Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids
We isolated a novel strain of the microalga Tetraedron minimum in Iceland from a terrestrial habitat. During long-term cultivation, a dish culture turned orange, indicating the presence of secondary pigments. Thus, we characterized T. minimum for growth and possible carotenoid production in differen...
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ftpubmed:oai:pubmedcentral.nih.gov:7911234 2023-05-15T16:48:59+02:00 Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids Doppler, Philipp Kornpointner, Christoph Halbwirth, Heidi Remias, Daniel Spadiut, Oliver 2021-01-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7911234/ http://www.ncbi.nlm.nih.gov/pubmed/33573287 https://doi.org/10.3390/life11020107 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7911234/ http://www.ncbi.nlm.nih.gov/pubmed/33573287 http://dx.doi.org/10.3390/life11020107 © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). CC-BY Life (Basel) Article Text 2021 ftpubmed https://doi.org/10.3390/life11020107 2021-03-07T01:57:17Z We isolated a novel strain of the microalga Tetraedron minimum in Iceland from a terrestrial habitat. During long-term cultivation, a dish culture turned orange, indicating the presence of secondary pigments. Thus, we characterized T. minimum for growth and possible carotenoid production in different inorganic media. In a lab-scale photobioreactor, we confirmed that nitrogen starvation in combination with salt stress triggered a secondary carotenoid accumulation. The development of the pigment composition and the antioxidant capacity of the extracts was analyzed throughout the cultivations. The final secondary carotenoid composition was, on average, 61.1% astaxanthin and 38.9% adonixanthin. Moreover, the cells accumulated approx. 83.1% unsaturated fatty acids. This work presents the first report of the formation of secondary carotenoids within the family Hydrodictyaceae (Sphaeropleales, Chlorophyta). Text Iceland PubMed Central (PMC) Life 11 2 107 |
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Article Doppler, Philipp Kornpointner, Christoph Halbwirth, Heidi Remias, Daniel Spadiut, Oliver Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids |
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Article |
description |
We isolated a novel strain of the microalga Tetraedron minimum in Iceland from a terrestrial habitat. During long-term cultivation, a dish culture turned orange, indicating the presence of secondary pigments. Thus, we characterized T. minimum for growth and possible carotenoid production in different inorganic media. In a lab-scale photobioreactor, we confirmed that nitrogen starvation in combination with salt stress triggered a secondary carotenoid accumulation. The development of the pigment composition and the antioxidant capacity of the extracts was analyzed throughout the cultivations. The final secondary carotenoid composition was, on average, 61.1% astaxanthin and 38.9% adonixanthin. Moreover, the cells accumulated approx. 83.1% unsaturated fatty acids. This work presents the first report of the formation of secondary carotenoids within the family Hydrodictyaceae (Sphaeropleales, Chlorophyta). |
format |
Text |
author |
Doppler, Philipp Kornpointner, Christoph Halbwirth, Heidi Remias, Daniel Spadiut, Oliver |
author_facet |
Doppler, Philipp Kornpointner, Christoph Halbwirth, Heidi Remias, Daniel Spadiut, Oliver |
author_sort |
Doppler, Philipp |
title |
Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids |
title_short |
Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids |
title_full |
Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids |
title_fullStr |
Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids |
title_full_unstemmed |
Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids |
title_sort |
tetraedron minimum, first reported member of hydrodictyaceae to accumulate secondary carotenoids |
publisher |
MDPI |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7911234/ http://www.ncbi.nlm.nih.gov/pubmed/33573287 https://doi.org/10.3390/life11020107 |
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Iceland |
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Iceland |
op_source |
Life (Basel) |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7911234/ http://www.ncbi.nlm.nih.gov/pubmed/33573287 http://dx.doi.org/10.3390/life11020107 |
op_rights |
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.3390/life11020107 |
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Life |
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107 |
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1766039060018626560 |