Description of Epistylis riograndensis n.sp. (Ciliophora: Peritrichia) found in an artificial lake in Southern Brazil.

Autor: Utz LR; Faculdade de Biociências. Pontifícia Universidade Católica do Rio Grande do Sul,Porto Alegre, Brazil; Email: laura.utz@pucrs.br., Farias AC; Faculdade de Biociências. Pontifícia Universidade Católica do Rio Grande do Sul,Porto Alegre, Brazil; Email: unknown., Freitas EC; Faculdade de Biociências. Pontifícia Universidade Católica do Rio Grande do Sul,Porto Alegre, Brazil; Email: unknown., de Araújo GO; Faculdade de Biociências. Pontifícia Universidade Católica do Rio Grande do Sul,Porto Alegre, Brazil; Email: unknown.
Jazyk: angličtina
Zdroj: Zootaxa [Zootaxa] 2014 Oct 03; Vol. 3869 (5), pp. 557-64. Date of Electronic Publication: 2014 Oct 03.
DOI: 10.11646/zootaxa.3869.5.5
Abstrakt: Epistylis riograndensis n. sp., a freshwater peritrich hosting symbiotic algae in its cytoplasm, was collected from an artificial lake, in a Botanical garden in Southern Brazil. Its detailed morphology was investigated using live and silver-stained specimens. The colonial sessile E. riograndensis has elongate zooids measuring, on average, 162 μm in length and 45 μm in width. A single contractile vacuole located near the infundibulum and a C-shaped macronucleus located transversely in the adoral half of the cell were also observed. The oral infraciliature revealed in silver-stained specimens was typical of peritrich ciliates. Three infundibular polykineties consisting of 3 rows of kinetosomes were observed. Molecular analyses of 18s rDNA placed E. riograndensis among other Epistylis species in the Order Vorticellida.
Databáze: MEDLINE