Cyanobacteria are the only prokaryotes to have evolved oxygenic photosynthesis,
transforming the biology and chemistry of our planet. Genomic and evolutionary studies …

Understanding the role of biology in planetary evolution remains an outstanding challenge
to geobiologists. Progress towards unravelling this puzzle for Earth is hindered by the …

Methane is a potent greenhouse gas, which likely enabled the evolution of life by keeping
the early Earth warm. Here, we demonstrate routes towards abiotic methane and ethane …

Sulfide prevails in both industrial and municipal waste streams and is one of the most
troublesome issues with waste handling. Various technologies and strategies have been …

The origin and early evolution of photosynthesis are reviewed from an ecophysiological
perspective. Earth's first ecosystems were chemotrophic, fueled by geological H2 at …

The biotic and abiotic controls on major shifts in atmospheric oxygen and the persistence of
low-oxygen periods over a majority of Earth's history remain under debate. Explanations of …

Cyanobacteriota, the sole prokaryotes capable of oxygenic photosynthesis (OxyP), occupy a
unique and pivotal role in Earth's history. While the notion that OxyP may have originated …

The ability to harvest light to drive chemical reactions and gain energy provided microbes
access to high energy electron donors which fueled primary productivity, biogeochemical …

Cyanobacteria constitute the only phylum of oxygen-evolving photosynthetic prokaryotes
that shaped the oxygenic atmosphere of our planet. Over time, cyanobacteria have evolved …

We report the isolation of a pinnacle-forming cyanobacterium isolated from a microbial mat
covering the sediment surface at Little Salt Spring—a flooded sinkhole in Florida with a …