This review is concerned with the isotopic relationships between organic compounds
produced by a single organism, specifically their enrichments or depletions in 13C relative to …

Lipid molecules are organic compounds, insoluble in water, and based on carbon-carbon
chains that form an integral part of biological cell membranes. As such, lipids are ubiquitous …

Nitrospira are barely studied and mostly uncultured nitrite-oxidizing bacteria, which are,
according to molecular data, among the most diverse and widespread nitrifiers in natural …

Organic molecules are key components of the Earth-life system. Their stable isotope
composition provides information on various problems such as past climate, energy …

Recent work has highlighted the ubiquity of bacteria and archaea and continues to affirm
their significance in diverse biogeochemical processes. The δ13C values and distributions …

The biomass, phylogenetic composition, and photoautotrophic metabolism of green sulfur
bacteria in the Black Sea was assessed in situ and in laboratory enrichments. In the center …

The stratified water column of the Black Sea is partitioned into oxic, suboxic, and euxinic
zones, each characterized by different biogeochemical processes and by distinct microbial …

Branched Glycerol Dialkyl Glycerol Tetraethers (GDGTs) are membrane spanning lipids
synthesised by as yet unknown bacteria that thrive in soils and peat. In order to obtain more …

The average citizen thinks of microbes as dangerous or at least as nasty enemies to her/his
health that she/he cannot see. The invisibility to the naked eye is the reason why microbes …

The molecular and isotopic compositions of lipid biomarkers of cultured Aquificales genera
have been used to study the community and trophic structure of the hyperthermophilic pink …