Morphological changes in the salivary glands of Amblyomma cajennense females (Acari: Ixodidae) in different feeding stages on rabbits at first infestation.

Experimental & Applied Acarology
P H NunesMaria Izabel Camargo-Mathias


This study examined salivary glands of unfed, partially engorged, and engorged females of the tick Amblyomma cajennense on rabbits at first infestation using histological and histochemical techniques. In type I acini, no significant changes were observed among the three feeding conditions. In type II acini of unfed females, c1, c2, and c4 cells were described for the first time in this species. In a comparison among the three feeding conditions, an increase in this acinus was observed, due to the increase in secretion in c1, c2, and c4 cells and the appearance of c3 cells. In engorged females, some cells were still active. Type III acini presented cells d, e, and f containing secretion in unfed females. In partially engorged females, these cells were devoid of secretion. In engorged females, type III acini exhibited a reduced lumen. After engorgement, all acini underwent a degenerative process, as observed in females after two to five days post-engorgement.


Oct 1, 1976·The Australian Journal of Experimental Biology and Medical Science·R G DickinsonM P Hegarty
Feb 1, 1985·International Journal for Parasitology·A R WalkerH S Gill
Oct 1, 1970·Journal of Insect Physiology·B Feldman-MuhsamS Saliternik-Givant
Mar 19, 2008·Experimental Parasitology·Karim Christina Scopinho FurquimMaria Izabel Camargo Mathias

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Feb 9, 2011·Experimental & Applied Acarology·Sandra Eloisi DenardiMaria Izabel Camargo-Mathias
Jul 8, 2010·Micron : the International Research and Review Journal for Microscopy·Maria Izabel Camargo MathiasGervásio Henrique Bechara
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