Immunohistochemical Localization of Adenosine 3':5'-Cyclic Monophosphate in Female Ixodid Tick Amblyomma americanum (L.) Salivary Glands

Autor: J. M. Krolak, John R. Sauer, Charlotte L. Ownby, D. M. Barker
Rok vydání: 1983
Předmět:
Zdroj: The Journal of Parasitology. 69:152
ISSN: 0022-3395
Popis: Localization of adenosine 3': 5'-cyclic monophosphate (cyclic AMP) in alveoli of salivary glands of female Amblyomma americanum (L.) was accomplished with an indirect immunofluorescent technique. Little cyclic AMP fluorescence was seen in Type I alveoli in glands of unfed females but considerable fluorescence was seen in Type I alveoli of glands obtained from females that had fed. The most intense cyclic AMP fluorescence was observed in complex granular cells of Type II and III alveoli in glands of unfed females and glands from females in early stages of tick feeding. In the latter stages of tick feeding an increase in fluorescence in Type III alveoli was observed in cells near the lumen, possibly adluminal interstitial or transformed granular cells. The salivary glands of female ixodid ticks con- sist of three types of alveoli each of which con- tains several kinds of cells (Binnington, 1978; Megaw and Beadle, 1979; Krolak et al., 1982). Type I alveoli are thought to participate in the ability of the unfed tick to absorb water from unsaturated atmospheres (Rudolph and Knulle, 1974, 1978; McMullen et al., 1976). During tick feeding, alveolar Types II and III exhibit mor- phologic changes such as overall increase in size, granular depletion in certain cells, and formation of an enormous, membranous labyrinth derived
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