Yeasts from the Maritime Antarctic: tools for industry and bioremediation
Abstract We isolated 32 yeasts from King George Island, which we then identified and characterized. Twenty-six belonged to Basidiomycota among the genera Naganishia , Holtermaniella , Vishniacozyma , Phenoliferia , Mrakia and Cystobasidium , and only six were Ascomycota of the genera Metschnikowia a...
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Cambridge University Press (CUP)
2021
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Online Access: | http://dx.doi.org/10.1017/s0954102021000420 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102021000420 |
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crcambridgeupr:10.1017/s0954102021000420 2024-09-15T17:40:37+00:00 Yeasts from the Maritime Antarctic: tools for industry and bioremediation Bezus, Brenda Garmendia, Gabriela Vero, Silvana Cavalitto, Sebastián Cavello, Ivana Alejandra Fondo para la Investigación Científica y Tecnológica 2021 http://dx.doi.org/10.1017/s0954102021000420 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102021000420 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 34, issue 1, page 16-28 ISSN 0954-1020 1365-2079 journal-article 2021 crcambridgeupr https://doi.org/10.1017/s0954102021000420 2024-07-31T04:03:59Z Abstract We isolated 32 yeasts from King George Island, which we then identified and characterized. Twenty-six belonged to Basidiomycota among the genera Naganishia , Holtermaniella , Vishniacozyma , Phenoliferia , Mrakia and Cystobasidium , and only six were Ascomycota of the genera Metschnikowia and Debaryomyces . Thirteen were psychrophiles, while 19 were psychrotolerant. Certain isolates exhibited a high tolerance to NaCl (3.5 M), while most tolerated Ni 2+ , Zn 2+ and Li + . Cu 2+ and Cd 2+ , however, inhibited the growth of most of the isolates. We assessed a bioprospecting of extracellular enzymes and their ability to biodegrade or bioaccumulate textile dyes. β-Glucosidases (59%) and esterases (53%) were the main extracellular enzymes detected. A minor proportion of the yeasts produced pectinases and xylanases; only psychrophiles produced proteases. Vishniacozyma , Naganishia , Phenoliferia and Mrakia were the richest genera in terms of enzyme production. Greater than 70% of the isolates decolourized solid medium supplemented with various dyes at 4°C and 20°C. Isolates belonging to the genera Vishniacozyma , Cystobasidium , Mrakia and Phenoliferia seem to have potential for textile dye bio-decolourization. The results demonstrated that yeasts collected from the Maritime Antarctic are a potential source of new enzymes of biotechnological interest, and that certain isolates could potentially be considered in the design of textile wastewater decolourizations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science King George Island Cambridge University Press Antarctic Science 1 13 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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English |
description |
Abstract We isolated 32 yeasts from King George Island, which we then identified and characterized. Twenty-six belonged to Basidiomycota among the genera Naganishia , Holtermaniella , Vishniacozyma , Phenoliferia , Mrakia and Cystobasidium , and only six were Ascomycota of the genera Metschnikowia and Debaryomyces . Thirteen were psychrophiles, while 19 were psychrotolerant. Certain isolates exhibited a high tolerance to NaCl (3.5 M), while most tolerated Ni 2+ , Zn 2+ and Li + . Cu 2+ and Cd 2+ , however, inhibited the growth of most of the isolates. We assessed a bioprospecting of extracellular enzymes and their ability to biodegrade or bioaccumulate textile dyes. β-Glucosidases (59%) and esterases (53%) were the main extracellular enzymes detected. A minor proportion of the yeasts produced pectinases and xylanases; only psychrophiles produced proteases. Vishniacozyma , Naganishia , Phenoliferia and Mrakia were the richest genera in terms of enzyme production. Greater than 70% of the isolates decolourized solid medium supplemented with various dyes at 4°C and 20°C. Isolates belonging to the genera Vishniacozyma , Cystobasidium , Mrakia and Phenoliferia seem to have potential for textile dye bio-decolourization. The results demonstrated that yeasts collected from the Maritime Antarctic are a potential source of new enzymes of biotechnological interest, and that certain isolates could potentially be considered in the design of textile wastewater decolourizations. |
author2 |
Fondo para la Investigación Científica y Tecnológica |
format |
Article in Journal/Newspaper |
author |
Bezus, Brenda Garmendia, Gabriela Vero, Silvana Cavalitto, Sebastián Cavello, Ivana Alejandra |
spellingShingle |
Bezus, Brenda Garmendia, Gabriela Vero, Silvana Cavalitto, Sebastián Cavello, Ivana Alejandra Yeasts from the Maritime Antarctic: tools for industry and bioremediation |
author_facet |
Bezus, Brenda Garmendia, Gabriela Vero, Silvana Cavalitto, Sebastián Cavello, Ivana Alejandra |
author_sort |
Bezus, Brenda |
title |
Yeasts from the Maritime Antarctic: tools for industry and bioremediation |
title_short |
Yeasts from the Maritime Antarctic: tools for industry and bioremediation |
title_full |
Yeasts from the Maritime Antarctic: tools for industry and bioremediation |
title_fullStr |
Yeasts from the Maritime Antarctic: tools for industry and bioremediation |
title_full_unstemmed |
Yeasts from the Maritime Antarctic: tools for industry and bioremediation |
title_sort |
yeasts from the maritime antarctic: tools for industry and bioremediation |
publisher |
Cambridge University Press (CUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1017/s0954102021000420 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102021000420 |
genre |
Antarc* Antarctic Antarctic Science King George Island |
genre_facet |
Antarc* Antarctic Antarctic Science King George Island |
op_source |
Antarctic Science volume 34, issue 1, page 16-28 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102021000420 |
container_title |
Antarctic Science |
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1 |
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13 |
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1810486640803577856 |