adult hemocyte adult granulocyte type II Fig. 11-7, in Biology of Ticks ISBN:0-19-505910-7. TADS:0000242 TADS:0000242 Type II granulocytes are hemocytes that are easily recognized by the presence of a single type of electron dense, homogenous granules. In addition to their role in phagocytosis, these cells also serve to encapsulate foreign material too large to be ingested. They are believed to be the primary cell that degranulates and forms around bacterial cell clusters or inanimate objects. Proteases have been found localized in the granules of granulocytes in Ornithodoros moubata (Inoue et al. 2001). Whereas gram positive bacteria may be destroyed by defensins secreted from granulocytes (Johns et al. 2000), gram negative bacteria are immobilized in clusters by secretion of lectin-like Dorin-M (Kovar et al. 2000) and surrounded by hemocytes, a non-melanotic encapsulation process known as nodulation (Ceraul et al. 2002). default_namespace