Results 51 to 60 of about 465,287 (202)

Abundances of Iron-Binding Photosynthetic and Nitrogen-Fixing Proteins of Trichodesmium Both in Culture and In Situ from the North Atlantic [PDF]

, 2012
Marine cyanobacteria of the genus Trichodesmium occur throughout the oligotrophic tropical and subtropical oceans, where they can dominate the diazotrophic community in regions with high inputs of the trace metal iron (Fe).
Pratt, Nicola J., Macey, Anna I., Anna I Macey, David J Honey, Moore, C. Mark, Nicola J Pratt, Sophie Richier, Pratt Nicola J., C Mark Moore, Macey Anna I., Bibby Thomas S., Richier Sophie, Honey David J., Moore C. Mark, Honey, David J., Richier, Sophie, Bibby, Thomas S., Thomas S Bibby   +17 more
core   +1 more source

Assessing N2 fixation flux and its controlling factors in the (sub)tropical western North Pacific through high‐resolution observations

Limnology and Oceanography Letters
The (sub)tropical western North Pacific is potentially an area of intense nitrogen (N2) fixation in the global ocean, despite limited understanding of the flux and controlling factors.
Xinran Yu, Zuozhu Wen, Ruotong Jiang, Jin‐Yu Terence Yang, Zhimian Cao, Haizheng Hong, Yuntao Zhou, Dalin Shi   +7 more
doaj   +1 more source

The contamination of commercial 15N2 gas stocks with 15N-labeled nitrate and ammonium and consequences for nitrogen fixation measurements. [PDF]

PLoS ONE, 2014
We report on the contamination of commercial 15-nitrogen (15N) N2 gas stocks with 15N-enriched ammonium, nitrate and/or nitrite, and nitrous oxide. 15N2 gas is used to estimate N2 fixation rates from incubations of environmental samples by monitoring the
Richard Dabundo, Moritz F Lehmann, Lija Treibergs, Craig R Tobias, Mark A Altabet, Pia H Moisander, Julie Granger   +6 more
doaj   +1 more source

Dating the cyanobacterial ancestor of the chloroplast [PDF]

, 2009
Cyanobacteria have played a pivotal role in the history of life on Earth being the first organism to carry out oxygenic photosynthesis, which changed atmospheric chemistry and allowed the evolution of Eukarya.
Luisa Falcon, Susana Magallon, Amanda Castillo   +2 more
core  

Quantifying N2 fixation and its contribution to export production near the Tonga-Kermadec Arc using nitrogen isotope budgets

Frontiers in Marine Science, 2023
The spatial distribution of marine di-nitrogen (N2) fixation informs our understanding of the sensitivities of this process as well as the potential for this new nitrogen (N) source to drive export production, influencing the global carbon (C) cycle and ...
Heather J. Forrer, Sophie Bonnet, Rachel K. Thomas, Olivier Grosso, Cecile Guieu, Angela N. Knapp   +5 more
doaj   +1 more source

Symbiotic N2 fixation response to drought [PDF]

Journal of Experimental Botany, 1999
Symbiotic nitrogen fixation is highly sensitive to drought, which results in decreased N accumulation and yield of legume crops. The effects of drought stress on N 2 fixation usually have been perceived as a consequence of straightforward physiological responses acting on nitrogenase activity and involving exclusively one of three mechanisms: carbon ...
R. Serraj, T. R. Sinclair, L. C. Purcell
openaire   +1 more source

Potential trace metal co-limitation controls on N2 fixation and NO3- uptake in lakes with varying trophic status

Frontiers in Microbiology, 2013
The response of N2 fixation and NO3- uptake to environmental conditions and nutrient enrichment experiments in three western U.S. lake systems was studied (eutrophic Clear Lake; mesotrophic Walker Lake; oligotrophic Lake Tahoe).
Isabel C. Romero, Nick Joseph Klein, Sergio A Sanudo-Wilhelmy, Douglas G Capone   +3 more
doaj   +1 more source

N2 fixation in the (sub)tropical western North Pacific.xlsx

, 2023
The dataset includes high-density observations of N2 fixation rates in the (sub)tropical western North Pacific and the associated environmental parameters.
Ruotong Jiang (17075099), Zhimian Cao (8559666), Yuntao Zhou (1285761), Zuozhu Wen (17069485), Dalin Shi (17344414), Xinran Yu (17067256), Jinyu Yang (774505), Haizheng Hong (2237941)   +7 more
core   +1 more source

Long term decline of the planktonic biomass in a hotspot of nitrogen fixation

Nature Communications
Oceanic N2 fixation by diazotrophic microorganisms is the primary external source of new nitrogen to the surface ocean sustaining net production of organic matter.
Alain Fumenia, Hubert Loisel, David M. Karl, Vincent Vantrepotte, Anne Petrenko, Sophie Bonnet, Manh Tran-Duy, Marine Bretagnon, Antoine Mangin, Thierry Moutin   +9 more
doaj   +1 more source

Wood properties and N2 fixation rates

, 2016
Wood properties (density, moisture, relative N concentration and d15N) and N2 fixation rates measured for decaying Norway spruce wood collected from Lapinjärvi ...
Katja Rinne-Garmston (3210315), Peltoniemi, Krista, Smolander, Aino, Rajala, Tiina, Rinne, Katja T., Krista Peltoniemi (3200388), Aino Smolander (3200382), Raisa Mäkipää (3200385), Mäkipää, Raisa, Chen, Janet, Janet Chen (1529005), Tiina Rajala (366284)   +11 more
core   +1 more source