Data_Sheet_1_Revealing the Characteristics of the Antarctic Snow Alga Chlorominima collina gen. et sp. nov. Through Taxonomy, Physiology, and Transcriptomics.docx
Snow algae play crucial roles in cold ecosystems, however, many aspects related to their biology, adaptations and especially their diversity are not well known. To improve the identification of snow algae from colored snow, in the present study we used a polyphasic approach to describe a new Antarct...
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Online Access: | https://doi.org/10.3389/fpls.2021.662298.s001 |
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ftsmithonian:oai:figshare.com:article/14742315 2023-05-15T13:47:39+02:00 Data_Sheet_1_Revealing the Characteristics of the Antarctic Snow Alga Chlorominima collina gen. et sp. nov. Through Taxonomy, Physiology, and Transcriptomics.docx Francisca E. Gálvez (10931562) Mónica Saldarriaga-Córdoba (4620637) Pirjo Huovinen (582334) Andrea X. Silva (10931565) Iván Gómez (582335) 2021-06-07T05:44:22Z https://doi.org/10.3389/fpls.2021.662298.s001 unknown https://figshare.com/articles/dataset/Data_Sheet_1_Revealing_the_Characteristics_of_the_Antarctic_Snow_Alga_Chlorominima_collina_gen_et_sp_nov_Through_Taxonomy_Physiology_and_Transcriptomics_docx/14742315 doi:10.3389/fpls.2021.662298.s001 CC BY 4.0 CC-BY Botany Plant Biology Plant Systematics and Taxonomy Plant Cell and Molecular Biology Plant Developmental and Reproductive Biology Plant Pathology Plant Physiology Plant Biology not elsewhere classified Antarctic Chlorominima polyphasic approach psychrophilic snow algae cysts transcriptome Dataset 2021 ftsmithonian https://doi.org/10.3389/fpls.2021.662298.s001 2021-06-13T15:02:05Z Snow algae play crucial roles in cold ecosystems, however, many aspects related to their biology, adaptations and especially their diversity are not well known. To improve the identification of snow algae from colored snow, in the present study we used a polyphasic approach to describe a new Antarctic genus, Chlorominima with the species type Chlorominima collina. This new taxon was isolated of colored snow collected from the Collins Glacier (King George Island) in the Maritime Antarctic region. Microscopy revealed biflagellated ellipsoidal cells with a rounded posterior end, a C-shaped parietal chloroplast without a pyrenoid, eyespot, and discrete papillae. Several of these characteristics are typical of the genus Chloromonas, but the new isolate differs from the described species of this genus by the unusual small size of the cells, the presence of several vacuoles, the position of the nucleus and the shape of the chloroplast. Molecular analyzes confirm that the isolated alga does not belong to Chloromonas and therefore forms an independent lineage, which is closely related to other unidentified Antarctic and Arctic strains, forming a polar subclade in the Stephanosphaerinia phylogroup within the Chlamydomonadales. Secondary structure comparisons of the ITS2 rDNA marker support the idea that new strain is a distinct taxon within of Caudivolvoxa. Physiological experiments revealed psychrophilic characteristics, which are typical of true snow algae. This status was confirmed by the partial transcriptome obtained at 2°C, in which various cold-responsive and cryoprotective genes were identified. This study explores the systematics, cold acclimatization strategies and their implications for the Antarctic snow flora. Dataset Antarc* Antarctic Arctic Collins Glacier King George Island Unknown Arctic Antarctic The Antarctic King George Island Collins Glacier ENVELOPE(65.308,65.308,-73.829,-73.829) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Botany Plant Biology Plant Systematics and Taxonomy Plant Cell and Molecular Biology Plant Developmental and Reproductive Biology Plant Pathology Plant Physiology Plant Biology not elsewhere classified Antarctic Chlorominima polyphasic approach psychrophilic snow algae cysts transcriptome |
spellingShingle |
Botany Plant Biology Plant Systematics and Taxonomy Plant Cell and Molecular Biology Plant Developmental and Reproductive Biology Plant Pathology Plant Physiology Plant Biology not elsewhere classified Antarctic Chlorominima polyphasic approach psychrophilic snow algae cysts transcriptome Francisca E. Gálvez (10931562) Mónica Saldarriaga-Córdoba (4620637) Pirjo Huovinen (582334) Andrea X. Silva (10931565) Iván Gómez (582335) Data_Sheet_1_Revealing the Characteristics of the Antarctic Snow Alga Chlorominima collina gen. et sp. nov. Through Taxonomy, Physiology, and Transcriptomics.docx |
topic_facet |
Botany Plant Biology Plant Systematics and Taxonomy Plant Cell and Molecular Biology Plant Developmental and Reproductive Biology Plant Pathology Plant Physiology Plant Biology not elsewhere classified Antarctic Chlorominima polyphasic approach psychrophilic snow algae cysts transcriptome |
description |
Snow algae play crucial roles in cold ecosystems, however, many aspects related to their biology, adaptations and especially their diversity are not well known. To improve the identification of snow algae from colored snow, in the present study we used a polyphasic approach to describe a new Antarctic genus, Chlorominima with the species type Chlorominima collina. This new taxon was isolated of colored snow collected from the Collins Glacier (King George Island) in the Maritime Antarctic region. Microscopy revealed biflagellated ellipsoidal cells with a rounded posterior end, a C-shaped parietal chloroplast without a pyrenoid, eyespot, and discrete papillae. Several of these characteristics are typical of the genus Chloromonas, but the new isolate differs from the described species of this genus by the unusual small size of the cells, the presence of several vacuoles, the position of the nucleus and the shape of the chloroplast. Molecular analyzes confirm that the isolated alga does not belong to Chloromonas and therefore forms an independent lineage, which is closely related to other unidentified Antarctic and Arctic strains, forming a polar subclade in the Stephanosphaerinia phylogroup within the Chlamydomonadales. Secondary structure comparisons of the ITS2 rDNA marker support the idea that new strain is a distinct taxon within of Caudivolvoxa. Physiological experiments revealed psychrophilic characteristics, which are typical of true snow algae. This status was confirmed by the partial transcriptome obtained at 2°C, in which various cold-responsive and cryoprotective genes were identified. This study explores the systematics, cold acclimatization strategies and their implications for the Antarctic snow flora. |
format |
Dataset |
author |
Francisca E. Gálvez (10931562) Mónica Saldarriaga-Córdoba (4620637) Pirjo Huovinen (582334) Andrea X. Silva (10931565) Iván Gómez (582335) |
author_facet |
Francisca E. Gálvez (10931562) Mónica Saldarriaga-Córdoba (4620637) Pirjo Huovinen (582334) Andrea X. Silva (10931565) Iván Gómez (582335) |
author_sort |
Francisca E. Gálvez (10931562) |
title |
Data_Sheet_1_Revealing the Characteristics of the Antarctic Snow Alga Chlorominima collina gen. et sp. nov. Through Taxonomy, Physiology, and Transcriptomics.docx |
title_short |
Data_Sheet_1_Revealing the Characteristics of the Antarctic Snow Alga Chlorominima collina gen. et sp. nov. Through Taxonomy, Physiology, and Transcriptomics.docx |
title_full |
Data_Sheet_1_Revealing the Characteristics of the Antarctic Snow Alga Chlorominima collina gen. et sp. nov. Through Taxonomy, Physiology, and Transcriptomics.docx |
title_fullStr |
Data_Sheet_1_Revealing the Characteristics of the Antarctic Snow Alga Chlorominima collina gen. et sp. nov. Through Taxonomy, Physiology, and Transcriptomics.docx |
title_full_unstemmed |
Data_Sheet_1_Revealing the Characteristics of the Antarctic Snow Alga Chlorominima collina gen. et sp. nov. Through Taxonomy, Physiology, and Transcriptomics.docx |
title_sort |
data_sheet_1_revealing the characteristics of the antarctic snow alga chlorominima collina gen. et sp. nov. through taxonomy, physiology, and transcriptomics.docx |
publishDate |
2021 |
url |
https://doi.org/10.3389/fpls.2021.662298.s001 |
long_lat |
ENVELOPE(65.308,65.308,-73.829,-73.829) |
geographic |
Arctic Antarctic The Antarctic King George Island Collins Glacier |
geographic_facet |
Arctic Antarctic The Antarctic King George Island Collins Glacier |
genre |
Antarc* Antarctic Arctic Collins Glacier King George Island |
genre_facet |
Antarc* Antarctic Arctic Collins Glacier King George Island |
op_relation |
https://figshare.com/articles/dataset/Data_Sheet_1_Revealing_the_Characteristics_of_the_Antarctic_Snow_Alga_Chlorominima_collina_gen_et_sp_nov_Through_Taxonomy_Physiology_and_Transcriptomics_docx/14742315 doi:10.3389/fpls.2021.662298.s001 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fpls.2021.662298.s001 |
_version_ |
1766247602767003648 |