scholarly journals The Cell “Coat of Many Colors”

2020 ◽  
Vol 190 (4) ◽  
pp. 728-731
Author(s):  
Michael S. Goligorsky
Keyword(s):  
Cell Coat

Cell-Coat Glycosamionglycans in Cellular Transformation and Differentiation

Pathobiology ◽  
1976 ◽  
Vol 44 (3-6) ◽  
pp. 251-259 ◽  
Author(s):  
Vincenzo P. Chiarugi
Keyword(s):  
Cellular Transformation ◽  
Cell Coat

The cell coat in the early chick embryo

1974 ◽  
Vol 146 (2) ◽  
pp. 181-192 ◽  
Author(s):  
P. Mestres ◽  
K. Hinrichsen
Keyword(s):  
Chick Embryo ◽  
Cell Coat ◽  
Early Chick Embryo

scholarly journals The cell coat of the sensory and supporting cells of the rainbow trout saccular macula as demonstrated by reaction with ruthenium red and tannic acid.

1990 ◽  
Vol 38 (11) ◽  
pp. 1615-1623 ◽  
Author(s):  
K M Khan ◽  
J S Hatfield ◽  
D G Drescher
Keyword(s):  
Rainbow Trout ◽  
Tannic Acid ◽  
Ruthenium Red ◽  
Sensory Cells ◽  
Surface Coat ◽  
Basal Region ◽  
Apical Surface ◽  
Luminal Surface ◽  
Supporting Cells ◽  
Cell Coat

The surface of most cells is covered by glycoconjugates. The composition and thickness of the surface coat varies among different cell types. The purpose of the present study was to demonstrate the presence of and to characterize the cell coat surrounding the cells in the saccular macula of the rainbow trout. Tissues were fixed in Karnovsky's fixative containing either ruthenium red (0.5, 1, or 2%) or tannic acid (1, 2, or 4%). The apical surface of the sensory and supporting cells reacted with both agents. Varying the concentration of the compounds within a certain range did not significantly affect the degree of tissue staining. Whereas ruthenium red staining was distributed evenly along the luminal surface of the epithelium and along the length of the stereocilia, tannic acid formed electron-dense clumps on the luminal surface of sensory and non-sensory cells and in the basal region of the macular epithelium. The stereocilia of the sensory cells also exhibited tannic acid-positive, electrondense precipitate, particularly near the distal ends of these processes, while uniform staining of the plasma membrane was seen along their lengths. The results of this study suggest that the trout saccular macula is provided with extracellular microenvironments which may be necessary for functional integrity.

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