Biogeochemical cycling of iron is crucial to many environmental processes, such as ocean
productivity, carbon storage, greenhouse gas emissions and the fate of nutrients, toxic …

Biotic and abiotic surfaces in marine waters are rapidly colonized by microorganisms.
Surface colonization and subsequent biofilm formation and development provide numerous …

Mixed-valent iron [Fe (II)-Fe (III)] minerals such as magnetite and green rust have received a
significant amount of attention over recent decades, especially in the environmental …

Iron is a micronutrient for nearly all life on Earth. It can be used as an electron donor and
electron acceptor by iron-oxidizing and iron-reducing microorganisms and is used in a …

Electrotrophy, the growth of microbes on extracellular electron donors, drives important
biogeochemical cycles and has practical applications. Studies of Fe (II)-based electrotrophy …

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 biochemical mechanisms by which microbes interact with extracellular soluble metal
ions and insoluble redox-active minerals have been the focus of intense research over the …

Iron-dependent denitrification is a safe and promising technology for nitrogen removal in
freshwaters. However, the understanding of microbial physiology and interactions during the …

The rock-hosted subseafloor crustal aquifer harbors a reservoir of microbial life that may
influence global marine biogeochemical cycles. Here we utilized metagenomic libraries of …

In principle, iron oxidation can fuel significant primary productivity and nutrient cycling in
dark environments such as the deep sea. However, we have an extremely limited …