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Article

Surface Bacterioplankton Community Structure Crossing the Antarctic Circumpolar Current Fronts

by
Angelina Cordone
1,*,†,
Matteo Selci
1,†,
Bernardo Barosa
1,
Alessia Bastianoni
1,
Deborah Bastoni
1,
Francesco Bolinesi
1,
Rosaria Capuozzo
1,
Martina Cascone
1,
Monica Correggia
1,
Davide Corso
1,
Luciano Di Iorio
1,
Cristina Misic
2,
Francesco Montemagno
1,
Annarita Ricciardelli
1,
Maria Saggiomo
3,
Luca Tonietti
1,4,
Olga Mangoni
1,5 and
Donato Giovannelli
1,6,7,8,9
1
Department of Biology, University of Naples Federico II, 80126 Naples, Italy
2
Dipartimento di Scienze della Terra, Dell’Ambiente e della Vita, Universitá di Genova, 16132 Genova, Italy
3
Stazione Zoologica Anton Dohrn, 80121 Naples, Italy
4
Department of Science and Technology, University of Naples Parthenope, 80143 Naples, Italy
5
Consorzio Nazionale Interuniversitario delle Scienze del Mare (CoNISMa), 00196 Rome, Italy
6
Institute of Marine Biological Resources and Biotechnologies, National Research Council, 60125 Ancona, Italy
7
Earth-Life Science Institute, Tokyo Institute for Technology, Tokyo 152-8552, Japan
8
Department of Marine and Coastal Science, Rutgers University, New Brunswick, NJ 08901, USA
9
Marine Chemistry and Geology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02540, USA
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Microorganisms 2023, 11(3), 702; https://doi.org/10.3390/microorganisms11030702
Submission received: 31 January 2023 / Revised: 28 February 2023 / Accepted: 7 March 2023 / Published: 9 March 2023
(This article belongs to the Special Issue Low Temperature Microbiology Meets the Global Challenges of Our Time)

Abstract

The Antarctic Circumpolar Current (ACC) is the major current in the Southern Ocean, isolating the warm stratified subtropical waters from the more homogeneous cold polar waters. The ACC flows from west to east around Antarctica and generates an overturning circulation by fostering deep-cold water upwelling and the formation of new water masses, thus affecting the Earth’s heat balance and the global distribution of carbon. The ACC is characterized by several water mass boundaries or fronts, known as the Subtropical Front (STF), Subantarctic Front (SAF), Polar Front (PF), and South Antarctic Circumpolar Current Front (SACCF), identified by typical physical and chemical properties. While the physical characteristics of these fronts have been characterized, there is still poor information regarding the microbial diversity of this area. Here we present the surface water bacterioplankton community structure based on 16S rRNA sequencing from 13 stations sampled in 2017 between New Zealand to the Ross Sea crossing the ACC Fronts. Our results show a distinct succession in the dominant bacterial phylotypes present in the different water masses and suggest a strong role of sea surface temperatures and the availability of Carbon and Nitrogen in controlling community composition. This work represents an important baseline for future studies on the response of Southern Ocean epipelagic microbial communities to climate change.
Keywords: bacterioplankton diversity; Southern Ocean; 16S rRNA sequencing; primary productivity bacterioplankton diversity; Southern Ocean; 16S rRNA sequencing; primary productivity

Share and Cite

MDPI and ACS Style

Cordone, A.; Selci, M.; Barosa, B.; Bastianoni, A.; Bastoni, D.; Bolinesi, F.; Capuozzo, R.; Cascone, M.; Correggia, M.; Corso, D.; et al. Surface Bacterioplankton Community Structure Crossing the Antarctic Circumpolar Current Fronts. Microorganisms 2023, 11, 702. https://doi.org/10.3390/microorganisms11030702

AMA Style

Cordone A, Selci M, Barosa B, Bastianoni A, Bastoni D, Bolinesi F, Capuozzo R, Cascone M, Correggia M, Corso D, et al. Surface Bacterioplankton Community Structure Crossing the Antarctic Circumpolar Current Fronts. Microorganisms. 2023; 11(3):702. https://doi.org/10.3390/microorganisms11030702

Chicago/Turabian Style

Cordone, Angelina, Matteo Selci, Bernardo Barosa, Alessia Bastianoni, Deborah Bastoni, Francesco Bolinesi, Rosaria Capuozzo, Martina Cascone, Monica Correggia, Davide Corso, and et al. 2023. "Surface Bacterioplankton Community Structure Crossing the Antarctic Circumpolar Current Fronts" Microorganisms 11, no. 3: 702. https://doi.org/10.3390/microorganisms11030702

APA Style

Cordone, A., Selci, M., Barosa, B., Bastianoni, A., Bastoni, D., Bolinesi, F., Capuozzo, R., Cascone, M., Correggia, M., Corso, D., Di Iorio, L., Misic, C., Montemagno, F., Ricciardelli, A., Saggiomo, M., Tonietti, L., Mangoni, O., & Giovannelli, D. (2023). Surface Bacterioplankton Community Structure Crossing the Antarctic Circumpolar Current Fronts. Microorganisms, 11(3), 702. https://doi.org/10.3390/microorganisms11030702

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