Universität zu Köln

Dumack, Kenneth, Baumann, Christina and Bonkowski, Michael ORCID: 0000-0003-2656-1183 (2016). A Bowl with Marbles: Revision of the Thecate Amoeba Genus Lecythium (Chlamydophryidae, Tectofilosida, Cercozoa, Rhizaria) Includinga Description of Four New Species and an Identification Key. Protist, 167 (5). S. 440 - 460. JENA: ELSEVIER GMBH, URBAN & FISCHER VERLAG. ISSN 1434-4610

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Abstract

Although testate amoebae have attracted interest of protistologists for more than 150 years, some groups especially those with a hyaline, organic test (= theca) are still poorly known. One of those is the genus Lecythium (Chlamydophryidae, Tectofilosida, Cercozoa, Rhizaria), first described by Hertwig and Lesser in 1874. Only old, sometimes obscure, species descriptions were available until only recently a new species of Lecythium was described and a small ribosomal subunit RNA gene (SSU) sequence was provided. To shed light on the phylogeny and taxonomy of Lecythium, we (a) cultured six isolates of five Lecythium species and provide morphological as well as ecological observations, (b) obtained six new SSU sequences and conducted phylogenetic analyses of the Tectofilosida, showing that Lecythium splits into terrestrial and freshwater clades, and (c) did an intensive literature research on testate amoebae with a theca and provide an illustrated identification key focusing on Lecythium. For the first time, the presence of cysts in the genus Lecythium is reported and we compared those to the cysts of the presumed closely related Chlamydophrys stercorea. Our results suggest that still many undescribed Lecythium species will be found in terrestrial and freshwater habitats.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Dumack, Kenneth UNSPECIFIED UNSPECIFIED UNSPECIFIED Baumann, Christina UNSPECIFIED UNSPECIFIED UNSPECIFIED Bonkowski, Michael UNSPECIFIED orcid.org/0000-0003-2656-1183 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-257468
DOI:	10.1016/j.protis.2016.08.001
Journal or Publication Title:	Protist
Volume:	167
Number:	5
Page Range:	S. 440 - 460
Date:	2016
Publisher:	ELSEVIER GMBH, URBAN & FISCHER VERLAG
Place of Publication:	JENA
ISSN:	1434-4610
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BAYESIAN PHYLOGENETIC INFERENCE; RNA-CODING REGIONS; PROTOZOA; LINEAGE; MODELS; LIFE Multiple languages Microbiology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/25746