Description and molecular phylogeny of Paramecium grohmannae sp. nov. (Ciliophora, Peniculida) from a wastewater treatment plant in Brazil
Paiva, Thiago da Silva; Borges, Bárbara do Nascimento; Harada, Maria Lúcia; Silva-Neto, Inácio Domingos da.
R. bras. Zoo.;
17(1): 07-19, 2016. tab, ilus
Artigo
em Inglês
| VETINDEX
| ID: vti-26262
Resumo
A new morphological species of Paramecium Müller, 1773, was discovered in samples of water with activated sludge of a wastewater treatment plant in Rio de Janeiro, Brazil. It is described based on light microscopy and its phylogenetic position hypothesized from 18S-rDNA analyses. Paramecium grohmannae sp. nov. is characterized by a unique combination of features. It is a counterclockwise rotating freshwater Paramecium with body outline intermediate between aurelia and bursaria forms, two contractile vacuoles, each with one excretion pore and usually nine collecting canals; oral opening slight below body equator; macronucleus ellipsoid to obovoid, measuring ~64 x 24 m and located in anterior half of body; one (less frequently two) globular endosomal micronuclei ~5 m in diameter with endosome ~2.5 m. Phylogenetic analyses unambiguously place the new species within the P. multimicronucleatum complex.(AU)
Biblioteca responsável:
BR68.1
Localização: BR68.1
Texto completo