Results 61 to 70 of about 32,937 (152)

Mitochondrial Respiratory Metabolism in Salt‐Stressed Barley (Hordeum vulgare): TCA Cycle Activation With Limited GABA Shunt Engagement

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Plants maintain energy balance under salinity stress through increased respiration and energy use, processes also associated with reactive oxygen species generation. Although respiration imposes a high energy cost, mitochondrial respiration and the tricarboxylic acid (TCA) cycle activity are vital for ATP production and for providing electron ...
Ali Bandehagh, Nicolas L. Taylor
wiley   +1 more source

Improvement of succinate production from methane by combining rational engineering and laboratory evolution in Methylomonas sp. DH-1

open access: yesMicrobial Cell Factories
Recently, methane has been considered a next-generation carbon feedstock due to its abundance and it is main component of shale gas and biogas. Methylomonas sp. DH-1 has been evaluated as a promising industrial bio-catalyst candidate.
Jae-Hwan Jo   +16 more
doaj   +1 more source

Biochar and K‐fertigation modulate stomatal behaviour, ion homeostasis and water use efficiency in waxy maize seedlings under salt stress

open access: yesJournal of Agronomy and Crop Science, Volume 212, Issue 6, November 2026.
Efficacy of wheat straw biochar in alleviating salt stress under K‐fertigation via improved photosynthesis, water use efficiency and ion homeostasis in waxy maize. ABSTRACT K‐fertigation and soil amendment could ameliorate the adverse effects of saline stress on C4 crop physiology and performance, yet the underlying mechanisms remained largely elusive.
Chunshuo Liu   +9 more
wiley   +1 more source

The Regulation of Phosphoenolpyruvate Carboxylase in Stomatal Guard Cells of Commelina communis [PDF]

open access: yes, 1994
A great deal of work has been done recently to investigate mechanisms which control plant metabolism. In the CAM and C4 systems, it was found that phosphoenolpyruvate carboxylase which catalyses the primary fixation of CO2 in these plants is controlled ...
Nelson, John Paul S
core   +4 more sources

Extending the Farquhar–von Caemmerer–Berry photosynthesis model to account for various photorespiratory bypasses

open access: yesNew Phytologist, Volume 252, Issue 3, Page 1327-1342, November 2026.
We extend a widely used C3‐photosynthesis model to account for various photorespiratory bypasses, thereby, providing a useful resource and framework that enforces future novel bypass work and scrutinize if the results go counter to theory. Our model analyses show that of the 17 published bypass pathways, full‐decarboxylating bypasses (that have been ...
Xinyou Yin   +3 more
wiley   +1 more source

Laying the Foundation for Crassulacean Acid Metabolism (CAM) Biodesign: Expression of the C4 Metabolism Cycle Genes of CAM in Arabidopsis

open access: yesFrontiers in Plant Science, 2019
Crassulacean acid metabolism (CAM) is a specialized mode of photosynthesis that exploits a temporal CO2 pump with nocturnal CO2 uptake and concentration to reduce photorespiration, improve water-use efficiency (WUE), and optimize the adaptability of ...
Sung Don Lim   +4 more
doaj   +1 more source

Metabolic Flux Analysis Reveals Cell Line‐Specific Rewiring in CHO Cells Following TCA Cycle Intermediate Feeding for Bioprocess pH Control

open access: yesBiotechnology and Bioengineering, Volume 123, Issue 10, Page 2713-2728, October 2026.
ABSTRACT Chinese hamster ovary (CHO) cells are the leading host for recombinant therapeutic protein production in the biopharma industry. In this study, we investigated how feeding acidic forms of tricarboxylic acid (TCA) cycle intermediates—malic acid, succinic acid, and α‐ketoglutaric acid—affects cell culture performance and metabolism in two ...
Sarah A. Sacco   +8 more
wiley   +1 more source

Glutamine Metabolism in Health and Diseases

open access: yesMedComm, Volume 7, Issue 10, October 2026.
Glutamine metabolism acts as a metabolic hub connecting cellular stress adaptation, immune regulation, and disease development. Through regulating energy production, biosynthesis, redox balance, and nitrogen metabolism, glutamine supports cellular homeostasis under physiological and pathological conditions.
Yi Ding   +3 more
wiley   +1 more source

Phylogenetic Constraints and Environmental Filtering Jointly Drive Adaptive Evolution in Phragmites australis: From Genetic Structure to Trait Decoupling on the Mongolian Plateau

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
Integrating landscape genomics and functional traits across the Mongolian Plateau, we reveal that Phragmites australis exhibits a genetic structure shaped by hydrological connectivity and moisture heterogeneity. Crucially, we identify a strategy of evolutionary decoupling where physiological traits remain highly plastic to adapt to local environments ...
Rui Zhang   +7 more
wiley   +1 more source

Phosphoenolpyruvate carboxylase identified as a key enzyme in erythrocytic Plasmodium falciparum carbon metabolism.

open access: yesPLoS Pathogens, 2014
Phospoenolpyruvate carboxylase (PEPC) is absent from humans but encoded in the Plasmodium falciparum genome, suggesting that PEPC has a parasite-specific function. To investigate its importance in P. falciparum, we generated a pepc null mutant (D10(Δpepc)
Janet Storm   +7 more
doaj   +1 more source

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