Results 51 to 60 of about 54,026 (308)

High N2 fixation rates in mycorrhizal tubercles on pine roots

Geoderma
Tuberculate ectomycorrhizae (tubercles) are a type of mycorrhizal association, in which the fungus and root combine to form nodular structures. Diazotrophs associated with these structures could fix atmospheric N2 and contribute to N supply for plants in
Wenyi Xu, Shahid Mahmood, Björn Lindahl, Marie Spohn   +3 more
doaj   +1 more source

The Transcriptional Cycle Is Suited to Daytime N₂ Fixation in the Unicellular Cyanobacterium “Candidatus Atelocyanobacterium thalassa” (UCYN-A)

mBio, 2019
Symbiosis between a marine alga and a N2-fixing cyanobacterium (Cyanobacterium UCYN-A) is geographically widespread in the oceans and is important in the marine N cycle. UCYN-A is uncultivated and is an unusual unicellular cyanobacterium because it lacks
María del Carmen Muñoz-Marín, Irina N. Shilova, Tuo Shi, Hanna Farnelid, Ana María Cabello, Jonathan P. Zehr   +5 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

The fate of N2O consumed in soils [PDF]

, 2007
Soils are capable to consume N2O. It is generally assumed that consumption occurs exclusively via respiratory reduction to N2 by denitrifying organisms (i.e. complete denitrification). Yet, we are not aware of any verification of this assumption.
Seth, B., Conen, F., C. Alewell, F. Conen, B. Vieten, Vieten, B., Alewell, C., B. Seth   +7 more
core   +1 more source

Standardized Effect Measures Informing Next‐Generation Strategies for Mechanical Stimulation in Cartilage Tissue Engineering

Advanced Healthcare Materials, EarlyView.
This systematic review quantitatively compares conventional mechanical stimulation strategies in cartilage tissue engineering across 85 heterogeneous in vitro studies. Applying standardized effect measures, meta‐analysis reveals that combined compression and shear loading optimally promotes cartilage matrix development.
Jiaqi K. Shen, Tony B. Huang, Catherine E. Davey, Elias Salzer, Gerjo J. V. M. Van Osch, Sandra J. Shefelbine, Marcus G. Pandy, Kathryn S. Stok   +7 more
wiley   +1 more source

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

Engineered AuNPs/fMWCNT Nanocomposite Electrodes for High‐Sensitivity Methylglyoxal Sensing in Saliva and Sweat for Non‐Invasive Diabetes Monitoring

Advanced Healthcare Materials, EarlyView.
An AuNPs/fMWCNT nanocomposite‐modified screen‐printed carbon electrode was engineered via sequential electrodeposition and integrated into a 3D‐printed microfluidic platform for ultrasensitive methylglyoxal detection. The non‐invasive sensing platform enables rapid analysis in saliva and sweat, highlighting strong potential for wearable point‐of‐care ...
Ahadul Amin Soshi, Md Younus Ali, Dadbeh Pazuki, Matiar M.R. Howlader   +3 more
wiley   +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

Nitrogen fixation by a Bangladesh deepwater rice-field calothrix [PDF]

, 1990
In order to study the influence on blue-green algal nitrogenase activity of environmental variables in deepwater rice-fields (DWR), a laboratory study was planned on a DWR isolate of Calothrix (D764).
Islam, M.D. Rafiqul, Islam, R.M
core  

Genetic Factors in Rhizobium Affecting the Symbiotic Carbon Costs of N2 Fixation and Host Plant Biomass Production

, 1986
The effect of genetic factors in Rhizobium on host plant biomass production and on the carbon costs of N2 fixation in pea root nodules was studied. Nine strains of Rhizobium leguminosarum were constructed, each containing one of three symbiotic plasmids ...
Witty, J. F., L. SKØT, Hirsch, P. R., P. R. Hirsch, J. F. Witty, Skot, L., Skøt, L.   +6 more
core   +1 more source