title: Carbonic anhydrase in the utero-vaginal junction of immature and mature ostriches.
abstract: 1. Sperm storage tubules in the ostrich start to develop at an early stage of oviductal growth. Concurrently, membrane-bound carbonic anhydrase was found in the cells of the storage tubules. 2. In mature ostriches the utero-vaginal junction averaged 11.5+/-2.1 cm in length and primary mucosal folds were extremely long and slender. Membrane-bound carbonic anhydrase was present in the cells of the sperm storage tubules. In the non-ciliated cells of the surface epithelium both membrane-bound and cytoplasmic activity was detected. 3. The possible role of carbonic anhydrase in the stimulation/inhibition of sperm motility by altering the pH was discussed.
authors.affiliation: Department of Animal Physiology, Swedish University of Agricultural Sciences, Uppsala. Lena.Holm@djfys.slu.se
authors.forename: L
authors.initials: L
authors.lastname: Holm
authors.forename: S D
authors.initials: SD
authors.lastname: Ruziwa
authors.forename: V
authors.initials: V
authors.lastname: Dantzer
authors.forename: Y
authors.initials: Y
authors.lastname: Ridderstråle
mesh_terms: D000367:Age Factors; D000818:Animals; D002256:Carbonic Anhydrases / Q000032:analysis*; D005260:Female; D006651:Histocytochemistry; D010057:Oviducts / Q000166:cytology / Q000201:enzymology / Q000502:physiology*; D020310:Struthioniformes / Q000502:physiology*
chemical_list: D002256:Carbonic Anhydrases