Results 31 to 40 of about 142,838 (307)

Proteome readjustments in the apoplastic space of Arabidopsis thaliana ggt1 mutant leaves exposed to UV-B radiation [PDF]

open access: yes, 2015
Ultraviolet-B radiation acts as an environmental stimulus, but in high doses it has detrimental effects on plant metabolism. Plasma membranes represent a major target for ROS generated by this harmful radiation.
ARRIGONI, GIORGIO   +8 more
core   +2 more sources

Functional indicators of response mechanisms to nitrogen deposition, ozone, and their interaction in two Mediterranean tree species [PDF]

open access: yes, 2017
The effects of nitrogen (N) deposition, tropospheric ozone (O3) and their interaction were investigated in two Mediterranean tree species, Fraxinus ornus L. (deciduous) and Quercus ilex L.
Basile, Adriana   +6 more
core   +6 more sources

Oxygen Depletion and the Role of Cellular Antioxidants in FLASH Radiotherapy: Mechanistic Insights from Monte Carlo Radiation-Chemical Modeling

open access: yesAntioxidants
FLASH radiotherapy is a novel irradiation modality that employs ultra-high mean dose rates exceeding 40–150 Gy/s, far surpassing the typical ~0.03 Gy/s used in conventional radiotherapy.
Israth Rabeya   +2 more
doaj   +1 more source

A Systems Biology Study in Tomato Fruit Reveals Correlations between the Ascorbate Pool and Genes Involved in Ribosome Biogenesis, Translation, and the Heat-Shock Response

open access: yesFrontiers in Plant Science, 2018
Changing the balance between ascorbate, monodehydroascorbate, and dehydroascorbate in plant cells by manipulating the activity of enzymes involved in ascorbate synthesis or recycling of oxidized and reduced forms leads to multiple phenotypes.
Rebecca G. Stevens   +20 more
doaj   +1 more source

High-Dose Ascorbate in Combination with Anti-PD1 Checkpoint Inhibition as Treatment Option for Malignant Melanoma

open access: yesCells, 2023
Ascorbate acts as a prooxidant when administered parenterally at high supraphysiological doses, which results in the generation of hydrogen peroxide in dependence on oxygen. Most cancer cells are susceptible to the emerging reactive oxygen species (ROS).
Markus Burkard   +9 more
doaj   +1 more source

Pharmaceutical and personal care products-induced stress symptoms and detoxification mechanisms in cucumber plants. [PDF]

open access: yes, 2018
Contamination of agricultural soils by pharmaceutical and personal care products (PPCPs) resulting from the application of treated wastewater, biosolids and animal wastes constitutes a potential environmental risk in many countries.
Dudley, Stacia   +3 more
core   +1 more source

Cecytb-2, a Cytochrome b561 Homolog, Functions as an Ascorbate-Specific Transmembrane Ferric Reductase at Intestinal Lumens of Caenorhabditis elegans

open access: yesBiomolecules
One of the cytochrome b561 family members in C. elegans, named Cecytb-2, was investigated. Purified recombinant Cecytb-2 showed typical visible absorption spectra, EPR signals, and redox midpoint potentials, very similar to those of human Dcytb, which is
Masahiro Miura   +5 more
doaj   +1 more source

Oxidized Forms of Ergothioneine Are Substrates for Mammalian Thioredoxin Reductase

open access: yesAntioxidants, 2022
Ergothioneine (EGT) is a sulfur-containing amino acid analog that is biosynthesized in fungi and bacteria, accumulated in plants, and ingested by humans where it is concentrated in tissues under oxidative stress.
Kaelyn A. Jenny   +3 more
doaj   +1 more source

Trypanosoma cruzi expresses a plant-like ascorbate-dependent hemoperoxidase localized to the endoplasmic reticulum.

open access: yes, 2002
In most aerobic organisms hemoperoxidases play a major role in H(2)O(2)-detoxification, but trypanosomatids have been reported to lack this activity.
Kelly, John M   +3 more
core   +2 more sources

Carbon fibre composites: integrated electrochemical sensors for wound management [PDF]

open access: yes, 2008
The applicability of employing a carbon fibre mesh as an electrochemical sensing substructure for assessing urate transformations within wound exudates is evaluated.
Abdel-Fattah   +43 more
core   +1 more source

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