INSTITUTO DE LIMNOLOGIA "DR. RAUL A. RINGUELET"
Unidad Ejecutora - UE
Morphology and Notes on Morphogenesis during Cell Division of Deviata polycirrata n. sp. and of Deviata bacilliformis (Gelei, 1954) Eigner, 1995 (Ciliophora: Kahliellidae) from Argentina
KÜPPERS G. C.; CLAPS M. C.
JOURNAL OF EUKARYOTIC MICROBIOLOGY
Wiley - Blackwell
Año: 2010 vol. 57 p. 273 - 273
Described herein are the morphology and certain morphogenetic stages of a new freshwater ciliate species, Deviata polycirrata n. sp., and of Deviata bacilliformis recorded in the soil of a dried temporary pond from Argentina. Ciliates were studied alive and after silver impregnation with Protargol. Deviata polycirrata n. sp. measures 130180 microns 4570 microns in vivo. The species possesses 89 long cirral rows on the right and 913 on the left of the oral zone, and 3 dorsal rows of dikinetids. The adoral zone is composed of 3948 membranelles. There are four macronuclear nodules and usually two micronuclei. A single contractile vacuole is located equatorially on the left body margin. This new species mainly differs from its congeners in having a higher number of cirral rows, the three long dorsal rows of dikinetids (vs. usually one to two dorsal rows of dikinetids), and a higher number of adoral membranelles. The other species reported here, D. bacilliformis, is recorded for the first time in Argentina. Unlike previous observations on this species, on the dorsal surface there are cirral rows that are preceded by cilia (combined cirral rows), and stomatogenesis begins with the proliferation of nonciliferous basal bodies some distance posterior to the buccal vertex.