Revision of the phylogeny of Placididea (Stramenopiles): Molecular and morphological diversity of novel placidid protists from extreme aquatic environments

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Title:Main Title: Revision of the phylogeny of Placididea (Stramenopiles): Molecular and morphological diversity of novel placidid protists from extreme aquatic environments
Description:Abstract: Recent studies suggested that the diversity of microbial eukaryotes in hypersaline environments is widely underestimated. Placidids are a group of heterotrophic stramenopile flagellates that are frequently found in these environments, but up to now only very few species were isolated and fully described, mostly from marine or brackish water sites. In this study, we extend the known diversity of Placididea by three new genera (Allegra, Haloplacidia, and Placilonga) compromising nine new spe- cies, isolated from athalassic, mostly hypersaline environments (Allegra dunaii, Allegra atacamiensis, Allegra hypersalina, Haloplacidia cosmopolita, Suigetsumonas keniensis) and marine waters (Placilonga atlantica, Placidia azorensis, Placidia abyssalis, Wobblia pacifica) including a description of their morphology and molecular phylogeny. In total, 36 strains were comparatively analysed. Studies from athalassic waters revealed an especially high number of different genotypes. A multi- gene analysis based on a ten genes dataset revealed a clear separation into marine, athalassic and brackish water clades. Sev- eral representatives were found to cope with hypersaline conditions from 20 to 250 PSU, even up to 284 PSU, suggesting that they may form a halotolerant group.
Responsible Party
Creators:Frank Nitsche (Author), Alexandra Rybarski (Author), Hartmut Arndt (Author)
Publisher:Esevier
Publication Year:2021
Topic
CRC1211 Topic:Biology
Related Subproject:B2
Subjects:Keywords: Biodiversity, Molecular Biology
Geogr. Information Topic:Biota
File Details
Filename:Rybarski_et_al_2021_Eur_J_Protistol.pdf
Data Type:Data Paper - biodiversity
File Size:2.4 MB
Date:Accepted: 11.05.2021
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
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Download Permission:Free
General Access and Use Conditions:According to the CRC1211DB data policy agreement.
Access Limitations:According to the CRC1211DB data policy agreement.
Licence:[CRC1211DB] Data policy agreement
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Publication Status:In Print
Review Status:Peer reviewed
Publication Type:Article
Article Type:Journal
Source:European Journal of Protistology
Volume:81
Number of Pages:20 (1 - 20)
Metadata Details
Metadata Creator:Frank Nitsche
Metadata Created:08.09.2023
Metadata Last Updated:08.09.2023
Subproject:B2
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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