Local Environmental Conditions Promote High Turnover Diversity of Benthic Deep-Sea Fungi in the Ross Sea (Antarctica)
Fungi are a ubiquitous component of marine systems, but their quantitative relevance, biodiversity and ecological role in benthic deep-sea ecosystems remain largely unexplored. In this study, we investigated fungal abundance, diversity and assemblage composition in two benthic deep-sea sites of the...
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ftmdpi:oai:mdpi.com:/2309-608X/8/1/65/ 2023-08-20T04:00:29+02:00 Local Environmental Conditions Promote High Turnover Diversity of Benthic Deep-Sea Fungi in the Ross Sea (Antarctica) Giulio Barone Cinzia Corinaldesi Eugenio Rastelli Michael Tangherlini Stefano Varrella Roberto Danovaro Antonio Dell’Anno agris 2022-01-08 application/pdf https://doi.org/10.3390/jof8010065 EN eng Multidisciplinary Digital Publishing Institute Environmental and Ecological Interactions of Fungi https://dx.doi.org/10.3390/jof8010065 https://creativecommons.org/licenses/by/4.0/ Journal of Fungi; Volume 8; Issue 1; Pages: 65 deep-sea sediments fungal diversity trophic conditions Antarctica Ross Sea Text 2022 ftmdpi https://doi.org/10.3390/jof8010065 2023-08-01T03:46:55Z Fungi are a ubiquitous component of marine systems, but their quantitative relevance, biodiversity and ecological role in benthic deep-sea ecosystems remain largely unexplored. In this study, we investigated fungal abundance, diversity and assemblage composition in two benthic deep-sea sites of the Ross Sea (Southern Ocean, Antarctica), characterized by different environmental conditions (i.e., temperature, salinity, trophic availability). Our results indicate that fungal abundance (estimated as the number of 18S rDNA copies g−1) varied by almost one order of magnitude between the two benthic sites, consistently with changes in sediment characteristics and trophic availability. The highest fungal richness (in terms of Amplicon Sequence Variants−ASVs) was encountered in the sediments characterized by the highest organic matter content, indicating potential control of trophic availability on fungal diversity. The composition of fungal assemblages was highly diverse between sites and within each site (similarity less than 10%), suggesting that differences in environmental and ecological characteristics occurring even at a small spatial scale can promote high turnover diversity. Overall, this study provides new insights on the factors influencing the abundance and diversity of benthic deep-sea fungi inhabiting the Ross Sea, and also paves the way for a better understanding of the potential responses of benthic deep-sea fungi inhabiting Antarctic ecosystems in light of current and future climate changes. Text Antarc* Antarctic Antarctica Ross Sea Southern Ocean MDPI Open Access Publishing Antarctic Ross Sea Southern Ocean Journal of Fungi 8 1 65 |
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Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
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English |
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deep-sea sediments fungal diversity trophic conditions Antarctica Ross Sea |
spellingShingle |
deep-sea sediments fungal diversity trophic conditions Antarctica Ross Sea Giulio Barone Cinzia Corinaldesi Eugenio Rastelli Michael Tangherlini Stefano Varrella Roberto Danovaro Antonio Dell’Anno Local Environmental Conditions Promote High Turnover Diversity of Benthic Deep-Sea Fungi in the Ross Sea (Antarctica) |
topic_facet |
deep-sea sediments fungal diversity trophic conditions Antarctica Ross Sea |
description |
Fungi are a ubiquitous component of marine systems, but their quantitative relevance, biodiversity and ecological role in benthic deep-sea ecosystems remain largely unexplored. In this study, we investigated fungal abundance, diversity and assemblage composition in two benthic deep-sea sites of the Ross Sea (Southern Ocean, Antarctica), characterized by different environmental conditions (i.e., temperature, salinity, trophic availability). Our results indicate that fungal abundance (estimated as the number of 18S rDNA copies g−1) varied by almost one order of magnitude between the two benthic sites, consistently with changes in sediment characteristics and trophic availability. The highest fungal richness (in terms of Amplicon Sequence Variants−ASVs) was encountered in the sediments characterized by the highest organic matter content, indicating potential control of trophic availability on fungal diversity. The composition of fungal assemblages was highly diverse between sites and within each site (similarity less than 10%), suggesting that differences in environmental and ecological characteristics occurring even at a small spatial scale can promote high turnover diversity. Overall, this study provides new insights on the factors influencing the abundance and diversity of benthic deep-sea fungi inhabiting the Ross Sea, and also paves the way for a better understanding of the potential responses of benthic deep-sea fungi inhabiting Antarctic ecosystems in light of current and future climate changes. |
format |
Text |
author |
Giulio Barone Cinzia Corinaldesi Eugenio Rastelli Michael Tangherlini Stefano Varrella Roberto Danovaro Antonio Dell’Anno |
author_facet |
Giulio Barone Cinzia Corinaldesi Eugenio Rastelli Michael Tangherlini Stefano Varrella Roberto Danovaro Antonio Dell’Anno |
author_sort |
Giulio Barone |
title |
Local Environmental Conditions Promote High Turnover Diversity of Benthic Deep-Sea Fungi in the Ross Sea (Antarctica) |
title_short |
Local Environmental Conditions Promote High Turnover Diversity of Benthic Deep-Sea Fungi in the Ross Sea (Antarctica) |
title_full |
Local Environmental Conditions Promote High Turnover Diversity of Benthic Deep-Sea Fungi in the Ross Sea (Antarctica) |
title_fullStr |
Local Environmental Conditions Promote High Turnover Diversity of Benthic Deep-Sea Fungi in the Ross Sea (Antarctica) |
title_full_unstemmed |
Local Environmental Conditions Promote High Turnover Diversity of Benthic Deep-Sea Fungi in the Ross Sea (Antarctica) |
title_sort |
local environmental conditions promote high turnover diversity of benthic deep-sea fungi in the ross sea (antarctica) |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/jof8010065 |
op_coverage |
agris |
geographic |
Antarctic Ross Sea Southern Ocean |
geographic_facet |
Antarctic Ross Sea Southern Ocean |
genre |
Antarc* Antarctic Antarctica Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea Southern Ocean |
op_source |
Journal of Fungi; Volume 8; Issue 1; Pages: 65 |
op_relation |
Environmental and Ecological Interactions of Fungi https://dx.doi.org/10.3390/jof8010065 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/jof8010065 |
container_title |
Journal of Fungi |
container_volume |
8 |
container_issue |
1 |
container_start_page |
65 |
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1774718489435570176 |