THE DEVELOPMENT AND POSSIBLE RELATIONSHIPS OF A NEW ATKINSIELLA PARASITIC IN INSECT EGGS
1977; Wiley; Volume: 64; Issue: 6 Linguagem: Inglês
10.1002/j.1537-2197.1977.tb11917.x
ISSN1537-2197
Autores Tópico(s)Insect symbiosis and bacterial influences
ResumoAtkinsiella entomophaga is a holocarpic parasite in eggs of various midges and caddis flies. Primary zoospores escape through long discharge tubes and assume an abbreviated period of motility before encysting. Laterally biflagellate secondary zoospores subsequently emerge from the cysts. Coincident with discharge tube formation, the thallus undergoes strong vacuolization giving the protoplast a reticulate aspect with nuclei situated between the vacuoles and connected to one another by protoplasmic threads. Stages in zoosporogenesis resemble those of members of the Lagenidiales. It is proposed that Atkinsiella be included in the Eurychasmaceae along with Eurychasma and Eurychasmidium and that the family be transferred to the Lagenidiales. All members of this family have diplanetic zoospores.
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