Results 81 to 90 of about 9,744 (190)

Effect of ammonium concentration on methane oxidation and CO2 removal in an anaerobic biotrickling filter treating synthetic landfill gas and leachate

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 8, Page 1632-1642, August 2026.
Abstract BACKGROUND Landfill gas (LFG) and leachate are commonly treated separately through energy‐intensive processes. This study evaluated the integration of both streams in an anaerobic biotrickling filter (BTF) to achieve simultaneous methane (CH4) and carbon dioxide (CO2) removal coupled with ammonium (NH4+) transformation, and how the microbial ...
Cecilia Lizeth Alvarez‐Guzmán, Karla María Muñoz‐Páez, Alejandro Vargas, Idania Valdez‐Vazquez   +3 more
wiley   +1 more source

Global Carbon Investment in Terrestrial Biological Nitrogen Fixation

Global Biogeochemical Cycles, Volume 40, Issue 8, August 2026.
Abstract Biological nitrogen (N) fixation (BNF) provides the N needed to produce proteins and other biological building blocks, helping feed humanity and mitigate climate change. Due to its high energetic cost compared to other forms of N acquisition, biotic investment in BNF indicates N limitation. Globally gridded BNF flux data provide an opportunity
Duncan N. L. Menge, Carla R. Reis Ely, Steven S. Perakis, Sian Kou‐Giesbrecht, Cory C. Cleveland, Sasha C. Reed, Benton N. Taylor, Sarah A. Batterman, Timothy E. Crews, Katherine A. Dynarski, Jennifer L. Funk, Maga Gei, Kevin L. Griffin, Michael J. Gundale, David F. Herridge, Sarah E. Jovan, Mark B. Peoples, Johannes Piipponen, Emilio Rodríguez‐Caballero, Verity G. Salmon, Fiona M. Soper, Anika P. Staccone, Bettina Weber, Amelia A. Wolf, Nina Wurzburger   +24 more
wiley   +1 more source

Some Physiological Responses of Nostoc sp. JAH 109 to the Combination Effects of Limited Irradiance, pH and DIC Availability [PDF]

فیزیولوژی محیطی گیاهی, 2006
Growth, pigment compositions, nitrogenase activity, photosynthesis and heterosyct frequency fluctuations of dominant species Nostoc sp. JAH 109, isolated from rice field, were evaluated in combination of limited irradiance (2 uE.m-2.s-1), different pHs ...
shadman Shokravi, Fariba Amirlatifi, maryam Safaie, y Ghasemi, neda Soltani   +4 more
doaj  

Genetic and Biochemical Analysis of the Azotobacter vinelandii Molybdenum Storage Protein

Frontiers in Microbiology, 2019
The N2 fixing bacterium Azotobacter vinelandii carries a molybdenum storage protein, referred to as MoSto, able to bind 25-fold more Mo than needed for maximum activity of its Mo nitrogenase.
Mónica Navarro-Rodríguez, José María Buesa, Luis M. Rubio   +2 more
doaj   +1 more source

Systematic identification of endogenous strong constitutive promoters from the diazotrophic rhizosphere bacterium Pseudomonas stutzeri DSM4166 to improve its nitrogenase activity. [PDF]

Microb Cell Fact, 2023
Yu G, Li X, Duan Q, Fu J, Zhang Y, Wang H, Luan J.   +6 more
europepmc   +1 more source

Nitrogen and Phosphorus Controls on Phytoplankton Growth and Bacterioplankton Communities in Wetland Impoundments

Freshwater Biology, Volume 71, Issue 8, August 2026.
ABSTRACT Nutrient enrichment in shallow lakes and ponds can shift systems from clear water, macrophyte dominance to turbid, phytoplankton dominance. Because the identity and threshold of the limiting nutrients vary among sites, system‐specific evidence is needed to guide water quality management. We conducted 3‐day in situ nutrient‐enrichment bioassays
Rachel. L. Wood, Jakob L. Young, Madeleine P. Malmfeldt, Adam J. Norris, Zachary T. Aanderud, Michelle A. Baker   +5 more
wiley   +1 more source

Formation of NifA-PII complex represses ammonium-sensitive nitrogen fixation in diazotrophic proteobacteria lacking NifL

Cell Reports
Summary: Biological nitrogen fixation catalyzed by nitrogenase contributes greatly to the global nitrogen cycle. Nitrogenase expression is subject to regulation in response to nitrogen availability.
Yan Zeng, Lu Guo, Yongqiang Gao, Lingwei Cui, Mengmei Wang, Lu Huang, Mingyue Jiang, Ying Liu, Yaxin Zhu, Hua Xiang, De-Feng Li, Yanning Zheng   +11 more
doaj   +1 more source

Dynamic diel proteome and daytime nitrogenase activity supports buoyancy in the cyanobacterium Trichodesmium. [PDF]

Nat Microbiol, 2022
Held NA, Waterbury JB, Webb EA, Kellogg RM, McIlvin MR, Jakuba M, Valois FW, Moran DM, Sutherland KM, Saito MA.   +9 more
europepmc   +1 more source

Decoding stress resilience in soybean: Regulatory networks and precision breeding under climate change

Journal of Integrative Plant Biology, Volume 68, Issue 8, Page 2838-2868, August 2026.
This review covers recent progress in the understanding of stress‐responsive regulatory networks in soybean and highlights emerging genomic and breeding strategies. Integrating molecular insights and precision breeding will help to accelerate the development of climate‐resilient soybean cultivars.
Ali Shahzad, Monan Sun, Shuangkang Pei, Xiaoyu Liu, Yinhe Zhang, Keheng Xu, Hongtao Gao, Yonggang Zhou, Haiyan Li   +8 more
wiley   +1 more source

Two distinct ferredoxins are essential for nitrogen fixation by the iron nitrogenase in Rhodobacter capsulatus

mBio
Nitrogenases are the only enzymes able to fix gaseous nitrogen into bioavailable ammonia and hence are essential for sustaining life. Catalysis by nitrogenases requires both a large amount of ATP and electrons donated by strongly reducing ferredoxins or ...
Holly Addison, Timo Glatter, Georg K. A. Hochberg, Johannes G. Rebelein   +3 more
doaj   +1 more source