Freshwater mineral nitrogen and essential elements in autotrophs in James Ross Island, West Antarctica

Coufalík, Pavel; Procházková, Petra; Zvěřina, Ondřej; Trnková, Kateřina; Skácelová, Kateřina; Nývlt, Daniel; Komárek, Josef

doi:10.1515/popore-2016-0025

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…It lies at an altitude of 250 m ASL. During the summer months, the lake partially freezes and is supplied by snow cover on the slopes of Johnson Mesa (Skácelová et al 2013;Coufalík et al 2016). The lake is surrounded by a rock wall in the southwest and dammed by a moraine in the northeast.…”

Section: Phormidium and Muddy Lakesmentioning

confidence: 99%

Structure and diversity of archaea and methanogenic archaea in sediments of selected freshwater lakes, Antarctic Peninsula

Buriánková

Rulı́k

Bábíková

et al. 2022

Preprint

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This research is the first study focusing to explore the diversity of Archaea and methanogens in sediments of 19 selected lakes nearby the Czech polar station on James Ross Island (JRI), Antarctica. The 16S rRNA gene sequencing provided a general view of a diversity of archaeal members and the mcrA gene sequencing has offered deeper insight into the taxonomical diversity of methanogens. Archaea rarely exceeded 1% of the total prokaryotic community. Genera Methanothrix and Methanosarcina were found as the predominating methanogenic members in the lake samples. For the first time in Antarctica, sequences of representatives belonging to Methanothermobacter sp. and Methanomassiliicoccales, and a high proportion of sequences belonging to Methanoperedens-like archaea, methanotrophs that couples anaerobic methane oxidation to denitrification, were recorded. The presence of the genus Methanobacterium has been also captured for the first time to a such large extent. Individual lakes from one area shared much higher similarity in their methanogenic diversity with the lakes from another area rather than with the lakes within the same area, suggesting that a lake location will be not the main factor influencing the diversity of the methanogens. Our research unambiguously provides evidence that the lakes of the JRI and surrounding islands are a potential source of new archaeal species.

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Section: Phormidium and Muddy Lakesmentioning

confidence: 99%

Structure and diversity of archaea and methanogenic archaea in sediments of selected freshwater lakes, Antarctic Peninsula

Buriánková

Rulı́k

Bábíková

et al. 2022

Preprint

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Toxic metals in cyanobacterial mat of Big Lachman Lake, James Ross Island, Antarctica

Coufalík,

Vašinka,

Krmíček

et al. 2023

Environ Monit Assess

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Chemical weathering in Antarctica: an example of igneous rock particles in Big Lachman Lake sediments, James Ross Island

et al. 2020

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Freshwater mineral nitrogen and essential elements in autotrophs in James Ross Island, West Antarctica

Abstract: Abstract:The lakes and watercourses are habitats for various communities of cyanobacteria and algae, which are among the few primary producers in Antarctica.

Cited by 5 publications

References 27 publications

Structure and diversity of archaea and methanogenic archaea in sediments of selected freshwater lakes, Antarctic Peninsula

Structure and diversity of archaea and methanogenic archaea in sediments of selected freshwater lakes, Antarctic Peninsula

Toxic metals in cyanobacterial mat of Big Lachman Lake, James Ross Island, Antarctica

Chemical weathering in Antarctica: an example of igneous rock particles in Big Lachman Lake sediments, James Ross Island

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