Results 81 to 90 of about 32,342 (273)

Efecto del estrés producido por la mezcla de sales en la concentración de aldehído malónico, proteínas y enzimas antioxidantes de Leymus chinensis de tres colores foliares diferentes [PDF]

open access: yes, 2017
The mixed salt stress is common in nature. Salt stressalways affects plant growth. Different plant species have different adaptive capacity to salty soil. Leymus chinensis is an herbaceous plant with different leaf colors.
Busso, Carlos Alberto   +6 more
core  

Breeding drought tolerant cowpea: constraints, accomplishments, and future prospects [PDF]

open access: yes, 2009
This review presents an overview of accomplishments on different aspects of cowpea breeding for drought tolerance. Furthermore it provides options to enhance the genetic potential of the crop by minimizing yield loss due to drought stress. Recent efforts
Agbicodo, A.C.M.E.   +4 more
core   +2 more sources

Protein‐Driven Copper Redox Regulation: Uncovering the Role of Disulphide Bonds and Allosteric Modulation

open access: yesAngewandte Chemie International Edition, EarlyView.
Copper binding triggers structural changes that expose a reactive disulphide bridge, enabling intrinsic Cu(II) reduction in folded proteins. SAXS, XAS, and QM/MM simulations reveal how globular proteins such as HSA and SOD1 employ disulphide‐mediated dynamics to modulate site accessibility and control copper redox chemistry.
Rebecca Sternke‐Hoffmann   +9 more
wiley   +1 more source

Antioxidant activity as a response to cadmium pollution in three durum wheat genotypes differing in salt-tolerance

open access: yesOpen Chemistry, 2020
Durum wheat is commonly used in various food industry industries and cultivated worldwide. A serious problem with the species cultivation is its capability to accumulate cadmium (Cd) in the grains.
Pastuszak Jakub   +6 more
doaj   +1 more source

The impact of cadmium stress on the ascorbate-glutathione pathway and ascorbate regeneration in tea plants

open access: yesBiologia Plantarum, 2023
Ascorbic acid (AsA) and glutathione (GSH) contribute to defense responses under abiotic stresses. The present study explored the ascorbate-glutathione cycle and ascorbate regeneration under high concentration (30 mM) of cadmium in the tea plant (Camellia
H.B. WANG   +7 more
doaj   +1 more source

Oxidative Stress Associated with Chilling Injury in Immature Fruit: Postharvest Technological and Biotechnological Solutions [PDF]

open access: yes, 2017
Immature, vegetable-like fruits are produced by crops of great economic importance, including cucumbers, zucchini, eggplants and bell peppers, among others. Because of their high respiration rates, associated with high rates of dehydration and metabolism,
Carvajal Moreno, Fátima   +5 more
core   +1 more source

Arabidopsis thaliana dehydroascorbate reductase 2 : conformational flexibility during catalysis [PDF]

open access: yes, 2017
Dehydroascorbate reductase (DHAR) catalyzes the glutathione (GSH)-dependent reduction of dehydroascorbate and plays a direct role in regenerating ascorbic acid, an essential plant antioxidant vital for defense against oxidative stress.
Bodra, Nandita   +8 more
core   +1 more source

Theranostic nanoplatform for high‐performance dual‐modal magnetic resonance imaging‐guided therapy of orthotopic hepatocellular carcinoma

open access: yesBMEMat, EarlyView.
This article introduces a biomimetic Mn‐doped polydopamine nanoplatform (HAMM NPs) coated with cancer cell membranes. It enables targeted hepatocellular carcinoma theranostics via T1/T2 dual‐mode magnetic resonance imaging and tumor microenvironment‐triggered sonodynamic therapy/chemodynamic therapy, achieving potent antitumor efficacy in subcutaneous ...
Jiayin Lin   +7 more
wiley   +1 more source

Calcium and L-histidine effects on ascorbate-glutathione cycle components under nickel-induced oxidative stress in tomato plants

open access: yesBiologia Plantarum, 2014
The effects of NiSO4, calcium, and L-histidine (His) on the components of ascorbate-glutathione cycle, antioxidant enzymes and lipid peroxidation in a tomato cultivar Early Urbana Y was investigated.
Z. Asrar   +4 more
doaj   +1 more source

Desulfovibrio‐Hydrogen Sulfide Mediates Capsaicin‐Induced Oxidative Stress and Gut Inflammation via TXNIP/NLRP3 Pathway

open access: yesFood Bioengineering, EarlyView.
ABSTRACT The intake of capsaicin can disrupt the gut microecology and impact health, yet its underlying mechanism is not fully elucidated. This study, by establishing capsaicin‐induced human microbiota‐associated (HMA) mouse models revealed the molecular mechanism by which capsaicin perturbs the gut microbiota and metabolites, leading to intestinal ...
Liangliang Zhu   +10 more
wiley   +1 more source

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