Lea C. Wunder
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View article: Global warming facilitated environmental change effects on CO2 releasing microbes in Antarctic sediments
Global warming facilitated environmental change effects on CO2 releasing microbes in Antarctic sediments Open
Rapid melting of the Western Antarctic Peninsula (WAP) glaciers is a compelling piece of evidence of how climate change affects our planet. This study investigated the impact of global warming-facilitated environmental change on microbial …
View article: Extensive data mining uncovers novel diversity among members of the rare biosphere within the Thermoplasmatota
Extensive data mining uncovers novel diversity among members of the rare biosphere within the Thermoplasmatota Open
Background: Rare species, especially of the marine sedimentary biosphere, have long been overlooked owing to the complexity of sediment microbial communities, their sporadic temporal and patchy spatial abundance and challenges in cultivati…
View article: Manganese reduction and associated microbial communities in Antarctic surface sediments
Manganese reduction and associated microbial communities in Antarctic surface sediments Open
The polar regions are the fastest warming places on earth. Accelerated glacial melting causes increased supply of nutrients such as metal oxides (i.e., iron and manganese oxides) into the surrounding environment, such as the marine sedimen…
View article: Unexpected carbon utilization activity of sulfate-reducing microorganisms in temperate and permanently cold marine sediments
Unexpected carbon utilization activity of sulfate-reducing microorganisms in temperate and permanently cold marine sediments Open
Significant amounts of organic carbon in marine sediments are degraded, coupled with sulfate reduction. However, the actual carbon and energy sources used in situ have not been assigned to each group of diverse sulfate-reducing microorgani…
View article: Multi-omics for studying and understanding polar life
Multi-omics for studying and understanding polar life Open
Polar ecosystems are experiencing amongst the most rapid rates of regional warming on Earth. Here, we discuss ‘omics’ approaches to investigate polar biodiversity, including the current state of the art, future perspectives and recommendat…
View article: Iron and sulfate reduction structure microbial communities in (sub-)Antarctic sediments
Iron and sulfate reduction structure microbial communities in (sub-)Antarctic sediments Open
Permanently cold marine sediments are heavily influenced by increased input of iron as a result of accelerated glacial melt, weathering, and erosion. The impact of such environmental changes on microbial communities in coastal sediments is…
View article: Macroalgae degradation promotes microbial iron reduction via electron shuttling in coastal Antarctic sediments
Macroalgae degradation promotes microbial iron reduction via electron shuttling in coastal Antarctic sediments Open
Colonization of newly ice-free areas by marine benthic organisms intensifies burial of macroalgae detritus in Potter Cove coastal surface sediments (Western Antarctic Peninsula). Thus, fresh and labile macroalgal detritus serves as primary…
View article: Electron Acceptor Availability Shapes Anaerobically Methane Oxidizing Archaea (ANME) Communities in South Georgia Sediments
Electron Acceptor Availability Shapes Anaerobically Methane Oxidizing Archaea (ANME) Communities in South Georgia Sediments Open
Anaerobic methane oxidizing archaea (ANME) mediate anaerobic oxidation of methane (AOM) in marine sediments and are therefore important for controlling atmospheric methane concentrations in the water column and ultimately the atmosphere. N…
View article: Rates and Microbial Players of Iron-Driven Anaerobic Oxidation of Methane in Methanic Marine Sediments
Rates and Microbial Players of Iron-Driven Anaerobic Oxidation of Methane in Methanic Marine Sediments Open
The flux of methane, a potent greenhouse gas, from the seabed is largely controlled by anaerobic oxidation of methane (AOM) coupled to sulfate reduction (S-AOM) in the sulfate methane transition (SMT). S-AOM is estimated to oxidize 90% of …
View article: Pore water and solid phase data of sediment cores from the Helgoland Mud Area, North Sea
Pore water and solid phase data of sediment cores from the Helgoland Mud Area, North Sea Open
Pore water and solid phase concentration in samples collected during RV Heincke expeditions HE406, HE443 and, HE461
View article: Pore water geochemistry of sediment core HE461/04-4
Pore water geochemistry of sediment core HE461/04-4 Open
Methods:\n\nSampling\nRhizon technique (Seeberg-Elverfeldt et al. 2005).\n\nSO42-\nIon chromatography (Metrohm Compact IC 761 )\n\nFe2+\nMeasured using inductively coupled plasma-optical emission spectrometry (Iris Intrepid II ICP-OES).\n\…