September 1980
Volume 19, Issue 9
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Articles  |   September 1980
Special characteristics of the polar regions of the rat lens: morphology and phosphatase histochemistry.
Investigative Ophthalmology & Visual Science September 1980, Vol.19, 1038-1052. doi:
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      W C Gorthy, J W Anderson; Special characteristics of the polar regions of the rat lens: morphology and phosphatase histochemistry.. Invest. Ophthalmol. Vis. Sci. 1980;19(9):1038-1052.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Ultrastructural analyses of the normal rat lens revealed a number of characteristics present regionally within the anterior and posterior polar regions: (1) elaborate folding of the plasma membrane, including numerous microvillar processes; (2) wide intercellular spaces at basolateral cell borders; (3) concentrations of mitochondria; and (4) ouabain-sensitive Na-K-ATPase activity. These features, confined primarily to the suture systems and the anterior epithelium, suggested a cortical as well as an epithelial involvement in ion-linked fluid transport, supporting recent physiological investigations of the lens. Acid phosphatase localized in aggregations of smooth endoplasmic reticulum at the lens fiber ends suggested that this micro-organelle may be a source of acid hydrolases in the normal lens.

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