| host stadium specificity in the gregarine assemblage parasitizing tenebrio molitor. | reciprocal cross-stadia experimental infections were used to demonstrate stadium specificity within the gregarine assemblage parasitizing tenebrio molitor, the yellow mealworm. gregarina cuneata, gregarina polymorpha, and gregarina steini are characteristic parasites of larval t. molitor. gregarina niphandrodes is a characteristic parasite of adult t. molitor. experimental infections were produced in all homologous host-parasite combinations. no infection was produced in heterologous or cross-st ... | 1992 | 1556647 |
| [septate contacts in syzygy of gregarina polymorpha (protozoa)]. | | 1974 | 4206668 |
| the effect of a eugregarine gregarina polymorpha (hammerschmidt) on the mealworm larva of tenebrio molitor (l.). | | 1967 | 4973771 |
| [study of the ultrastructure of gregarina polymorpha (hamm) in syzygy]. | | 1968 | 4975998 |
| a survey of gregarines associated with tenebrio molitor and opatriodes vicinus in the central region of saudi arabia. | the present work recorded five species of septate gregarines in the intestine of two species of insects they were: gregarina polymorpha (hamm.), in the gut of tenebrio molitor (l.), percentage of infection 100%, with a density of 2-6 and g. cuneata (stein), in the gut of t. molitor (l.), percentage of infection 100% with a density of 15-17; hirmocystis harpali (watson), in the mid gut of opatriodes vicinus (fairmaire), percentage of infection 34%, with a density of 19-28 and leidyana sp., in the ... | 1993 | 8482868 |
| phylogeny of gregarines (apicomplexa) as inferred from small-subunit rdna and beta-tubulin. | gregarines are thought to be deep-branching apicomplexans. accordingly, a robust inference of gregarine phylogeny is crucial to any interpretation of apicomplexan evolution, but molecular sequences from gregarines are restricted to a small number of small-subunit (ssu) rdna sequences from derived taxa. this work examines the usefulness of ssu rdna and beta-tubulin sequences for inferring gregarine phylogeny. ssu rrna genes from lecudina (mingazzini) sp., monocystis agilis stein, leidyana migrato ... | 2003 | 12656194 |
| actin and myosin in gregarina polymorpha. | actin and two class xiv unconventional myosins have been cloned from gregarina polymorpha, a large protozoan parasite inhabiting the gut of the mealworm tenebrio molitor. these proteins were most similar to their homologues expressed in the coccidian and haemosporidian apicomplexa such as toxoplasma and plasmodium despite the significant morphological differences among these parasites. both actin and g. polymorpha myosin a (gpmyoa), a 92.6-kda protein characterized by a canonical myosin head dom ... | 2004 | 15083530 |
| gpmyof, a wd40 repeat-containing myosin associated with the myonemes of gregarina polymorpha. | this study presents the first characterization of a wd40 repeat-containing myosin identified in the apicomplexan parasite gregarina polymorpha. this 222.7 kda myosin, gpmyof, contains a canonical myosin motor domain, a neck domain with 6 iq motifs, a tail domain containing short regions of predicted coiled-coil structure, and, most notably, multiple wd40 repeats at the c-terminus. in other proteins such repeats assemble into a beta-propeller structure implicated in mediating protein-protein inte ... | 2008 | 18372636 |
| eugregarine trophozoite detachment from the host epithelium via epimerite retraction: fiction or fact? | eugregarines represent a diverse group of apicomplexa parasitising numerous invertebrates. their sporozoites generally develop into epicellular trophozoites attached to the host epithelium by a specialised attachment organelle known as an epimerite. they are considered peculiar protists due to their unique cell architecture and dimensions as well as their attachment strategy which is similar to that of cryptosporidia. using electron and fluorescence microscopy, the fine structure of the epimerit ... | 2009 | 19460380 |