title: Ultrastructural localization of acid phosphatase in spermatic cells of Ceratitis capitata (Diptera).
abstract: The cytochemical study of acid phosphatase in spermatic cells of Ceratitis capitata defines the enzimatically active sites, relating this enzyme with morphological modifications of the cell components during spermiogenesis. In the axoneme, acid phosphatase is associated with the metabolism of phosphates which promote flagellar motility. The enzymatic activity verified on the cytoplasmic membranes demonstrates the importance of this enzyme in the process of cellular differentiation.
authors.affiliation: Departamento de Biologia Animal, Universidade de Brasília, Brasil.
authors.forename: S N
authors.initials: SN
authors.lastname: Báo
authors.forename: H
authors.initials: H
authors.lastname: Dolder
mesh_terms: D000135:Acid Phosphatase / Q000378:metabolism*; D000818:Animals; D002454:Cell Differentiation / Q000502:physiology; D002467:Cell Nucleus / Q000502:physiology; D002843:Chromatin / Q000378:metabolism; D004175:Diptera / Q000201:enzymology*; D005407:Flagella / Q000201:enzymology; D007854:Lead / Q000378:metabolism; D008297:Male; D008870:Microtubules / Q000201:enzymology; D008928:Mitochondria / Q000201:enzymology; D009685:Nuclear Envelope / Q000201:enzymology; D013082:Sperm Tail / Q000201:enzymology* / Q000648:ultrastructure; D013087:Spermatids / Q000201:enzymology* / Q000648:ultrastructure; D014018:Tissue Distribution
chemical_list: D002843:Chromatin; D007854:Lead; C036682:lead phosphate; D000135:Acid Phosphatase