Anoxic and iron-rich (ferruginous) conditions prevailed in the ocean under the low-oxygen
atmosphere that occurred through most of the Archean Eon. While euxinic conditions (ie …

Photoferrotrophy, the process by which inorganic carbon is fixed into organic matter using
light as an energy source and reduced iron [Fe (II)] as an electron donor, has been proposed …

In natural anoxic environments, anoxygenic photosynthetic bacteria fix CO2 by
photoheterotrophy, photoautotrophy, or syntrophic anaerobic photosynthesis. Here, we …

We investigated anaerobic nitrogen (N) cycling in the water column of Lake Kivu, a deep
meromictic tropical lake in East Africa. Data were collected at one station in the Northern …

We make use of a unique high-quality, long-term observational dataset on a tropical lake to
assess the effect of rainfall on lake surface temperature. The lake in question is Lake Kivu …

Major Arctic rivers are undergoing changes due to climate warming with higher discharge
and increased amounts of solutes and organic carbon (OC) draining into rivers and coastal …

Meromictic lakes are interesting ecosystems to study anaerobic microorganisms due their
permanent stratification allowing the formation of a stable anoxic environment. The …

High-elevation lakes in the tropics are subject to extreme environmental fluctuations and
microbes may harbor a unique genomic repertoire, but their composition and diversity are …

Life originated in Archaean oceans, almost 4 billion years ago, in the absence of oxygen
and the presence of high dissolved iron concentrations. Early Earth oxidation is marked …

Anoxygenic phototrophic bacteria can be important primary producers in some meromictic
lakes. Green sulfur bacteria (GSB) have been detected in ferruginous lakes, with some …