Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic Peninsula
Abstract Despite the extent use of geochemical tracers to track warm air mass origin reaching the Antarctic continent, we present here evidences that microorganisms being transported by the atmosphere and deposited in fresh snow layers of Antarctic ice sheets do act as tracers of air mass advection...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2023-10-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000601104&lng=en&tlng=en |
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| author | MARCIO CATALDO HEITOR EVANGELISTA JOSÉ AUGUSTO A. PEREIRA ÁLVARO LUIZ BERTHO VIVIAN PELLIZARI EMANUELE KUHN MARCELO SAMPAIO KENYA D. DA CUNHA ALEXANDRE S. ALENCAR DAFNE ANJOS CESAR AMARAL |
| author_facet | MARCIO CATALDO HEITOR EVANGELISTA JOSÉ AUGUSTO A. PEREIRA ÁLVARO LUIZ BERTHO VIVIAN PELLIZARI EMANUELE KUHN MARCELO SAMPAIO KENYA D. DA CUNHA ALEXANDRE S. ALENCAR DAFNE ANJOS CESAR AMARAL |
| author_sort | MARCIO CATALDO |
| collection | DOAJ |
| description | Abstract Despite the extent use of geochemical tracers to track warm air mass origin reaching the Antarctic continent, we present here evidences that microorganisms being transported by the atmosphere and deposited in fresh snow layers of Antarctic ice sheets do act as tracers of air mass advection from the Southern Patagonia region to Northern Antarctic Peninsula. We combined atmospheric circulation data with microorganism content in snow/firn samples collected in two sites of the Antarctic Peninsula (King George Island/Wanda glacier and Detroit Plateau) by using flow cytometer quantification. In addition, we cultivated, isolated and submitted samples to molecular sequencing to precise species classification. Viable gram-positive bacteria were found and recovered in different snow/firn layers samples, among dead and living cells, their number concentration was compared to northern wind component, stable isotopes of oxygen, d18O, and the concentration of crustal elements (Fe, Ti and Ca). Use of satellite images combined with air mass back-trajectory analysis obtained from the NOAA/ HYSPLIT model corroborated the results. |
| first_indexed | 2024-03-11T19:05:04Z |
| format | Article |
| id | doaj.art-2d9b86dd313a471d8c1e5234cda5dea3 |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-03-11T19:05:04Z |
| publishDate | 2023-10-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-2d9b86dd313a471d8c1e5234cda5dea32023-10-10T07:43:26ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902023-10-0195suppl 310.1590/0001-3765202320210807Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic PeninsulaMARCIO CATALDOhttps://orcid.org/0000-0003-2917-439XHEITOR EVANGELISTAhttps://orcid.org/0000-0001-9832-1141JOSÉ AUGUSTO A. PEREIRAhttps://orcid.org/0000-0003-0530-0697ÁLVARO LUIZ BERTHOhttps://orcid.org/0000-0002-0962-1925VIVIAN PELLIZARIhttps://orcid.org/0000-0003-2757-6352EMANUELE KUHNhttps://orcid.org/0000-0003-0633-6608MARCELO SAMPAIOhttps://orcid.org/0000-0001-9506-0281KENYA D. DA CUNHAALEXANDRE S. ALENCARhttps://orcid.org/0000-0002-8104-1781DAFNE ANJOShttps://orcid.org/0000-0002-0769-2279CESAR AMARALhttps://orcid.org/0000-0002-4314-3517Abstract Despite the extent use of geochemical tracers to track warm air mass origin reaching the Antarctic continent, we present here evidences that microorganisms being transported by the atmosphere and deposited in fresh snow layers of Antarctic ice sheets do act as tracers of air mass advection from the Southern Patagonia region to Northern Antarctic Peninsula. We combined atmospheric circulation data with microorganism content in snow/firn samples collected in two sites of the Antarctic Peninsula (King George Island/Wanda glacier and Detroit Plateau) by using flow cytometer quantification. In addition, we cultivated, isolated and submitted samples to molecular sequencing to precise species classification. Viable gram-positive bacteria were found and recovered in different snow/firn layers samples, among dead and living cells, their number concentration was compared to northern wind component, stable isotopes of oxygen, d18O, and the concentration of crustal elements (Fe, Ti and Ca). Use of satellite images combined with air mass back-trajectory analysis obtained from the NOAA/ HYSPLIT model corroborated the results.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000601104&lng=en&tlng=enextremophilesatmospheric transportAntarcticaatmospheric tracersaerobiology |
| spellingShingle | MARCIO CATALDO HEITOR EVANGELISTA JOSÉ AUGUSTO A. PEREIRA ÁLVARO LUIZ BERTHO VIVIAN PELLIZARI EMANUELE KUHN MARCELO SAMPAIO KENYA D. DA CUNHA ALEXANDRE S. ALENCAR DAFNE ANJOS CESAR AMARAL Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic Peninsula Anais da Academia Brasileira de Ciências extremophiles atmospheric transport Antarctica atmospheric tracers aerobiology |
| title | Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic Peninsula |
| title_full | Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic Peninsula |
| title_fullStr | Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic Peninsula |
| title_full_unstemmed | Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic Peninsula |
| title_short | Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic Peninsula |
| title_sort | aerobiology in high latitudes evidence of bacteria acting as tracer of warm air mass advection reaching northern antarctic peninsula |
| topic | extremophiles atmospheric transport Antarctica atmospheric tracers aerobiology |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000601104&lng=en&tlng=en |
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