Acid phosphatase

Expression of acid phosphatase in the seminiferous epithelium of vertebrates

R. L. Peruquetti, Taboga, S. R., and Azeredo-Oliveira, M. T. V., Expression of acid phosphatase in the seminiferous epithelium of vertebrates, vol. 9, pp. 620-628, 2010.

Acid phosphatases (AcPs) are known to provide phosphate to tissues that have high energy requirements, especially during development, growth and maturation. During spermatogenesis AcP activity is manifested in heterophagous lysosomes of Sertoli cells. This phagocytic function appears to be hormone-independent.

Programmed cell death in salivary glands of Drosophila arizonae and Drosophila mulleri

P. Ianella, Azeredo-Oliveira, M. T. V., and Itoyama, M. M., Programmed cell death in salivary glands of Drosophila arizonae and Drosophila mulleri, vol. 7, pp. 476-486, 2008.

Programmed cell death (PCD) in insect metamorphosis assumes a great diversity of morphology and controlling processes that are still not well understood. With the objective of obtaining information about the PCD process, salivary glands of Drosophila arizonae and D. mulleri were studied during larval-pupal development. From the results, it can be concluded that the type of the PCD that occurs in these organs is morphologically typical of apoptosis (formation of apoptotic nuclei, followed by fragmentation into apoptotic bodies).

Acid phosphatase activity distribution in salivary glands of triatomines (Heteroptera, Reduviidae, Triatominae)

A. C. B. Anhê, Lima-Oliveira, A. P. M., and Azeredo-Oliveira, M. T. V., Acid phosphatase activity distribution in salivary glands of triatomines (Heteroptera, Reduviidae, Triatominae), vol. 6, pp. 197-205, 2007.

Acid phosphatase activity (Gömori technique) in salivary gland cells was investigated in adult insects (males and females) of four species of triatomines: Triatoma infestans, Panstrongylus megistus, Rhodnius neglectus, and Rhodnius prolixus. Binucleated cells with bulky and polyploidy nuclei were detected, with acid phosphatase activity in the heterochromatin and nucleolus, which showed the most intense response.

Identification of nutrient-dependent changes in extracellular pH and acid phosphatase secretion in Aspergillus nidulans

J. S. Freitas, Silva, E. M., and Rossi, A., Identification of nutrient-dependent changes in extracellular pH and acid phosphatase secretion in Aspergillus nidulans, vol. 6. pp. 721-729, 2007.

The present study was designed to identify nutrient-dependent changes in extracellular pH and acid phosphatase secretion in the biA1 palC4 mutant strain of Aspergillus nidulans. The palC4 mutant was selected as lacking alkaline phosphatase, but having substantially increased acid phosphatase activity when grown on solid minimal medium under phosphate starvation, pH 6.5.

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