L
Laura A. Bristow
Researcher at University of Southern Denmark
Publications - 39
Citations - 1609
Laura A. Bristow is an academic researcher from University of Southern Denmark. The author has contributed to research in topics: Denitrification & Anoxic waters. The author has an hindex of 17, co-authored 32 publications receiving 1043 citations. Previous affiliations of Laura A. Bristow include Max Planck Society & University of Massachusetts Amherst.
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Journal ArticleDOI
Ammonium and nitrite oxidation at nanomolar oxygen concentrations in oxygen minimum zone waters
Laura A. Bristow,Tage Dalsgaard,Laura Tiano,Daniel B. Mills,Anthony D. Bertagnolli,Jody J. Wright,Steven J. Hallam,Osvaldo Ulloa,Donald E. Canfield,Niels Peter Revsbech,Bo Thamdrup +10 more
TL;DR: It is demonstrated that two key aerobic processes, ammonium oxidation and nitrite oxidation, persist even at low oxygen levels of 5–30 nM (∼0.01% air saturation); assessment of the oxygen (O2) sensitivity of these processes down to the O2 concentrations present in the OMZ core is essential for understanding and modeling nitrogen loss in OMZs.
Journal ArticleDOI
N2 production rates limited by nitrite availability in the Bay of Bengal oxygen minimum zone
Laura A. Bristow,Laura A. Bristow,Cameron M. Callbeck,Morten Larsen,Mark A. Altabet,Julien Dekaezemacker,Michael Forth,Mangesh Gauns,Ronnie N. Glud,Marcel M. M. Kuypers,Gaute Lavik,Jana Milucka,S.W.A. Naqvi,Anil Pratihary,Niels Peter Revsbech,Bo Thamdrup,Alexander H. Treusch,Donald E. Canfield +17 more
TL;DR: Chemical and molecular analyses reveal that trace levels of oxygen inhibit nitrate formation, largely preventing microbial N2 production in the Bay of Bengal.
Journal ArticleDOI
SAR11 bacteria linked to ocean anoxia and nitrogen loss.
Despina Tsementzi,Jieying Wu,Samuel Deutsch,Sangeeta Nath,Luis M. Rodriguez-R,Andrew S. Burns,Piyush Ranjan,Neha Sarode,Rex R. Malmstrom,Cory C. Padilla,Benjamin K. Stone,Laura A. Bristow,Morten Larsen,Jennifer B. Glass,Bo Thamdrup,Tanja Woyke,Konstantinos T. Konstantinidis,Frank J. Stewart +17 more
TL;DR: In this paper, genomic analysis of single cells from the world's largest oxygen minimum zones (OMZs) revealed previously uncharacterized SAR11 lineages with adaptations for life without oxygen, including genes for respiratory nitrate reductases (Nar).
Journal ArticleDOI
Size-fraction partitioning of community gene transcription and nitrogen metabolism in a marine oxygen minimum zone
TL;DR: The proportional representation of major microbial taxa and N cycle gene transcripts in metatranscriptomes followed fraction-specific trends, suggesting that the majority of N cycle activity is confined to a FL majority that is critically dependent on access to particles.
Journal ArticleDOI
Nutrients that limit growth in the ocean
TL;DR: This primer will highlight shifts in the traditional paradigms of nutrient limitation in the ocean, with a focus on the uniqueness of the nitrogen cycling and its biological sources and sinks.