Results 81 to 90 of about 32,132 (230)

Role of the Ascorbate-Glutathione Cycle of Mitochondria and Peroxisomes in the Senescence of Pea Leaves [PDF]

Plant Physiology, 1998
Abstract We investigated the relationship between H2O2 metabolism and the senescence process using soluble fractions, mitochondria, and peroxisomes from senescent pea (Pisum sativum L.) leaves. After 11 d of senescence the activities of Mn-superoxide dismutase, dehydroascorbate reductase (DHAR), and glutathione reductase (GR) present in ...
, Jimenez, , Hernandez, , Pastori, , del Rio LA, , Sevilla   +4 more
openaire   +2 more sources

Salt‐induced nutritional and metabolic shifts in halophytes: implications for food security

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Plant species vary in their response to salinity: some crops show a degree of salt tolerance, while halophytes – whether wild or cultivated – are characterized by a high capacity to thrive under saline conditions. Halophytes are considered a source of valuable secondary metabolites with potential economic value, yet they might also produce ...
Giulia Atzori, Pedro Garcia Caparros, Antonella Castagna, Luisa Custódio, Valentina Lazazzara, Claus Krogh Madsen, Felicia Menicucci, Maria João Rodrigues, Katalin Solymosi, Jose Ramon Acosta Motos   +9 more
wiley   +1 more source

The invertebrate Caenorhabditis elegans biosynthesizes ascorbate. [PDF]

, 2015
l-Ascorbate, commonly known as vitamin C, serves as an antioxidant and cofactor essential for many biological processes. Distinct ascorbate biosynthetic pathways have been established for animals and plants, but little is known about the presence or ...
Adler, Lital N, Budenholzer, Lauren M, Clarke, Steven G, Patananan, Alexander N, Pedraza, Maria E, Torres, Eric R   +5 more
core   +2 more sources

Involvement of Ascorbate-Glutathione Cycle in Senescence of Stored Broccoli (Brassica oleracea L.).

Engei Gakkai zasshi, 2001
Changes in reducing substances and enzymes involved in the ascorbate-glutathione cycle were determined in senescing broccoli (Brassica oleracea L.). Levels of L-ascorbic acid and reduced glutathione decreased greatly in senescing of broccoli during storage at 15°C, whereas the NADPH content increased gradually.
Naoki Yamauchi, Akihiro Kusabe
openaire   +2 more sources

Ecotoxicological Evaluation of Organic Sunscreens Used Worldwide, Alone and in Mixture, on Terrestrial Plants

Environmental Toxicology, EarlyView.
ABSTRACT The environmental hazards of sunscreens are discussed worldwide. However, there are few ecotoxicological studies on these compounds alone for edaphic organisms, and none for their mixtures. Avobenzone (1 and 10 ng/L), octocrylene (10 and 100 μg/L), and oxybenzone (2 and 20 μg/L), alone and in binary combinations (between the lowest and the ...
Diego Espirito Santo, Edson Araújo de Almeida, Elisângela Dusman, A. C. Downs, Regiane da Silva Gonzalez, Osvaldo Valarini Junior, Ana Paula Peron   +6 more
wiley   +1 more source

Implication of peroxisomes and mitochondria in the halophyte Cakile maritima tolerance to salinity stress

Biologia Plantarum, 2019
The role of mitochondria and peroxisomes in the tolerance of the halophyte Cakile martima to salt stress was studied. The plants were subjected to 0, 100, and 200 mM NaCl for 5 weeks.
N. Ben Amor, A. Jimenez, M. Boudabbous, F. Sevilla, C. Abdelly   +4 more
doaj   +1 more source

High temperature inhibits ascorbate recycling and light stimulation of the ascorbate pool in tomato despite increased expression of biosynthesis genes. [PDF]

PLoS ONE, 2013
Understanding how the fruit microclimate affects ascorbate (AsA) biosynthesis, oxidation and recycling is a great challenge in improving fruit nutritional quality.
Capucine Massot, Doriane Bancel, Félicie Lopez Lauri, Vincent Truffault, Pierre Baldet, Rebecca Stevens, Hélène Gautier   +6 more
doaj   +1 more source

Jasmonates enhance plants tolerance grown in Cd‐contaminated environments: A comprehensive overview

Annals of Applied Biology, EarlyView.
Jasmonates (JAs) enhance plant tolerance to cadmium (Cd) stress by activating antioxidant defences but may reduce Cd uptake, limiting their effectiveness for phytoremediation. This review compiles studies that evaluated the effects of JA application on plants grown in Cd‐contaminated environments. Abstract Cadmium (Cd) is a toxic heavy metal and one of
Raja Yamma Rodrigues Souza, Cristiano Soares, Daniel Baron   +2 more
wiley   +1 more source

The competitive interplay of 12‐oxophytodienoic acid (OPDA), protein thiols, and glutathione

The FEBS Journal, EarlyView.
12‐Oxophytodienoic acid (OPDA) is a phytohormone involved in plant growth and stress defense. Due to its cyclopentenone moiety, OPDA can form Michael adducts with thiol‐containing compounds such as glutathione and cysteine residues of proteins, resulting in alterations of the cellular redox regulatory network.
Madita Knieper, Ruben Schwarz, Lara Vogelsang, Jens Sproß, Armağan Kaya, Maike Bittmann, Harald Gröger, Andrea Viehhauser, Karl‐Josef Dietz   +8 more
wiley   +1 more source

STRAWBERRY (FRAGARIA X ANANASSA DUCH) LEAF ANTIOXIDATIVE RESPONSE TO BIOSTIMULATORS AND REDUCED FERTILIZATION WITH N AND K [PDF]

Poljoprivreda, 2010
Strawberry cultivar Elsanta was grown in peat based substrate in a green house. Full dose and 50% reduced nitrogen and potassium fertilization were applied during fruit bearing period in spring, along with biostimulators Viva®, Megafol® and their ...
Marija Špoljarević, Ivna Štolfa, Miroslav Lisjak, Aleksandar Stanisavljević, Tomislav Vinković, Dejan Agić, Nada Parađiković, Tihana Teklić, Meri Engler, Katica Klešić   +9 more
doaj