Results 1 to 10 of about 389,947 (268)

Isoenzymatic Pattern of Hydrogen Sulfide (H₂S)-Generating L-Cysteine Desulfhydrase (LCD) in Arabidopsis thaliana Seedlings: Effect of Nitric Oxide (NO) and H₂S

Nitrogen, 2023
In higher plants, hydrogen sulfide (H2S) is a recognized signaling molecule that performs multiple regulatory functions. The enzyme L-cysteine desulfhydrase (LCD) catalyzes the conversion of L-cysteine (L-Cys) to pyruvate and ammonium with the ...
Jorge De La O-Sánchez, María A. Muñoz-Vargas, José M. Palma, Francisco J. Corpas   +3 more
doaj   +1 more source

Functions of Nitric Oxide (NO) in Roots during Development and under Adverse Stress Conditions

Plants, 2015
The free radical molecule, nitric oxide (NO), is present in the principal organs of plants, where it plays an important role in a wide range of physiological functions.
Francisco J. Corpas, Juan B. Barroso
doaj   +1 more source

Nitro-Oleic Acid-Mediated Nitroalkylation Modulates the Antioxidant Function of Cytosolic Peroxiredoxin Tsa1 during Heat Stress in Saccharomyces cerevisiae

Antioxidants, 2022
Heat stress is one of the abiotic stresses that leads to oxidative stress. To protect themselves, yeast cells activate the antioxidant response, in which cytosolic peroxiredoxin Tsa1 plays an important role in hydrogen peroxide removal.
Lorena Aranda-Caño, Raquel Valderrama, José Rafael Pedrajas, Juan C. Begara-Morales, Mounira Chaki, María N. Padilla, Manuel Melguizo, Francisco Javier López-Jaramillo, Juan B. Barroso   +8 more
doaj   +1 more source

Post-Translational Modification of Proteins Mediated by Nitro-Fatty Acids in Plants: Nitroalkylation

Plants, 2019
Nitrate fatty acids (NO2-FAs) are considered reactive lipid species derived from the non-enzymatic oxidation of polyunsaturated fatty acids by nitric oxide (NO) and related species.
Lorena Aranda-Caño, Beatriz Sánchez-Calvo, Juan C. Begara-Morales, Mounira Chaki, Capilla Mata-Pérez, María N. Padilla, Raquel Valderrama, Juan B. Barroso   +7 more
doaj   +1 more source

Potassium (K⁺) Starvation-Induced Oxidative Stress Triggers a General Boost of Antioxidant and NADPH-Generating Systems in the Halophyte Cakile maritima

Antioxidants, 2022
Potassium (K+) is an essential macro-element for plant growth and development given its implication in major processes such as photosynthesis, osmoregulation, protein synthesis, and enzyme function.
Hayet Houmani, Ahmed Debez, Larisse de Freitas-Silva, Chedly Abdelly, José M. Palma, Francisco J. Corpas   +5 more
doaj   +1 more source

Pomegranate (Punica granatum L.) Fruits: Characterization of the Main Enzymatic Antioxidants (Peroxisomal Catalase and SOD Isozymes) and the NADPH-Regenerating System

Agronomy, 2019
Pomegranate (Punica granatum L.) is a common edible fruit. Its juice can be used as a source of antioxidative compounds, primarily polyphenols and vitamin C, in addition to other vitamins and minerals.
Melisa Pinilla, Jessica Iglesias-Moya, María Jesús Campos, Francisco J. Corpas, José M. Palma   +4 more
doaj   +1 more source

NADPH Oxidase (Rboh) Activity is Up Regulated during Sweet Pepper (Capsicum annuum L.) Fruit Ripening

Antioxidants, 2019
In plants, NADPH oxidase (NOX) is also known as a respiratory burst oxidase homolog (Rboh). This highly important enzyme, one of the main enzymatic sources of superoxide radicals (O2•−), is involved in the metabolism of reactive oxygen and ...
Ángela Chu-Puga, Salvador González-Gordo, Marta Rodríguez-Ruiz, José M. Palma, Francisco J. Corpas   +4 more
doaj   +1 more source

Protein nitration: A connecting bridge between nitric oxide (NO) and plant stress

Plant Stress, 2021
Nitric oxide (•NO) is a free radical which exerts a myriad of functions in the physiology of higher plants either under physiological and environmental stress conditions.
Francisco J. Corpas, Salvador González-Gordo, José M Palma   +2 more
doaj   +1 more source

Pepper Fruit Extracts Show Anti-Proliferative Activity against Tumor Cells Altering Their NADPH-Generating Dehydrogenase and Catalase Profiles

Antioxidants, 2023
Cancer is considered one of the main causes of human death worldwide, being characterized by an alteration of the oxidative metabolism. Many natural compounds from plant origin with anti-tumor attributes have been described.
Marta Rodríguez-Ruiz, María C. Ramos, María J. Campos, Inmaculada Díaz-Sánchez, Bastien Cautain, Thomas A. Mackenzie, Francisca Vicente, Francisco J. Corpas, José M. Palma   +8 more
doaj   +1 more source

Evaluation of the Binding Affinity of Nitrosylcobalamin to Intrinsic Factor as a Predictive Model for Cobalamin Binding Protein Interactions: A Comparative Study with Hydroxocobalamin

Frontiers in Bioscience-Elite
Background: Intrinsic factor (IF) is a glycoprotein crucial for cobalamin (vitamin B12) absorption in the human body. This study aimed to evaluate the binding affinity of nitrosylcobalamin (NO-Cbl), a cobalamin analog, to recombinant ...
Annette M. Sysel, Joseph A. Bauer
doaj   +1 more source