Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes
We evaluated the diversity and enzymatic activities of culturable fungi recovered from cotton baits submerged for 2 years in Hennequin Lake, King George Island, and from benthic biofilms in Kroner Lake, Deception Island, South Shetland Islands, maritime Antarctica. A total of 154 fungal isolates wer...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/531948/ https://link.springer.com/article/10.1007/s42770-022-00834-x |
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ftnerc:oai:nora.nerc.ac.uk:531948 2023-05-15T13:41:46+02:00 Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes de Souza, Láuren Machado Drumond Ogaki, Mayara Bapstitucci Teixeira, Elisa Amorim Amâncio de Menezes, Graciéle Cunha Alves Convey, Peter Rosa, Carlos Augusto Rosa, Luiz Henrique 2022-10-24 http://nora.nerc.ac.uk/id/eprint/531948/ https://link.springer.com/article/10.1007/s42770-022-00834-x unknown Springer de Souza, Láuren Machado Drumond; Ogaki, Mayara Bapstitucci; Teixeira, Elisa Amorim Amâncio; de Menezes, Graciéle Cunha Alves; Convey, Peter orcid:0000-0001-8497-9903 Rosa, Carlos Augusto; Rosa, Luiz Henrique. 2022 Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes. Brazilian Journal of Microbiology. 11, pp. https://doi.org/10.1007/s42770-022-00834-x <https://doi.org/10.1007/s42770-022-00834-x> Publication - Article PeerReviewed 2022 ftnerc https://doi.org/10.1007/s42770-022-00834-x 2023-02-04T19:52:59Z We evaluated the diversity and enzymatic activities of culturable fungi recovered from cotton baits submerged for 2 years in Hennequin Lake, King George Island, and from benthic biofilms in Kroner Lake, Deception Island, South Shetland Islands, maritime Antarctica. A total of 154 fungal isolates were obtained, representing in rank abundance the phyla Ascomycota, Basidiomycota and Mortierellomycota. Thelebolus globosus, Goffeauzyma sp., Pseudogymnoascus verrucosus and Metschnikowia australis were the most abundant taxa. The fungal community obtained from the biofilm was more diverse and richer than that recovered from the cotton baits. However, diversity indices suggested that the lakes may harbour further fungal diversity. The capabilities of all cultured fungi to produce the extracellular enzymes cellulase, protease, lipase, agarase, carrageenase, invertase, amylase, esterase, pectinase, inulinase and gelatinase at low temperature were evaluated. All enzymes were detected, but the most widely produced were protease and pectinase. The best enzymatic indices were obtained from Holtermanniella wattica (for invertase, esterase), Goffeauzyma sp. (amylase), Metschnikowia australis (protease), Mrakia blollopis (cellulase, pectinase), Pseudogymnoascus verrucosus (agarase, carrageenase) and Leucosporidium fragarium (inulinase). The detection of multiple enzymes reinforces the ecological role of fungi in nutrient cycling in Antarctic lakes, making nutrients available to the complex aquatic food web. Furthermore, such low-temperature-active enzymes may find application in different biotechnological processes, such as in the textile, pharmaceutical, food, detergent and paper industries, as well as environmental application in pollutant bioremediation processes. Article in Journal/Newspaper Antarc* Antarctic Antarctica Deception Island King George Island South Shetland Islands Natural Environment Research Council: NERC Open Research Archive Antarctic King George Island South Shetland Islands Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Hennequin ENVELOPE(-58.350,-58.350,-62.117,-62.117) Kroner Lake ENVELOPE(-60.575,-60.575,-62.980,-62.980) Brazilian Journal of Microbiology |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
We evaluated the diversity and enzymatic activities of culturable fungi recovered from cotton baits submerged for 2 years in Hennequin Lake, King George Island, and from benthic biofilms in Kroner Lake, Deception Island, South Shetland Islands, maritime Antarctica. A total of 154 fungal isolates were obtained, representing in rank abundance the phyla Ascomycota, Basidiomycota and Mortierellomycota. Thelebolus globosus, Goffeauzyma sp., Pseudogymnoascus verrucosus and Metschnikowia australis were the most abundant taxa. The fungal community obtained from the biofilm was more diverse and richer than that recovered from the cotton baits. However, diversity indices suggested that the lakes may harbour further fungal diversity. The capabilities of all cultured fungi to produce the extracellular enzymes cellulase, protease, lipase, agarase, carrageenase, invertase, amylase, esterase, pectinase, inulinase and gelatinase at low temperature were evaluated. All enzymes were detected, but the most widely produced were protease and pectinase. The best enzymatic indices were obtained from Holtermanniella wattica (for invertase, esterase), Goffeauzyma sp. (amylase), Metschnikowia australis (protease), Mrakia blollopis (cellulase, pectinase), Pseudogymnoascus verrucosus (agarase, carrageenase) and Leucosporidium fragarium (inulinase). The detection of multiple enzymes reinforces the ecological role of fungi in nutrient cycling in Antarctic lakes, making nutrients available to the complex aquatic food web. Furthermore, such low-temperature-active enzymes may find application in different biotechnological processes, such as in the textile, pharmaceutical, food, detergent and paper industries, as well as environmental application in pollutant bioremediation processes. |
format |
Article in Journal/Newspaper |
author |
de Souza, Láuren Machado Drumond Ogaki, Mayara Bapstitucci Teixeira, Elisa Amorim Amâncio de Menezes, Graciéle Cunha Alves Convey, Peter Rosa, Carlos Augusto Rosa, Luiz Henrique |
spellingShingle |
de Souza, Láuren Machado Drumond Ogaki, Mayara Bapstitucci Teixeira, Elisa Amorim Amâncio de Menezes, Graciéle Cunha Alves Convey, Peter Rosa, Carlos Augusto Rosa, Luiz Henrique Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes |
author_facet |
de Souza, Láuren Machado Drumond Ogaki, Mayara Bapstitucci Teixeira, Elisa Amorim Amâncio de Menezes, Graciéle Cunha Alves Convey, Peter Rosa, Carlos Augusto Rosa, Luiz Henrique |
author_sort |
de Souza, Láuren Machado Drumond |
title |
Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes |
title_short |
Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes |
title_full |
Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes |
title_fullStr |
Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes |
title_full_unstemmed |
Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes |
title_sort |
communities of culturable freshwater fungi present in antarctic lakes and detection of their low-temperature-active enzymes |
publisher |
Springer |
publishDate |
2022 |
url |
http://nora.nerc.ac.uk/id/eprint/531948/ https://link.springer.com/article/10.1007/s42770-022-00834-x |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-58.350,-58.350,-62.117,-62.117) ENVELOPE(-60.575,-60.575,-62.980,-62.980) |
geographic |
Antarctic King George Island South Shetland Islands Deception Island Hennequin Kroner Lake |
geographic_facet |
Antarctic King George Island South Shetland Islands Deception Island Hennequin Kroner Lake |
genre |
Antarc* Antarctic Antarctica Deception Island King George Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctica Deception Island King George Island South Shetland Islands |
op_relation |
de Souza, Láuren Machado Drumond; Ogaki, Mayara Bapstitucci; Teixeira, Elisa Amorim Amâncio; de Menezes, Graciéle Cunha Alves; Convey, Peter orcid:0000-0001-8497-9903 Rosa, Carlos Augusto; Rosa, Luiz Henrique. 2022 Communities of culturable freshwater fungi present in Antarctic lakes and detection of their low-temperature-active enzymes. Brazilian Journal of Microbiology. 11, pp. https://doi.org/10.1007/s42770-022-00834-x <https://doi.org/10.1007/s42770-022-00834-x> |
op_doi |
https://doi.org/10.1007/s42770-022-00834-x |
container_title |
Brazilian Journal of Microbiology |
_version_ |
1766157770642423808 |