Effect of exogenous catechin and salicylic acid on rice productivity under ozone stress: the role of chlorophyll contents, lipid peroxidation, and antioxidant enzymes

2020 ◽  
Vol 27 (20) ◽  
pp. 25774-25784
Author(s):  
Piyatida Kittipornkul ◽  
Chairat Treesubsuntorn ◽  
Paitip Thiravetyan
Keyword(s):  
Lipid Peroxidation ◽  
Salicylic Acid ◽  
Antioxidant Enzymes ◽  
Chlorophyll Contents ◽  
Rice Productivity ◽  
Ozone Stress

scholarly journals Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ramadan Shemi ◽  
Rui Wang ◽  
El-Sayed M. S. Gheith ◽  
Hafiz Athar Hussain ◽  
Saddam Hussain ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Antioxidant Enzymes ◽  
Drought Stress ◽  
Gas Exchange ◽  
Drought Tolerance ◽  
Glycine Betaine ◽  
Field Capacity ◽  
Yield Attributes ◽  
Chlorophyll Contents ◽  
Water Conditions

AbstractDrought is one of the major environmental stresses that negatively affect the maize (Zea mays L.) growth and production throughout the world. Foliar applications of plant growth regulators, micronutrients or osmoprotectants for stimulating drought-tolerance in plants have been intensively reported. A controlled pot experiment was conducted to study the relative efficacy of salicylic acid (SA), zinc (Zn), and glycine betaine (GB) foliar applications on morphology, chlorophyll contents, relative water content (RWC), gas-exchange attributes, activities of antioxidant enzymes, accumulations of reactive oxygen species (ROS) and osmolytes, and yield attributes of maize plants exposed to two soil water conditions (85% field capacity: well-watered, 50% field capacity: drought stress) during critical growth stages. Drought stress significantly reduced the morphological parameters, yield and its components, RWC, chlorophyll contents, and gas-exchange parameters except for intercellular CO2 concentration, compared with well water conditions. However, the foliar applications considerably enhanced all the above parameters under drought. Drought stress significantly (p < 0.05) increased the hydrogen peroxide and superoxide anion contents, and enhanced the lipid peroxidation rate measured in terms of malonaldehyde (MDA) content. However, ROS and MDA contents were substantially decreased by foliar applications under drought stress. Antioxidant enzymes activity, proline content, and the soluble sugar were increased by foliar treatments under both well-watered and drought-stressed conditions. Overall, the application of GB was the most effective among all compounds to enhance the drought tolerance in maize through reduced levels of ROS, increased activities of antioxidant enzymes and higher accumulation of osmolytes contents.

Role of ABA, salicylic acid, calcium and hydrogen peroxide on antioxidant enzymes induction in wheat seedlings

Plant Science ◽  
2005 ◽  
Vol 169 (3) ◽  
pp. 559-570 ◽  
Author(s):  
Sarika Agarwal ◽  
R.K. Sairam ◽  
G.C. Srivastava ◽  
Aruna Tyagi ◽  
R.C. Meena
Keyword(s):  
Hydrogen Peroxide ◽  
Salicylic Acid ◽  
Antioxidant Enzymes ◽  
Wheat Seedlings

The effects of ochratoxin A on lipid peroxidation and antioxidant enzymes: a protective role of melatonin

2004 ◽  
Vol 20 (4) ◽  
pp. 213-219 ◽  
Author(s):  
M. Soyöz ◽  
N. Özçelik ◽  
I˙. Kılınç ◽  
I˙. Altuntas¸
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Enzymes ◽  
Ochratoxin A ◽  
Protective Role

scholarly journals Atrazine and Mesotrione-Induced Oxidative Stress and Impact on Antioxidant Enzymes and Chlorophyll Contents in Bermudagrass

2018 ◽  
Vol 36 ◽  
Author(s):  
Y. WANG ◽  
J. YU ◽  
B. ZHOU ◽  
S. SAPKOTA ◽  
F. WEI ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Enzymes ◽  
Cynodon Dactylon ◽  
Enzymatic Antioxidants ◽  
Oxygen Species ◽  
Chlorophyll B ◽  
Glutathione S Transferase ◽  
Chl A ◽  
Chlorophyll Contents ◽  
Cellular Constituent

ABSTRACT: The effect of atrazine, mesotrione, and joint activity of atrazine plus mesotrione on pigment, lipid peroxidation, and antioxidant enzyme activity was studied. Atrazine and mesotrione treatments significantly reduced chlorophyll a (Chl a), chlorophyll b (Chl b), carotenoid concentrations, and protein content in bermudagrass (Cynodon dactylon L.) plants, whereas they significantly enhanced lipid peroxidation. The treatment of atrazine plus mesotrione caused greater phototoxic effect on bermudagrass than either herbicide alone, which was evident from the significantly decreased membrane stability noted as a function of the enhanced singlet oxygen and malondialdehyde (MDA) contents, as well as from the greater reduction in Chl a, Chl b, and carotenoid contents. Although bermudagrass activated the antioxidant enzymes catalase (CAT), peroxidase (POD), and glutathione S-transferase (GST), it was significantly injured after the herbicide treatments. Thus, results suggested that the enzymatic and non-enzymatic antioxidants of bermudagrass was overloaded after the treatment of atrazine plus mesotrione, and the reactive oxygen species (ROS) subsequently caused lipid peroxidation, pigment and protein degradation, as well as other cellular constituent damage.

The effects of diazinon on lipid peroxidation and antioxidant enzymes in rat heart and ameliorating role of vitamin E and vitamin C

2006 ◽  
Vol 22 (6) ◽  
pp. 455-461 ◽  
Author(s):  
O. Akturk ◽  
H. Demirin ◽  
R. Sutcu ◽  
N. Yilmaz ◽  
H. Koylu ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Enzymes ◽  
Vitamin E ◽  
Vitamin C ◽  
Rat Heart

scholarly journals Regulation of Postharvest Tomato Fruit Ripening by Endogenous Salicylic Acid

2021 ◽  
Vol 12 ◽  
Author(s):  
Chunoti Changwal ◽  
Tushita Shukla ◽  
Zakir Hussain ◽  
Neera Singh ◽  
Abhijit Kar ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Salicylic Acid ◽  
Carboxylic Acid ◽  
Fruit Ripening ◽  
Tomato Fruit ◽  
Stability Index ◽  
Acid Oxidase ◽  
Tomato Fruit Ripening ◽  
Lycopene Content

Exogenous application of salicylic acid (SA) has been known for delaying ripening in many fruit and vegetables. But the function of endogenous SA in relation to postharvest fruit performance is still unexplored. To understand the role of endogenous SA in postharvest fruit ripening of tomato, 33 tomato lines were examined for their endogenous SA content, membrane stability index (MSI), and shelf life (SL) at turning and red stages of tomato fruit ripening. Six tomato lines having contrasting shelf lives from these categories were subjected further for ethylene (ET) evolution, 1-aminocyclopropane-1-carboxylic acid synthase (ACS), 1-aminocyclopropane-1-carboxylic acid oxidase (ACO), polygalacturonase (PG), pectin methyl esterase (PME), antioxidant assays and lipid peroxidation. It was found that high endogenous SA has a direct association with low ET evolution, which leads to the high SL of fruit. High lycopene content was also found to be correlated with high SA. Total antioxidants, PG, and PME decreased and lipid peroxidation increased from turning to red stage of tomato fruit development. Furthermore, these lines were subjected to expression analysis for SA biosynthesis enzymes viz. Solanum lycopersicum Isochorismate Synthase (SlICS) and SlPAL. Real-time PCR data revealed that high SL lines have high SlPAL4 expression and low SL lines have high SlPAL6 expression. Based on the results obtained in this study, it was concluded that endogenous SA regulates ET evolution and SL with the aid of the antioxidative defense system, and SlPAL4 and SlPAL6 genes play significant but opposite roles during fruit ripening.

The dynamics of indicators of peroxide metabolism in patients with cicatricial skin deformations in combination with metabolic syndrome in complex use of physiotherapeutic treatment methods and drinking mineral waters

2021 ◽  
pp. 45-55
Author(s):  
K.V. Kazatseva ◽  
S.N. Nagornev ◽  
V.K. Frolkov ◽  
E.V. Gusakova
Keyword(s):  
Metabolic Syndrome ◽  
Lipid Peroxidation ◽  
Antioxidant Enzymes ◽  
Mineral Water ◽  
Effective Means ◽  
Mineral Waters ◽  
Combined Use ◽  
Pathogenetic Therapy ◽  
Peroxidation Processes

The article analyzes the role of lipid peroxidation processes in the pathogenesis of cicatricial skin changes, including in patients with metabolic syndrome. Baseline indices of LPO processes and antioxidant enzymes in patients with metabolic syndrome indicate the development of oxidative stress and accumulation of cytotoxic carbonyl products. The course use of a combination of fermenkol phonophoresis, fractional photothermolysis and mineral water «Essentuki №17» in patients with cicatricial changes in the skin and metabolic syndrome is accompanied by a decrease in the severity of insulin resistance and lipid peroxidation processes. The use of a complex of physiotherapeutic factors and drinking mineral water contributes to an increase in the coefficient of antioxidant protection by 54%. The revealed dynamics of the assessed parameters is realized due to the elimination of molecular inhibitors of antioxidant enzymes in conditions of an increase in the receptor sensitivity of tissues to insulin and a decrease in the level of glycemia. The manifestation of antioxidant activity in the combined use of physiotherapeutic methods and mineral waters for drinking purposes allows this technology to be considered as an effective means of pathogenetic therapy of cicatricial deformities of the skin in combination with metabolic syndrome.

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