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The intestinal epithelium of feeding Xenopus laevis tadpoles was studied using light microscope, electron microscope and autoradiographic techniques. The wall of the small intestine differs from that of most other vertebrates studied in that it lacks villous-like folds. A single prominent longitudinal fold, the typhlosole, forms about stage 49, and a series of shallow longitudinal epithelial pleats is also present in some animals. The morphology of the epithelial cells indicates that there are no differences between the cells in their degree of specialization. Three epithelial cell types were recognized: principal cells, gland cells and endocrine cells, making up about 65%, 15% and 1%, respectively, of all cells present, while approximately 20% of the cells in the epithelium are lymphocytes, 1% appear to be discharged gland cells, and 2% degenerating cells. No Paneth, caveolated or undifferentiated cells were identified. The findings are discussed in relation to other studies on cell proliferation and on nuclear transplantation.
BONNEVILLE,
FINE STRUCTURAL CHANGES IN THE INTESTINAL EPITHELIUM OF THE BULLFROG DURING METAMORPHOSIS.
1963, Pubmed
BONNEVILLE,
FINE STRUCTURAL CHANGES IN THE INTESTINAL EPITHELIUM OF THE BULLFROG DURING METAMORPHOSIS.
1963,
Pubmed
Brown,
Electron microscope studies of phosphatases in the small intestine of Rana temporaria during larval development and metamorphosis.
1968,
Pubmed
Cheng,
Origin, differentiation and renewal of the four main epithelial cell types in the mouse small intestine. III. Entero-endocrine cells.
1974,
Pubmed
Cheng,
Origin, differentiation and renewal of the four main epithelial cell types in the mouse small intestine. IV. Paneth cells.
1974,
Pubmed
Cheng,
Origin, differentiation and renewal of the four main epithelial cell types in the mouse small intestine. II. Mucous cells.
1974,
Pubmed
Cheng,
Origin, differentiation and renewal of the four main epithelial cell types in the mouse small intestine. I. Columnar cell.
1974,
Pubmed
DODGE,
CYTOCHEMICAL STAINING OF SECTIONS FROM PLASTIC-EMBEDDED FLAGELLATES.
1964,
Pubmed
GURDON,
The developmental capacity of nuclei taken from intestinal epithelium cells of feeding tadpoles.
1962,
Pubmed
,
Xenbase
HOSHINO,
Histogenesis of the intestinal epithelium of anuran larvae (Bufo vulgaris japonicus) with reference to tissue iron.
1961,
Pubmed
Hourdry,
[Ultrastructure of intestinal epithelium of larva in an amphibian anoura, Alytes obstetricans Laur].
1969,
Pubmed
Lipetz,
Ultrastructural changes accompanying the aging of human diploid cells in culture.
1972,
Pubmed
Nabeyama,
"Caveolated cells" characterized by deep surface invaginations and abundant filaments in mouse gastro-intestinal epithelia.
1974,
Pubmed
PADYKULA,
Recent functional interpretations of intestinal morphology.
1962,
Pubmed
REYNOLDS,
The use of lead citrate at high pH as an electron-opaque stain in electron microscopy.
1963,
Pubmed
STEMPAK,
AN IMPROVED STAINING METHOD FOR ELECTRON MICROSCOPY.
1964,
Pubmed