Fine structure of trophozoites of the gregarine Leidyana ephestiae (Apicomplexa: Eugregarinida) parasitic in Ephestia kuehniella larvae (Lepidoptera).

VALIGUROVÁ, Andrea and Břetislav KOUDELA. Fine structure of trophozoites of the gregarine Leidyana ephestiae (Apicomplexa: Eugregarinida) parasitic in Ephestia kuehniella larvae (Lepidoptera). European Journal of Protistology. 2005, vol. 41, No 3, p. 209-218. ISSN 0932-4739.

Basic information

• Original name: Fine structure of trophozoites of the gregarine Leidyana ephestiae (Apicomplexa: Eugregarinida) parasitic in Ephestia kuehniella larvae (Lepidoptera).
• Name in Czech: Ultrastruktura trofozoitu gregariny Leidyana ephestiae (Apicomplexa: Eugregarinida) parazitujici v larvach Ephestia kuehniella (Lepidoptera).
• Authors: VALIGUROVÁ, Andrea (703 Slovakia, guarantor) and Břetislav KOUDELA (203 Czech Republic).
• Edition: European Journal of Protistology, 2005, 0932-4739.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: United Kingdom of Great Britain and Northern Ireland
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 1.253
• RIV identification code: RIV/00216224:14310/05:00013912
• Organization unit: Faculty of Science
• UT WoS: 000232021200006
• Keywords in English: trophozoite; epimerite; Leidyana; ultrastructure; Eugregarinida; Sporozoa
• Tags: epimerite, Eugregarinida, Leidyana, Sporozoa, trophozoite, ultrastructure

Abstract

The ultrastructure of the eugregarine Leidyana ephestiae, parasitic in the larval gut of the flour moth, Ephestia kuehniella, is described. Guts of experimentally infected larvae of E. kuehniella were fixed and sectioned for electron microscope studies of young and mature trophozoites. Young unsegmented trophozoites were small, oval to ovoid, and possessed a simple, globular epimerite. The plasma membrane covering the epimerite region was continuous with the plasma membrane of the protodeutomerite and was in close contact with that of the host cell. Three cortical membranes covered the protodeutomerite region. Folding of the protodeutomeritic epicyte occurred after about two days of development of the gregarine. After three to four days the body of the trophozoite became differentiated into three segments. A septum was visible between protomerite and deutomerite, but there was nothing similar to this structure between epimerite and protomerite. Fully developed trophozoites showed a large ovoid epimerite containing many mitochondria and vesicles. The epimerite was situated on a short neck filled with fibrils. The cytoplasm of protomerite and deutomerite was rich in amylopectin granules and electron-dense bodies.

Abstract (in Czech)

Byla studovana ultrastruktura eugregariny Leidyana ephestiae. Zkoumana byla predevsim ranna stadia trofozoitu.

Links

• MSM0021622416, plan (intention): Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time