| parasite-induced changes in nitric oxide levels in drosophila paramelanica. | in larvae of drosophila paramelanica, eggs and larvae of the endoparasitic wasp leptopilina heterotoma succumb to an effective host reaction that does not involve blood cell-mediated melanotic encapsulation, a response that characterizes cellular immunity in various species of drosophila and in many insects and other arthropods. a significant increase occurs, however, in the number of lamellocytes, a type of blood cell that functions in encapsulation reactions. the appearance of activated lamell ... | 2009 | 19388790 |