Nitrite-oxidizing bacteria (NOB) catalyze the second step of nitrification, nitrite oxidation to
nitrate, which is an important process of the biogeochemical nitrogen cycle. NOB were …

Anaerobic oxidation of methane (AOM) is catalyzed by anaerobic methane‐oxidizing
archaea (ANME) via a reverse and modified methanogenesis pathway. Methanogens can …

Salivary glands concentrate plasma nitrate into saliva, leading to high nitrate concentrations
that can reach the millimolar range after a nitrate-rich vegetable meal. Whereas human cells …

Molybdenum is the only second-row transition metal required by most living organisms, and
is nearly universally distributed in biology. Enzymes containing molybdenum in their active …

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 …

This paper explores the bioenergetics and potential co-evolution of denitrification and
aerobic respiration. The advantages and disadvantages of combining these two pathways in …

The nitrate anion is a simple, abundant and relatively stable species, yet plays a significant
role in global cycling of nitrogen, global climate change, and human health. Although it has …

Nitrate is a key node in the network of the assimilatory and respiratory nitrogen pathways. As
one of the 'fixed'forms of nitrogen, nitrate plays an essential role in both nature and industry …

Nitrogen is an essential element of life that needs to be assimilated in its most reduced form,
ammonium. On the other hand, nitrogen exists in a multitude of oxidation states and …

Nitrite is one of the players in the broad nitrogen biogeochemical cycle. This nitrogen oxo-
anion is involved in key pathways crucial to life on Earth and to the planetary “recycling” of …