Universität zu Köln

Hoef-Emden, Kerstin (2018). Revision of the Genus Chroomonas HANSGIRG: The Benefits of DNA-containing Specimens. Protist, 169 (5). S. 662 - 682. JENA: ELSEVIER GMBH, URBAN & FISCHER VERLAG. ISSN 1434-4610

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Abstract

For years the genus Chroomonas was defined as being a cryptophyte with rectangular periplast plates, with a gullet and with biliprotein types PC 630 or 645. In phylogenetic trees the genus proved to be paraphyletic. Moreover, cells with hexagonal periplast plates were found in an SEM preparation from material of the type species C. nordstedtii. In this study, material of Hansgirg's C. nordstedtii was subjected to PCR and to sequencing of two short DNA tags. These tags allowed for an unambiguous identification of the real C. nordstedtii in the phylogeny of the blue-green cryptophytes. The genus Chroomonas corresponds to subclade 1, whereas subclades 3 and 4 do not belong to Chroomonas, if Hemiselmis is maintained. Additional examination by light and scanning electron microscopy and by spectrophotometry demonstrate that subclade 1 comprises only cells with hexagonal periplast plates and PC 630, whereas rectangular periplast plates are found only in subclades 3 and 4. Consequently the genus Chroomonas and its type species, C. nordstedtii, are revised and two novel species, C. debatzensis and C. gentoftensis sp. nov., are described. (C) 2018 Elsevier GmbH. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Hoef-Emden, Kerstin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-168812
DOI:	10.1016/j.protis.2018.04.005
Journal or Publication Title:	Protist
Volume:	169
Number:	5
Page Range:	S. 662 - 682
Date:	2018
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 SP-NOV CRYPTOPHYCEAE; SCANNING-ELECTRON-MICROSCOPY; BAYESIAN PHYLOGENETIC INFERENCE; BLUE-GREEN CRYPTOMONADS; RIBOSOMAL-RNA PHYLOGENY; MOLECULAR PHYLOGENY; RDNA PHYLOGENY; NUCLEAR 18S; MORPHOLOGY; BILIPROTEINS Multiple languages Microbiology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/16881