| epimerite-host epithelium relationships among eugregarines parasitizing the damselflies enallagma civile and ischnura verticalis. | the host-parasite interface between 2 species of damselflies and 4 species of eugregarines was examined at the ultrastructural level. nubenocephalus nebraskensis organisms attached to the host midgut epithelium by means of a sucker-like protomerite; the space between the epicytic folds and host epithelium was filled with electron-dense material interpreted to be adhesive in nature. actinocephalus carrilynnae organisms attached by means of the epimerite, which had no epicytic folds, and by the fl ... | 2001 | 11695420 |
| macroparasite population dynamics among geographical localities and host life cycle stages: eugregarines in ischnura verticalis. | populations of several species of gregarine parasites within a single host species, the damselfly ischnura verticalis , were examined over the course of 1 season at 4 geographic localities separated by a maximum distance of 9.7 km. gregarines, having a life cycle with both exogenous and endogenous stages, are subject to a wide variety of selective pressures that may drive adaptation. gregarine species showed some specificity for host life cycle stage, i.e., steganorhynchus dunwoodyi and hoplorhy ... | 2013 | 23301824 |