Corals are animals that form close mutualistic associations with endosymbiotic
photosynthetic algae of the genus Symbiodinium. Together they provide the calcium …

Production and consumption processes in soils contribute to the global cycles of many trace
gases (CH4, CO, OCS, H2, N2O, and NO) that are relevant for atmospheric chemistry and …

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

Bacillus methylotrophicus strain L7, exhibited efficient heterotrophic nitrification–aerobic
denitrification ability, with maximum NH4+-N and NO2--N removal rate of 51.58 mg/L/d and …

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 …

New data force us to raise previous estimates of oceanic denitrification. Our revised estimate
of~ 450 Tg N yr-1 (Tg= 10 12 g) produces an oceanic fixed N budget with a large deficit …

The biological clogging of natural porous media, often in conjunction with physical or
chemical clogging, is encountered under a wide range of conditions. Wastewater disposal …

Different methods of biological denitrification of drinking water as well as the microbiology
and stoichiometry of the process are reviewed. Autotrophic bacteria oxidizing anorganic …

Reduction/oxidation (redox) conditions in 15 principal aquifer (PA) systems of the United
States, and their impact on several water quality issues, were assessed from a large data …

Nitrogen is present in the environment in a number of oxidation states (Fig. 1).
Interconversion between these oxidation states is predominantly biological (Fig. 1). In this …