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Seasonal dynamics i...
Seasonal dynamics in picocyanobacterial abundance and clade composition at coastal and offshore stations in the Baltic Sea
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- Alegria Zufia, Javier, Ph.D. 1992- (författare)
- Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Ctr Ecol & Evolut Microbial Model Syst EEMiS,Linnaeus University, Kalmar, Sweden
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- Legrand, Catherine, Professor, 1965- (författare)
- Högskolan i Halmstad,Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Vatten,Halmstad University, Sweden,Ctr Ecol & Evolut Microbial Model Syst EEMiS,Akademin för företagande, innovation och hållbarhet,Linnaeus University, Kalmar, Sweden
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- Farnelid, Hanna, 1983- (författare)
- Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Vatten,Ctr Ecol & Evolut Microbial Model Syst EEMiS,Linnaeus University, Kalmar, Sweden
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(creator_code:org_t)
- 2022-08-22
- 2022
- Engelska.
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Ingår i: Scientific Reports. - London : Nature Publishing Group. - 2045-2322. ; 12:1
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Picocyanobacteria (< 2 um in diameter) are significant contributors to total phytoplankton biomass. Due to the high diversity within this group, their seasonal dynamics and relationship with environmental parameters, especially in brackish waters, are largely unknown. In this study, the abundance and community composition of phycoerythrin rich picocyanobacteria (PE-SYN) and phycocyanin rich picocyanobacteria (PC-SYN) were monitored at a coastal (K-station) and at an offshore station (LMO; similar to 10 km from land) in the Baltic Sea over three years (2018-2020). Cell abundances of picocyanobacteria correlated positively to temperature and negatively to nitrate (NO3) concentration. While PE-SYN abundance correlated to the presence of nitrogen fixers, PC-SYN abundance was linked to stratification/shallow waters. The picocyanobacterial targeted amplicon sequencing revealed an unprecedented diversity of 2169 picocyanobacterial amplicons sequence variants (ASVs). A unique assemblage of distinct picocyanobacterial clades across seasons was identified. Clade A/B dominated the picocyanobacterial community, except during summer when low NO3, high phosphate (PO4) concentrations and warm temperatures promoted S5.2 dominance. This study, providing multiyear data, links picocyanobacterial populations to environmental parameters. The difference in the response of the two functional groups and clades underscore the need for further high-resolution studies to understand their role in the ecosystem.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Nyckelord
- Ecology
- Ekologi
- Microbiology
- Mikrobiologi
- Akvatisk ekologi
- Mikrobiologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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