Catarina Magalhães

TL;DR: Results from monthly surveys showed that environmental parameters other than NO3- availability may be important in controlling the variation in N2O production via denitrification, suggesting that halotolerant bacteria dominated the denitrifier communities.

TL;DR: This commentary outlines the establishment, function and aims of the Ocean Sampling Day Consortium and describes the vision for a sustainable study of marine microbial communities and their embedded functional traits.

TL;DR: R reverse transcription-PCR-denaturing gradient gel electrophoresis analysis of nirK, nirS and nosZ transcripts showed a progressive decrease in the diversity of the transcription products of these genes with an increase of the Cu concentration.

TL;DR: In this paper, the effects of trace metals on denitrification were evaluated in subtidal and intertidal sediments of the Douro River estuary in Portugal. And the results obtained suggest that, according to the type of estuarine sediment, trace metals cannot only reduce total N removal from an estuary via denitification but also can enhance the release of N 2 O, a powerful greenhouse gas.

TL;DR: A recent discovery of a chemoautotrophic ammonia-oxidizing archaeon, Nitrosopumilus maritimus, changed our concept of the range of organisms involved in nitrification, highlighting the importance of ammonia-oxyidizing organisms (AOA) as potential players in global biogeochemical nitrogen transformations as mentioned in this paper.