Results 21 to 30 of about 21,778 (164)

Morphological and Physiological Responses of In Vitro-Grown Cucurbita sp. Landraces Seedlings under Osmotic Stress by Mannitol and PEG

open access: yesHorticulturae, 2022
Screening and identification of tolerant genotypes using osmotic materials under in vitro culture could be rapid, easy, and even accurate. In this research, three Iranian landraces of Cucurbita sp.
Rana Panahi Tajaragh   +7 more
doaj   +1 more source

Relevant Membrane Transport Proteins as Possible Gatekeepers for Effective Pharmacological Ascorbate Treatment in Cancer

open access: yesAntioxidants, 2023
Despite the increasing number of newly diagnosed malignancies worldwide, therapeutic options for some tumor diseases are unfortunately still limited.
Christian Leischner   +6 more
doaj   +1 more source

Ascorbate-glutathione cycle and thioredoxin system are involved in nitric oxide alleviating excess nitrate stress in tomato seedlings

open access: yes, 2023
Nitric oxide (NO) plays an important role in plant growth, development, and stress responses. The exogenous NO donor sodium nitroprusside (SNP) increased the plant height, root length, and biomass of tomato seedlings under nitrate stress, especially 100 ...
Kunzhi Li (12804297)   +4 more
core   +1 more source

Evolution of substrate specificity in the Nucleobase-Ascorbate Transporter (NAT) protein family [PDF]

open access: yes, 2018
L-ascorbic acid (vitamin C) is an essential metabolite in animals and plants due to its role as an enzyme co-factor and antioxidant activity. In most eukaryotic organisms, L-ascorbate is biosynthesized enzymatically, but in several major groups ...
Anezia Kourkoulou   +2 more
core   +1 more source

Comparative Analysis of Antioxidant Accumulation under Cold Acclimation, Deacclimation and Reacclimation in Winter Wheat

open access: yesPlants, 2022
Low temperature during cold acclimation (CA) leads to the accumulation of detrimental reactive oxygen species (ROS) in plant tissues, which are scavenged by antioxidants, such as ascorbate and glutathione.
Gabija Vaitkevičiūtė   +3 more
doaj   +1 more source

Reduced Plasma Ascorbate and Increased Proportion of Dehydroascorbic Acid Levels in Patients Undergoing Hemodialysis

open access: yesLife, 2021
Ascorbate functions as an electron donor and scavenges free radicals. Dehydroascorbic acid (DHA), the oxidized form of ascorbate, is generated as a result of these reactions.
Yuta Doshida   +7 more
doaj   +1 more source

Metabolomic profiling identifies biomarkers and metabolic impacts of surgery for colorectal cancer

open access: yesFrontiers in Surgery, 2022
BackgroundColorectal cancer (CRC) is one of the most common malignant tumors with recurrence and metastasis after surgical resection. This study aimed to identify the physiological changes after surgery and explore metabolites and metabolic pathways with
Feng Zhuang   +10 more
doaj   +1 more source

Intravenous Vitamin C for Cancer Therapy – Identifying the Current Gaps in Our Knowledge

open access: yesFrontiers in Physiology, 2018
The use of intravenous vitamin C (IVC) for cancer therapy has long been an area of intense controversy. Despite this, high dose IVC has been administered for decades by complementary health care practitioners and physicians, with little evidence base ...
Anitra C. Carr, John Cook
doaj   +1 more source

Pyrophosphate levels strongly influence ascorbate and starch content in tomato fruit

open access: yesFrontiers in Plant Science, 2013
Ascorbate (vitamin C) deficiency leads to low immunity, scurvy, and other human diseases and is therefore a global health problem. Given that plants are major ascorbate sources for humans, biofortification of this vitamin in our foodstuffs is of ...
Sonia eOsorio   +5 more
doaj   +1 more source

Integration of MsrB1 and MsrB2 in the Redox Network during the Development of Orthodox and Recalcitrant Acer Seeds

open access: yesAntioxidants, 2020
Two related tree species, Norway maple (Acer platanoides L.) and sycamore (Acer pseudoplatanus L.), produce desiccation-tolerant (orthodox) and desiccation-sensitive (recalcitrant) seeds, respectively.
Ewelina Stolarska   +5 more
doaj   +1 more source

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