Ultrastructural localization of Ca(++)-ATPases in Meissner's corpuscle of the Mongolian gerbil.
The cytochemical localization of Ca(++)-ATPases in Meissner's corpuscles of the palatine mucosa of the Mongolian gerbil was studied. Wachstein-Meisel's medium modified by SALAMA et al. (1987) was used for the demonstration of low-affinity Ca(++)-ATPase or Ca++/Mg(++)-ATPase, whereas the medium devised by Körtje et al. (1990) was used for the demonstration of high-affinity Ca(++)-ATPase. Orthovanadate-containing medium, Ca(++)- or/and Mg(++)-free medium, ATP-free medium and preheated sections were used as controls. The plasma membrane of axon terminals consistently showed a strong reaction for high-affinity Ca(++)-ATPase and a capricious reaction for Ca++/Mg(++)-ATPase. In contrast, plasma membranes of the caveolae of lamellar plates showed a strongly positive reaction for Ca++/Mg(++)-ATPase.
Tachibana
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Department of Oral Anatomy, Iwate Medical University School of Dentistry, Morioka, Japan.
Nawa
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D000818:Animals; D000252:Calcium-Transporting ATPases / Q000032:analysis*; D005260:Female; D005849:Gerbillinae; D006651:Histocytochemistry; D008297:Male; D008854:Microscopy, Electron; D009061:Mouth Mucosa / Q000294:innervation*; D009411:Nerve Endings / Q000737:chemistry*; D012679:Sense Organs / Q000737:chemistry*
D000252:Calcium-Transporting ATPases