Results 81 to 90 of about 33,406 (213)

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

How Close We Are to Achieving Commercially Viable Large-Scale Photobiological Hydrogen Production by Cyanobacteria: A Review of the Biological Aspects

Life, 2015
Photobiological production of H2 by cyanobacteria is considered to be an ideal source of renewable energy because the inputs, water and sunlight, are abundant. The products of photobiological systems are H2 and O2; the H2 can be used as the energy source
Hidehiro Sakurai, Hajime Masukawa, Masaharu Kitashima, Kazuhito Inoue   +3 more
doaj   +1 more source

Arbuscular Mycorrhiza Modulates Iron Distribution and Vacuolar Iron Transporter Expression in Tomato, Whereas Iron Limitation Reduces Mycorrhization

Plant, Cell &Environment, EarlyView.
ABSTRACT Plants have evolved highly efficient strategies to maintain iron (Fe) homeostasis. In this study, we investigate the impact of arbuscular mycorrhizal (AM) symbiosis on the Fe‐deficiency response and ionomic profile of tomato plants, as well as how Fe availability affects AM symbiosis.
Víctor M. López‐Lorca, Olga López‐Castillo, Mª Jesús Molina‐Luzón, Nuria Ferrol   +3 more
wiley   +1 more source

Input of nitrogen from N2 fixation to northern grasslands [PDF]

, 2005
Forage legumes form N2-fixing symbioses with rhizobia and may thus make substantial contributions to the N pool in grasslands. However, to optimize their use as sources of N, it is important to elucidate the effects of management factors that influence ...
Carlsson, Georg
core  

Symbiosis‐associated UMAMIT transporters required for establishing efficient nitrogen fixation in Medicago truncatula

New Phytologist, Volume 250, Issue 1, Page 530-546, April 2026.
Summary To address a critical gap in understanding amino acid transport in legume–Rhizobium symbiosis, we investigated the role of symbiosis‐associated USUALLY MULTIPLE ACIDS MOVE IN AND OUT TRANSPORTERS (UMAMITs) in Medicago truncatula nodulation.
Courtney S. Winning, María Isabel Rubia, Wei Liu, Daniel Bronitt, Ángel María Zamarreño, José María García‐Mina, Penelope Smith, Estíbaliz Larrainzar, Michael A. Djordjevic   +8 more
wiley   +1 more source

Nitrogenase's Nascence [PDF]

Science, 2011
Evolution![Figure][1] CREDIT: DR. RACHEL A. FOSTER On early Earth, abiotic processes formed the initial supply of fixed (bioavailable) nitrogen necessary to maintain basic metabolic functions. As life began to flourish, this supply probably couldn't meet demand, and evolutionary pressures selected for a means of biological nitrogen fixation. How did
openaire   +1 more source

Reprogramming of Gene Transcripts and Metabolites by the Wild Soybean Endophyte Pseudomonas sp. 77S3 Improves Soybean Salt Tolerance

Plant Biotechnology Journal, Volume 24, Issue 4, Page 2704-2721, April 2026.
ABSTRACT Soybean is a critical source of protein and vegetable oil worldwide. Expanding its cultivation into salinity lands represents a promising strategy for increasing production; however, soil salinity severely limits soybean growth by disrupting physiological and metabolic homeostasis.
Wanying Zhang, Chengyang Song, Tianqi Wang, Xiulin Liu, Yisheng Fang, Zhu Yan, Yaxi Zhu, Na Zheng, Xiaofei Ma, Guochen Qin, Dan Zhu, Junchuan Xiao, Xing Wang Deng, Xiao Luo   +13 more
wiley   +1 more source

Nitrogen regulation of protein–protein interactions and transcript levels of GlnK PII regulator and AmtB ammonium transporter homologs in Archaea [PDF]

, 2013
Gene homologs of GlnK PII regulators and AmtB-type ammonium transporters are often paired on prokaryotic genomes, suggesting these proteins share an ancient functional relationship.
Adler, Allers, Andrade, Atkinson, Bell, Bitan-Banin, Bonete, Camacho, Chellamuthu, Cline, Conroy, Coutts, Detsch, Dodsworth, Eichler, Garber, Gruswitz, Hammelmann, Han, Hervás, Huergo, Huergo, Huergo, Javelle, Javelle, Jiang, Khademi, Lee, Liu, Maier, Mangum, Martínez-Espinosa, Martínez-Espinosa, Moure, Najera-Fernandez, Pedro-Roig, Pedro-Roig, Pedro-Roig, Radchenko, Rodriguez-Valera, Russek, Sant'Anna, Severi, Strösser, Thomas, Thornton, Tremblay, Weiss, Werner, Xu, Zamaroczy, Zhang, Zhang, Zheng   +53 more
core   +2 more sources

Structural and Functional Validation of Pseudomonas Savastanoi Ethylene Forming Enzymes Reveals Flexibility in 2‐Oxoglutarate Binding Mode and Conformation

ChemBioChem, Volume 27, Issue 5, 13 March 2026.
Studies with naturally occuring variants of the Pseudomonas savastanoi ethylene‐forming enzyme (PsEFE) inform on the effect of residues on turnover and product ratio. Crystallographic studies imply a potential for metal ion sensing. Pseudomonas savastanoi pv.
Yihong Sun, Siddhant Dhingra, Mark D. Allen, Ethan S. Z. Cheng, Zhihong Zhang, Christopher J. Schofield, Lennart Brewitz   +6 more
wiley   +1 more source

Biosynthesis of Nitrogenase Metalloclusters [PDF]

Chemical Reviews, 2013
Nitrogenase is a complex metalloenzyme that is best known for its function in biological nitrogen fixation.1,2 Harbored in a group of microbes called diazotrophs, nitrogenase catalyzes the reduction of nitrogen (N2) to ammonia (NH3) in a reaction that is usually depicted as N2 + 8H+ + 16MgATP + 8e− → 2NH3 + H2 + 16MgADP + 16Pi.
Markus W, Ribbe, Yilin, Hu, Keith O, Hodgson, Britt, Hedman   +3 more
openaire   +2 more sources