.1083/jcb.20.1.85

Source DB: PubMed Journal: J Cell Biol ISSN： 0021-9525 Impact factor: 10.539

21 in total

5. The effect of excess vitamin A on cultures of embryonic chicken skin explanted at different stages of differentiation.

Authors: H B FELL
Journal: Proc R Soc Lond B Biol Sci Date: 1956-03-26

2. Adaptations of the reed frog Hyperolius viridiflavus (Amphibia, Anura, Hyperoliidae) to its arid environment : I. The skin of Hyperolius viridiflavus nitidulus in wet and dry season conditions.

Authors: Frank Kobelt; K E Linsenmair
Journal: Oecologia Date: 1986-03 Impact factor: 3.225

3. The fine structure of the digital pads of rhacophorid tree frogs.

Authors: U Welsch; V Storch; W Fuchs
Journal: Cell Tissue Res Date: 1974-04-30 Impact factor: 5.249

4. Similarities between Hassall's corpuscles of the human thymus and the epidermis. An investigation by electron microscopy and histochemistry.

Authors: B von Gaudecker; E M Schmale
Journal: Cell Tissue Res Date: 1974 Impact factor: 5.249

9. Differential effects of trypsin on the epidermis of Rana catesbeiana. Observations on differentiating junctions and cytoskeletons.

Authors: L C Morejohn; J N Pratley
Journal: Cell Tissue Res Date: 1979-05-18 Impact factor: 5.249

Review 10. Metabolic-morphologic events in the integument of the Pacific hagfish (Eptatretus stoutii).

Authors: R H Spitzer; S W Downing; E A Koch
Journal: Cell Tissue Res Date: 1979-03-19 Impact factor: 5.249

A STUDY OF THE FINE STRUCTURE OF THE EPIDERMIS OF RANA PIPIENS.

1. Normal human keratinization processes as demonstrated by electron microscopy.

2. An ultrastructural study on the role of the keratohyalin granules in the keratinization process.

3. An electron microscope study of cornification in the human skin.

4. An electron microscope study of thin sections of human skin. II. Superficial cell layers of footpad epidermis.

5. The effect of excess vitamin A on cultures of embryonic chicken skin explanted at different stages of differentiation.

6. The tonofibrils of the human epidermis.

7. [Electron microscopic studies on the epidermis. I. Rat paw].

8. Metaplasia produced in cultures of chick ectoderm by high vitamin A.

9. Improvements in epoxy resin embedding methods.

10. Fine structure of the larval anuran epidermis, with special reference to the figures of Eberth.

1. The anatomy, histology and histochemistry of the rectal gland in the lip-shark Hemiscyllium plagiosum (Bennett).

2. Adaptations of the reed frog Hyperolius viridiflavus (Amphibia, Anura, Hyperoliidae) to its arid environment : I. The skin of Hyperolius viridiflavus nitidulus in wet and dry season conditions.

3. The fine structure of the digital pads of rhacophorid tree frogs.

4. Similarities between Hassall's corpuscles of the human thymus and the epidermis. An investigation by electron microscopy and histochemistry.

5. Some ultrastructural observations on keratohyalin granules of guinea pig epidermis.

6. Formation of alpha- and beta-type keratin in lizard epidermis during the molting cycle.

7. Keratinization in the mucosa of the ventral surface of the chicken tongue.

8. Fine structural changes in the differentiating epidermis of Xenopus laevis embryos.

9. Differential effects of trypsin on the epidermis of Rana catesbeiana. Observations on differentiating junctions and cytoskeletons.

Review 10. Metabolic-morphologic events in the integument of the Pacific hagfish (Eptatretus stoutii).