Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential?
We assessed the potentially pathogenic fungi in Antarctic permafrost and the overlying active layer on King George, Robert, Livingston and Deception Islands in the South Shetland Islands archipelago, maritime Antarctica. Permafrost and active layer sub-samples were incubated at 37 °C to select fungi...
Published in: | Fungal Biology |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Elsevier
2022
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/531823/ https://www.sciencedirect.com/science/article/pii/S1878614622000368?via%3Dihub |
id |
ftnerc:oai:nora.nerc.ac.uk:531823 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:531823 2023-05-15T13:41:46+02:00 Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? da Silva, Thamar Holanda Gomes, Eldon Carlos Queres Gonçalves, Vívian Nicolau da Costa, Marliete Carvalho Valério, Aline Dias Santos, Daniel de Assis Johann, Susana Convey, Peter Rosa, Carlos Augusto Rosa, Luiz Henrique 2022-08 http://nora.nerc.ac.uk/id/eprint/531823/ https://www.sciencedirect.com/science/article/pii/S1878614622000368?via%3Dihub unknown Elsevier da Silva, Thamar Holanda; Gomes, Eldon Carlos Queres; Gonçalves, Vívian Nicolau; da Costa, Marliete Carvalho; Valério, Aline Dias; Santos, Daniel de Assis; Johann, Susana; Convey, Peter orcid:0000-0001-8497-9903 Rosa, Carlos Augusto; Rosa, Luiz Henrique. 2022 Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? Fungal Biology, 126 (8). 488-497. https://doi.org/10.1016/j.funbio.2022.04.003 <https://doi.org/10.1016/j.funbio.2022.04.003> Publication - Article PeerReviewed 2022 ftnerc 2023-02-04T19:52:55Z We assessed the potentially pathogenic fungi in Antarctic permafrost and the overlying active layer on King George, Robert, Livingston and Deception Islands in the South Shetland Islands archipelago, maritime Antarctica. Permafrost and active layer sub-samples were incubated at 37 °C to select fungi able to growth inside the human body. A total 67 fungal isolates were obtained, 27 from the permafrost and 40 from the active layer. These represented 18 taxa of the genera Alternaria, Aspergillus, Curvularia, Penicillium, Rhodotorula and Talaromyces. The majority of fungi detected occurred exclusively either in the permafrost or the active layer at each site. Only Aspergillus thermomutatus, Penicillium cf. chrysogenum and Rhodotorula cf. mucilaginosa in both permafrost and active layer samples at the same site. The yeast R. cf. mucilaginosa was recovered from both in at least two sites. The genus Penicillium was the most abundant and widely distributed genus in both permafrost and active layer samples across the sites sampled. All fungal isolates were screened using enzymatic, pH and antifungal assays to identify their virulence potential. Aspergillus hiratsukae, A. thermomutatus and R. cf. mucilaginosa, known human opportunistic fungi, were identified, displayed phospholipase, esterase, proteinase and hemolytic activities. A. thermomutatus, A. hiratsukae and R. cf. mucilaginosa displayed the ability to grow at 40°, 45° and/or 50 °C and resistance to fluconazole and itraconazole; additionally, R. cf. mucilaginosa showed resistance to amphotericin B and viability after 100 d at −80 °C. A. thermomutatus UFMGCB 17415 kill the entire larvae of Tenebrio molitor in six days and R. cf. mucilaginosa UFMGCB 17448 and 17473 in three and four days, respectively. The melting of maritime Antarctica permafrost as a result of climate change may threaten the release wild strains of pathogenic fungi geographically isolated for long time, which may in turn be transported within and beyond Antarctica by different biological and ... Article in Journal/Newspaper Antarc* Antarctic Antarctica permafrost South Shetland Islands Natural Environment Research Council: NERC Open Research Archive Antarctic South Shetland Islands Fungal Biology 126 8 488 497 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
We assessed the potentially pathogenic fungi in Antarctic permafrost and the overlying active layer on King George, Robert, Livingston and Deception Islands in the South Shetland Islands archipelago, maritime Antarctica. Permafrost and active layer sub-samples were incubated at 37 °C to select fungi able to growth inside the human body. A total 67 fungal isolates were obtained, 27 from the permafrost and 40 from the active layer. These represented 18 taxa of the genera Alternaria, Aspergillus, Curvularia, Penicillium, Rhodotorula and Talaromyces. The majority of fungi detected occurred exclusively either in the permafrost or the active layer at each site. Only Aspergillus thermomutatus, Penicillium cf. chrysogenum and Rhodotorula cf. mucilaginosa in both permafrost and active layer samples at the same site. The yeast R. cf. mucilaginosa was recovered from both in at least two sites. The genus Penicillium was the most abundant and widely distributed genus in both permafrost and active layer samples across the sites sampled. All fungal isolates were screened using enzymatic, pH and antifungal assays to identify their virulence potential. Aspergillus hiratsukae, A. thermomutatus and R. cf. mucilaginosa, known human opportunistic fungi, were identified, displayed phospholipase, esterase, proteinase and hemolytic activities. A. thermomutatus, A. hiratsukae and R. cf. mucilaginosa displayed the ability to grow at 40°, 45° and/or 50 °C and resistance to fluconazole and itraconazole; additionally, R. cf. mucilaginosa showed resistance to amphotericin B and viability after 100 d at −80 °C. A. thermomutatus UFMGCB 17415 kill the entire larvae of Tenebrio molitor in six days and R. cf. mucilaginosa UFMGCB 17448 and 17473 in three and four days, respectively. The melting of maritime Antarctica permafrost as a result of climate change may threaten the release wild strains of pathogenic fungi geographically isolated for long time, which may in turn be transported within and beyond Antarctica by different biological and ... |
format |
Article in Journal/Newspaper |
author |
da Silva, Thamar Holanda Gomes, Eldon Carlos Queres Gonçalves, Vívian Nicolau da Costa, Marliete Carvalho Valério, Aline Dias Santos, Daniel de Assis Johann, Susana Convey, Peter Rosa, Carlos Augusto Rosa, Luiz Henrique |
spellingShingle |
da Silva, Thamar Holanda Gomes, Eldon Carlos Queres Gonçalves, Vívian Nicolau da Costa, Marliete Carvalho Valério, Aline Dias Santos, Daniel de Assis Johann, Susana Convey, Peter Rosa, Carlos Augusto Rosa, Luiz Henrique Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? |
author_facet |
da Silva, Thamar Holanda Gomes, Eldon Carlos Queres Gonçalves, Vívian Nicolau da Costa, Marliete Carvalho Valério, Aline Dias Santos, Daniel de Assis Johann, Susana Convey, Peter Rosa, Carlos Augusto Rosa, Luiz Henrique |
author_sort |
da Silva, Thamar Holanda |
title |
Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? |
title_short |
Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? |
title_full |
Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? |
title_fullStr |
Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? |
title_full_unstemmed |
Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? |
title_sort |
does maritime antarctic permafrost harbor environmental fungi with pathogenic potential? |
publisher |
Elsevier |
publishDate |
2022 |
url |
http://nora.nerc.ac.uk/id/eprint/531823/ https://www.sciencedirect.com/science/article/pii/S1878614622000368?via%3Dihub |
geographic |
Antarctic South Shetland Islands |
geographic_facet |
Antarctic South Shetland Islands |
genre |
Antarc* Antarctic Antarctica permafrost South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctica permafrost South Shetland Islands |
op_relation |
da Silva, Thamar Holanda; Gomes, Eldon Carlos Queres; Gonçalves, Vívian Nicolau; da Costa, Marliete Carvalho; Valério, Aline Dias; Santos, Daniel de Assis; Johann, Susana; Convey, Peter orcid:0000-0001-8497-9903 Rosa, Carlos Augusto; Rosa, Luiz Henrique. 2022 Does maritime Antarctic permafrost harbor environmental fungi with pathogenic potential? Fungal Biology, 126 (8). 488-497. https://doi.org/10.1016/j.funbio.2022.04.003 <https://doi.org/10.1016/j.funbio.2022.04.003> |
container_title |
Fungal Biology |
container_volume |
126 |
container_issue |
8 |
container_start_page |
488 |
op_container_end_page |
497 |
_version_ |
1766157737702457344 |