Budding: a new stage in the development of Chytridiopsis typographi (Zygomycetes: Microsporidia).
Chytridiopsis typographi Weiser, 1954, the microsporidian pathogen of the spruce bark beetle, Ips typographus L. (Coleoptera: Scolytidae), has an early developmental period with plurinucleate mother cells, each of which produces a single bud. The globular bud is connected with the mother cell by a collar and the cellular constituents are pushed to the distant end of the bud. Both the mother cell and the bud continue to develop; the bud then separates from the mother cell and grows to produce a cell of the same type. Both cells then continue sporogonial development and produce sporophorous vesicles with 16-32 spores. The process of a single mother cell producing a single bud that grows to an identical stage is new in the development of C. typographi and has no analogy in other Microsporidia.
Tonka
Tomas
T
University of South Bohemia, Ceske Budejovice, Czech Republic.
Weiser
Jaroslav
J
Weiser
Jaroslav
J
D000818:Animals; D001517:Coleoptera / Q000469:parasitology; D008018:Life Cycle Stages / Q000502:physiology*; D046529:Microscopy, Electron, Transmission; D016814:Microsporidia / Q000254:growth & development* / Q000648:ultrastructure; D016881:Microsporidiosis