Universität zu Köln

Schoenle, Alexandra, Zivaljic, Suzana, Prausse, Dennis, Voss, Janine, Jakobsen, Kirsten and Arndt, Hartmut ORCID: 0000-0003-2811-3595 (2019). New phagotrophic euglenids from deep sea and surface waters of the Atlantic Ocean (Keelungia nitschei, Petalomonas acorensis, Ploeotia costaversata). Eur. J. Protistol., 69. S. 102 - 117. MUNICH: ELSEVIER GMBH. ISSN 1618-0429

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Abstract

New phagotrophic euglenoid species from marine surface waters and the deep sea were isolated and described by light and scanning electron microscopy and 18S rDNA sequencing: Keelungia nitschei, Petalomonas acorensis and Ploeotia costaversata. The morphological characteristics of Keelungia nitschei agree with Keelungia pulex besides the slightly truncated anterior front of the cell of our strain. Phylogenetic analysis indicated low sequence similarity between K. nitschei and K. pulex (87.3%). Ploeotia costaversata clustered within the Ploeotia costata Glade with a sequence similarity of 96.1% to P costata strain Tam. Ultrastructural characteristics of our strain revealed helically twisted strips towards both poles of the protoplast. 18S rDNA phylogenies showed that Petalornonas acorensis is related to the Glade of Petalornonas cantuscygni/Scytornonas saepesedens with the highest sequence similarity of 81.2% to P cantuscygni. Six pellicle strips are visible, while two of them reach only the middle of the cell and four (two longitudinal, two helically twisted) join at the posterior front of the cell. Pressure experiments showed that the deep-sea strain K. nitschei was better adapted to high hydrostatic pressures (up to 500 bar) at 4 degrees C than the two surface water strains. All three strains increased the database (18S rDNA) of the underrepresented group of phagotrophic euglenids. (C) 2019 Elsevier GmbH. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schoenle, Alexandra UNSPECIFIED UNSPECIFIED UNSPECIFIED Zivaljic, Suzana UNSPECIFIED UNSPECIFIED UNSPECIFIED Prausse, Dennis UNSPECIFIED UNSPECIFIED UNSPECIFIED Voss, Janine UNSPECIFIED UNSPECIFIED UNSPECIFIED Jakobsen, Kirsten UNSPECIFIED UNSPECIFIED UNSPECIFIED Arndt, Hartmut UNSPECIFIED orcid.org/0000-0003-2811-3595 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-146425
DOI:	10.1016/j.ejop.2019.02.007
Journal or Publication Title:	Eur. J. Protistol.
Volume:	69
Page Range:	S. 102 - 117
Date:	2019
Publisher:	ELSEVIER GMBH
Place of Publication:	MUNICH
ISSN:	1618-0429
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PHYLOGENETIC POSITION; EUKARYOTIC DIVERSITY; FLAGELLATES PROTISTA; HYDROTHERMAL VENT; BOTANY BAY; SSU RDNA; MARINE; SEDIMENTS; RNA; EUGLENOZOA Multiple languages Microbiology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14642