Pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of Wood Bay (Ross Sea, Antarctica): ultrastructure, pigments and 18S rRNA gene sequence
A microalga was isolated from the pack-ice of Wood Bay (Antarctica) during austral summer 1993–4. By comparison with an authentic strain obtained from Sammlung von Algenkulturen at the University of Göttingen (SAG 860–3), its ultrastructural details and pigment composition were very similar to thos...
Published in: | European Journal of Phycology |
---|---|
Main Authors: | , , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
CAMBRIDGE UNIV PRESS, 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 USA
1999
|
Subjects: | |
Online Access: | http://hdl.handle.net/11577/2459895 https://doi.org/10.1080/09670269910001736202 |
id |
ftunivpadovairis:oai:www.research.unipd.it:11577/2459895 |
---|---|
record_format |
openpolar |
spelling |
ftunivpadovairis:oai:www.research.unipd.it:11577/2459895 2024-04-21T07:52:35+00:00 Pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of Wood Bay (Ross Sea, Antarctica): ultrastructure, pigments and 18S rRNA gene sequence ANDREOLI, CARLO MORO, ISABELLA LA ROCCA, NICOLETTA RIGONI, FERNANDA DALLA VALLE, LUISA BARGELLONI, LUCA Andreoli, Carlo Moro, Isabella LA ROCCA, Nicoletta Rigoni, Fernanda DALLA VALLE, Luisa Bargelloni, Luca 1999 http://hdl.handle.net/11577/2459895 https://doi.org/10.1080/09670269910001736202 unknown CAMBRIDGE UNIV PRESS, 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 USA info:eu-repo/semantics/altIdentifier/wos/WOS:000081085800006 volume:34 issue:2 firstpage:149 lastpage:159 numberofpages:11 journal:EUROPEAN JOURNAL OF PHYCOLOGY http://hdl.handle.net/11577/2459895 doi:10.1080/09670269910001736202 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85024196673 info:eu-repo/semantics/article 1999 ftunivpadovairis https://doi.org/10.1080/09670269910001736202 2024-03-28T01:33:52Z A microalga was isolated from the pack-ice of Wood Bay (Antarctica) during austral summer 1993–4. By comparison with an authentic strain obtained from Sammlung von Algenkulturen at the University of Göttingen (SAG 860–3), its ultrastructural details and pigment composition were very similar to those of Pleurochloris meiringensis. However, sequence analysis of the entire 18S rRNA gene revealed substantial genetic divergence (57 nucleotide substitutions and 19 insertions/deletions) between SAG 860–3 and the Antarctic isolate. Phylogenetic analysis of complete 18S rRNA gene sequences from 18 microalgal species, including the two strains studied, rejected the hypothesis that the Antarctic isolate is the sister species to Pleurochloris meiringensis. Molecular evidence indicates that the Antarctic isolate is the sister group of a clade that comprises two other representatives of the Xanthophyceae (synonym Tribophyceae): Pleurochloris meiringensis and Botrydiopsis intercedens. This leads us to conclude that this microalga is a new species belonging to a new genus and the name Pseudopleurochloris antarctica is proposed. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Padua Research Archive (IRIS - Università degli Studi di Padova) European Journal of Phycology 34 2 149 159 |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
unknown |
description |
A microalga was isolated from the pack-ice of Wood Bay (Antarctica) during austral summer 1993–4. By comparison with an authentic strain obtained from Sammlung von Algenkulturen at the University of Göttingen (SAG 860–3), its ultrastructural details and pigment composition were very similar to those of Pleurochloris meiringensis. However, sequence analysis of the entire 18S rRNA gene revealed substantial genetic divergence (57 nucleotide substitutions and 19 insertions/deletions) between SAG 860–3 and the Antarctic isolate. Phylogenetic analysis of complete 18S rRNA gene sequences from 18 microalgal species, including the two strains studied, rejected the hypothesis that the Antarctic isolate is the sister species to Pleurochloris meiringensis. Molecular evidence indicates that the Antarctic isolate is the sister group of a clade that comprises two other representatives of the Xanthophyceae (synonym Tribophyceae): Pleurochloris meiringensis and Botrydiopsis intercedens. This leads us to conclude that this microalga is a new species belonging to a new genus and the name Pseudopleurochloris antarctica is proposed. |
author2 |
Andreoli, Carlo Moro, Isabella LA ROCCA, Nicoletta Rigoni, Fernanda DALLA VALLE, Luisa Bargelloni, Luca |
format |
Article in Journal/Newspaper |
author |
ANDREOLI, CARLO MORO, ISABELLA LA ROCCA, NICOLETTA RIGONI, FERNANDA DALLA VALLE, LUISA BARGELLONI, LUCA |
spellingShingle |
ANDREOLI, CARLO MORO, ISABELLA LA ROCCA, NICOLETTA RIGONI, FERNANDA DALLA VALLE, LUISA BARGELLONI, LUCA Pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of Wood Bay (Ross Sea, Antarctica): ultrastructure, pigments and 18S rRNA gene sequence |
author_facet |
ANDREOLI, CARLO MORO, ISABELLA LA ROCCA, NICOLETTA RIGONI, FERNANDA DALLA VALLE, LUISA BARGELLONI, LUCA |
author_sort |
ANDREOLI, CARLO |
title |
Pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of Wood Bay (Ross Sea, Antarctica): ultrastructure, pigments and 18S rRNA gene sequence |
title_short |
Pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of Wood Bay (Ross Sea, Antarctica): ultrastructure, pigments and 18S rRNA gene sequence |
title_full |
Pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of Wood Bay (Ross Sea, Antarctica): ultrastructure, pigments and 18S rRNA gene sequence |
title_fullStr |
Pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of Wood Bay (Ross Sea, Antarctica): ultrastructure, pigments and 18S rRNA gene sequence |
title_full_unstemmed |
Pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of Wood Bay (Ross Sea, Antarctica): ultrastructure, pigments and 18S rRNA gene sequence |
title_sort |
pseudopleurochloris antarctica gen. et sp. nov. a new coccoid xanthophycean from pack-ice of wood bay (ross sea, antarctica): ultrastructure, pigments and 18s rrna gene sequence |
publisher |
CAMBRIDGE UNIV PRESS, 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 USA |
publishDate |
1999 |
url |
http://hdl.handle.net/11577/2459895 https://doi.org/10.1080/09670269910001736202 |
genre |
Antarc* Antarctic Antarctica Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000081085800006 volume:34 issue:2 firstpage:149 lastpage:159 numberofpages:11 journal:EUROPEAN JOURNAL OF PHYCOLOGY http://hdl.handle.net/11577/2459895 doi:10.1080/09670269910001736202 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85024196673 |
op_doi |
https://doi.org/10.1080/09670269910001736202 |
container_title |
European Journal of Phycology |
container_volume |
34 |
container_issue |
2 |
container_start_page |
149 |
op_container_end_page |
159 |
_version_ |
1796935810761621504 |