Morphological, ecological and molecular studies of Vannella simplex Wohlfarth-Bottermann 1960 (Lobosea, Gymnamoebia), with a new diagnosis of this species

Autor(en)

Alexander V. Smirnov, Elena S. Nassonova, Maria Holzmann, Jan Pawlowski

Abstrakt

Vannella simplex (Gymnamoebia, Vannellidae) is one of the most common amoebae species, recorded from a variety of regions. It was originally described as a freshwater species, but has also been reported from shallow-water regions of the Baltic Sea. In the present work, we investigated the morphology and biology of three V. simplex isolates, originating from geographically distant regions. Among them is one brackish water strain, isolated from artificial cyanobacterial mats, which were originally sampled in Niva° Bay (Baltic Sea, The Sound). The strain is cyst-forming and can thrive at salinity ranges from 0-50 ppt. Phylogenetic relationships were investigated by sequencing partial SSU rDNA of the cultured V. simplex isolates. Additional sequences were obtained from four environmental DNA extractions of sediment samples collected from different localities in Switzerland. Analysis of all obtained sequences revealed a monophyletic group. Based on the analysis and comparison of morphological, ecological and molecular data sets we compiled a distribution map of V. siplexm and propose an emendation of this species.

Organisation(en)

Institut für Paläontologie

Externe Organisation(en)

Russian Academy of Sciences, Université de Genève

Journal

Protist

Band

153

Seiten

367-377

Anzahl der Seiten

11

ISSN

1434-4610

Publikationsdatum

2002

Peer-reviewed

Ja

ÖFOS 2012

105118 Paläontologie

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/morphological-ecological-and-molecular-studies-of-vannella-simplex-wohlfarthbottermann-1960-lobosea-gymnamoebia-with-a-new-diagnosis-of-this-species(48d41259-7550-4f0c-8d85-d63006edf700).html