A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica)
The marine araphid diatom Pteroncola pottercovei sp. nov. is described for a coastal Antarctic environment, based on light and scanning electron microscopy observations. The new species was found as solitary cells in the phytoplankton and epiphytic on the chains of other diatoms. It can be distingui...
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ftconicet:oai:ri.conicet.gov.ar:11336/31181 2023-10-09T21:47:13+02:00 A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica) Almandoz, Gaston Osvaldo Ferrario, Martha Elba Sullivan, Michael J. Ector, Luc Schloss, Irene Ruth application/pdf http://hdl.handle.net/11336/31181 eng eng International Phycological Society info:eu-repo/semantics/altIdentifier/url/http://www.phycologia.org/doi/abs/10.2216/13-210.1 http://hdl.handle.net/11336/31181 Schloss, Irene Ruth; Ector, Luc; Sullivan, Michael J.; Ferrario, Martha Elba; Almandoz, Gaston Osvaldo; A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica); International Phycological Society; Phycologia; 53; 2; 3-2014; 188-194 0031-8884 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Antartida Phytoplankton New Diatom Species https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet 2023-09-24T19:02:17Z The marine araphid diatom Pteroncola pottercovei sp. nov. is described for a coastal Antarctic environment, based on light and scanning electron microscopy observations. The new species was found as solitary cells in the phytoplankton and epiphytic on the chains of other diatoms. It can be distinguished from P. inane, the only recognized species of the genus up to now, mainly by the presence of a well developed sternum and a hyaline mantle, apical pore fields composed of three horizontal rows of pores, a single rimoportula per valve, and a lower striae density. Two morphotypes could be distinguished in relation to the ultrastructure of alveolate (chambered) striae in external view. While most specimens presented striae formed by transapically elongated slits others showed striae composed of a row of small areolae. An emended description of Pteroncola is provided as well as a comparison with related genera in the Fragilariaceae, such as Brandinia, Catacombas, Hyalosynedra, Fragilaria, Fossula, Staurosirella and Thalassioneis. Fil: Almandoz, Gaston Osvaldo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ferrario, Martha Elba. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Sullivan, Michael J. No especifica; Fil: Ector, Luc. Public Research Centre. Department of Environment and Agro-biotechnologies; Luxemburgo Fil: Schloss, Irene Ruth. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Université du Québec à Rimouski; Canadá Article in Journal/Newspaper Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino South Shetland Islands CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic South Shetland Islands Argentino Argentina Sullivan ENVELOPE(-63.817,-63.817,-69.650,-69.650) Gaston ENVELOPE(65.783,65.783,-70.417,-70.417) |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Antartida Phytoplankton New Diatom Species https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
Antartida Phytoplankton New Diatom Species https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Almandoz, Gaston Osvaldo Ferrario, Martha Elba Sullivan, Michael J. Ector, Luc Schloss, Irene Ruth A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica) |
topic_facet |
Antartida Phytoplankton New Diatom Species https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
The marine araphid diatom Pteroncola pottercovei sp. nov. is described for a coastal Antarctic environment, based on light and scanning electron microscopy observations. The new species was found as solitary cells in the phytoplankton and epiphytic on the chains of other diatoms. It can be distinguished from P. inane, the only recognized species of the genus up to now, mainly by the presence of a well developed sternum and a hyaline mantle, apical pore fields composed of three horizontal rows of pores, a single rimoportula per valve, and a lower striae density. Two morphotypes could be distinguished in relation to the ultrastructure of alveolate (chambered) striae in external view. While most specimens presented striae formed by transapically elongated slits others showed striae composed of a row of small areolae. An emended description of Pteroncola is provided as well as a comparison with related genera in the Fragilariaceae, such as Brandinia, Catacombas, Hyalosynedra, Fragilaria, Fossula, Staurosirella and Thalassioneis. Fil: Almandoz, Gaston Osvaldo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ferrario, Martha Elba. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Sullivan, Michael J. No especifica; Fil: Ector, Luc. Public Research Centre. Department of Environment and Agro-biotechnologies; Luxemburgo Fil: Schloss, Irene Ruth. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Université du Québec à Rimouski; Canadá |
format |
Article in Journal/Newspaper |
author |
Almandoz, Gaston Osvaldo Ferrario, Martha Elba Sullivan, Michael J. Ector, Luc Schloss, Irene Ruth |
author_facet |
Almandoz, Gaston Osvaldo Ferrario, Martha Elba Sullivan, Michael J. Ector, Luc Schloss, Irene Ruth |
author_sort |
Almandoz, Gaston Osvaldo |
title |
A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica) |
title_short |
A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica) |
title_full |
A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica) |
title_fullStr |
A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica) |
title_full_unstemmed |
A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica) |
title_sort |
new pteroncola (bacillariophyceae) from the south shetland islands (antarctica) |
publisher |
International Phycological Society |
url |
http://hdl.handle.net/11336/31181 |
long_lat |
ENVELOPE(-63.817,-63.817,-69.650,-69.650) ENVELOPE(65.783,65.783,-70.417,-70.417) |
geographic |
Antarctic South Shetland Islands Argentino Argentina Sullivan Gaston |
geographic_facet |
Antarctic South Shetland Islands Argentino Argentina Sullivan Gaston |
genre |
Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino South Shetland Islands |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://www.phycologia.org/doi/abs/10.2216/13-210.1 http://hdl.handle.net/11336/31181 Schloss, Irene Ruth; Ector, Luc; Sullivan, Michael J.; Ferrario, Martha Elba; Almandoz, Gaston Osvaldo; A new Pteroncola (Bacillariophyceae) from the South Shetland Islands (Antarctica); International Phycological Society; Phycologia; 53; 2; 3-2014; 188-194 0031-8884 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
_version_ |
1779310154240491520 |