Ecological, physiological and biomolecular surveys on microalgae from Ross Sea (Antarctica)
Results of analyses on pico, nano- and microphytoplankton from the sea-ice of Terra Nova Bay, during austral summer 1995- 96, are reported. In this environment, among the 116 taxa that we found, the most abundant were diatoms (102). The interior algal community of the sea-ice was dominated by Fragil...
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ftunivpadovairis:oai:www.research.unipd.it:11577/2467358 2024-02-11T09:56:06+01:00 Ecological, physiological and biomolecular surveys on microalgae from Ross Sea (Antarctica) ANDREOLI, CARLO MORO, ISABELLA LA ROCCA, NICOLETTA DALLA VALLE, LUISA MASIERO, LUCIANO RASCIO, NICOLETTA DALLA VECCHIA, FRANCESCA Andreoli, Carlo Moro, Isabella LA ROCCA, Nicoletta DALLA VALLE, Luisa Masiero, Luciano Rascio, Nicoletta DALLA VECCHIA, Francesca 2000 http://hdl.handle.net/11577/2467358 unknown info:eu-repo/semantics/altIdentifier/wos/WOS:000089847600023 volume:67 issue:supplement 1 firstpage:147 lastpage:156 numberofpages:10 journal:THE ITALIAN JOURNAL OF ZOOLOGY http://hdl.handle.net/11577/2467358 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0033752508 info:eu-repo/semantics/article 2000 ftunivpadovairis 2024-01-24T17:42:40Z Results of analyses on pico, nano- and microphytoplankton from the sea-ice of Terra Nova Bay, during austral summer 1995- 96, are reported. In this environment, among the 116 taxa that we found, the most abundant were diatoms (102). The interior algal community of the sea-ice was dominated by Fragilariopsisspp., Arcbeomonas areolata, and hypnozygotes of Porella glacialis. In the algal mat at the deeper layer of the ice, however, diatoms showed higher density. Photoautotrophic picoplankton was also present and red-fluorescing cells, small eukaryotes and phyco- cyanin-rich cyanobacteria prevailed over phycoerythrin-rich cyanobacteria. Besides these data, ultrastructural, physiological and biomolecular surveys on three Antarctic sea water microal- gae, of which only Koliellaantarctica was known, were also car- ried out. The 18S rDNA gene sequences of K. antarctica and oth- er closely related species allowed us to verify that the Koliella genus belongs to Trebouxiophyceae, while as regards the other two taxa, one of them was found to belong to the Heterococcus and the other to the Pyramimonas genus. They might be unde- scribed species of the Southern Ocean. Pyramimonas sp., found in Terra Nova Bay during the austral summer 1998-99, carried tri- chocysts. Moreover, K. antartica, like Heterococcus sp., showed great ability to live both in fresh water and at different salinities. Article in Journal/Newspaper Antarc* Antarctic Antarctica antartic* Ross Sea Sea ice Southern Ocean Padua Research Archive (IRIS - Università degli Studi di Padova) Antarctic Southern Ocean Austral Ross Sea Terra Nova Bay |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
unknown |
description |
Results of analyses on pico, nano- and microphytoplankton from the sea-ice of Terra Nova Bay, during austral summer 1995- 96, are reported. In this environment, among the 116 taxa that we found, the most abundant were diatoms (102). The interior algal community of the sea-ice was dominated by Fragilariopsisspp., Arcbeomonas areolata, and hypnozygotes of Porella glacialis. In the algal mat at the deeper layer of the ice, however, diatoms showed higher density. Photoautotrophic picoplankton was also present and red-fluorescing cells, small eukaryotes and phyco- cyanin-rich cyanobacteria prevailed over phycoerythrin-rich cyanobacteria. Besides these data, ultrastructural, physiological and biomolecular surveys on three Antarctic sea water microal- gae, of which only Koliellaantarctica was known, were also car- ried out. The 18S rDNA gene sequences of K. antarctica and oth- er closely related species allowed us to verify that the Koliella genus belongs to Trebouxiophyceae, while as regards the other two taxa, one of them was found to belong to the Heterococcus and the other to the Pyramimonas genus. They might be unde- scribed species of the Southern Ocean. Pyramimonas sp., found in Terra Nova Bay during the austral summer 1998-99, carried tri- chocysts. Moreover, K. antartica, like Heterococcus sp., showed great ability to live both in fresh water and at different salinities. |
author2 |
Andreoli, Carlo Moro, Isabella LA ROCCA, Nicoletta DALLA VALLE, Luisa Masiero, Luciano Rascio, Nicoletta DALLA VECCHIA, Francesca |
format |
Article in Journal/Newspaper |
author |
ANDREOLI, CARLO MORO, ISABELLA LA ROCCA, NICOLETTA DALLA VALLE, LUISA MASIERO, LUCIANO RASCIO, NICOLETTA DALLA VECCHIA, FRANCESCA |
spellingShingle |
ANDREOLI, CARLO MORO, ISABELLA LA ROCCA, NICOLETTA DALLA VALLE, LUISA MASIERO, LUCIANO RASCIO, NICOLETTA DALLA VECCHIA, FRANCESCA Ecological, physiological and biomolecular surveys on microalgae from Ross Sea (Antarctica) |
author_facet |
ANDREOLI, CARLO MORO, ISABELLA LA ROCCA, NICOLETTA DALLA VALLE, LUISA MASIERO, LUCIANO RASCIO, NICOLETTA DALLA VECCHIA, FRANCESCA |
author_sort |
ANDREOLI, CARLO |
title |
Ecological, physiological and biomolecular surveys on microalgae from Ross Sea (Antarctica) |
title_short |
Ecological, physiological and biomolecular surveys on microalgae from Ross Sea (Antarctica) |
title_full |
Ecological, physiological and biomolecular surveys on microalgae from Ross Sea (Antarctica) |
title_fullStr |
Ecological, physiological and biomolecular surveys on microalgae from Ross Sea (Antarctica) |
title_full_unstemmed |
Ecological, physiological and biomolecular surveys on microalgae from Ross Sea (Antarctica) |
title_sort |
ecological, physiological and biomolecular surveys on microalgae from ross sea (antarctica) |
publishDate |
2000 |
url |
http://hdl.handle.net/11577/2467358 |
geographic |
Antarctic Southern Ocean Austral Ross Sea Terra Nova Bay |
geographic_facet |
Antarctic Southern Ocean Austral Ross Sea Terra Nova Bay |
genre |
Antarc* Antarctic Antarctica antartic* Ross Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica antartic* Ross Sea Sea ice Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000089847600023 volume:67 issue:supplement 1 firstpage:147 lastpage:156 numberofpages:10 journal:THE ITALIAN JOURNAL OF ZOOLOGY http://hdl.handle.net/11577/2467358 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0033752508 |
_version_ |
1790600639558975488 |