• Biochemistry bioassays confirmed the involvement of monooxygenase enzyme, carboxylesterase, superoxide dismutase and peroxidase in multi-insecticide resistance mechanism. (preprints.org)
  • The activity of antioxidant enzymes (catalase, superoxide dismutase, peroxidase, ascorbate-peroxidase and glucose-6-phosphate dehydrogenase) and the amount of non-enzymatic compounds (malondialdehyde and thiol) significantly decerased in the third and the fourth instar larvae of H. variegata on the micronutrient treatments compared to control. (ac.ir)
  • The increase of superoxide dismutase activity can indicate the occurrence of oxidative stress in the body of the third and the fourth instar larvae of predator H. variegata could be assigned to the accumulation of H2O2 in the body of M. persicae under the influence of the defensive secondary metabolites, which led to increase the activity of catalase and peroxidase. (ac.ir)
  • production rate, H 2 O 2 content and membrane permeability, maintained high activities of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX), and reduced the increase in activities of lipase, phospholipase D (PLD) and lipoxygenase (LOX). (biomedcentral.com)
  • Heat shock proteins (HSPs) and antioxidant enzymes are the two major classes of functional proteins that are induced during HSR. (frontiersin.org)
  • In this study, effect of foliar application of micronutrient fertilizers included iron, zinc, copper and manganese were investigated on the activity of antioxidant enzymes, amount of antioxidant non-enzymatic compounds and storage-macromolecules (protein, glycogen and triglyceride) of the third and fourth instar larvae of H. variegata fed on M. persicae. (ac.ir)
  • Effects of biofertilizer and nano Zn-Fe oxide on physiological traits, antioxidant enzymes activity and yield of wheat (Triticum aestivum L.) under salinity stress. (ac.ir)
  • These results indicated that MAP in combination with low temperature storage reduced lignification of minimally processed WBS, which was closely associated with maintenance of energy status and enhanced activities of antioxidant enzymes, as well as reduced alleviation of membrane damage caused by ROS. (biomedcentral.com)
  • Mn deficiency induced the oxidative stress for increase the H 2 O 2 and MDA content in leaves of plants and reduce the activity of antioxidant enzymes and total phenols causing damage to quantum efficiency of photosystem II and pigment content. (biomedcentral.com)
  • Here, the effects of solutions with different concentrations of NaCl on the organic osmolytes, ion accumulation, and antioxidant enzyme activity of hibiscus seedling leaves were determined. (mdpi.com)
  • 2016) also suggested that H2O2 molecules play dual roles in plant physiological and developmental processes. (researchgate.net)
  • Antioxidant defense response of the green peach aphid, Myzus persicae against secondary metabolites of the host plants cumin, anise, and coriander. (ac.ir)
  • In addition, stress indicator compounds, including malondialdehyde (MDA) contents and H2O2, were remarkably alleviated by 54.21% and 47.03%, respectively. (bvsalud.org)
  • An early study by Narimanov (2000) reported enhanced germination, emergence and development of seedlings using a short seed soaking treatment with H2O2 in a wide variety of crops including corn (Zea mays L.), beans (Phaseolus sp. (researchgate.net)
  • Polyphenol oxidase and peroxidase in apple leaves inoculated with a virulent or an avirulent strain for Erwinia amylovora . (ac.ir)
  • tested 24-h seed pre-treatments with H2O2 with 50 mM being optimal with improved seed germination, seedling vigour and growth in corn, squash (Cucurbita pepo L.) and tomato (Solanum lycopersicum L.). Increased germination and seedling growth of peas (Pisum sativum L. 'Alaska') was shown by Barba-Espin et al. (researchgate.net)
  • Relatively less known are the effects of H2O2 in irrigation water on seed germination, seedling growth and establishment. (researchgate.net)
  • showed that the effect of H2O2 on corn seed germination was significantly greater than for seed treated with aerated water but no H2O2. (researchgate.net)
  • The enhanced effects on germination with H2O2 have a) been reported for seed with pathogenic infestations (Szopniska, 2014) i.e. a biocidal effect, and b) mediated through the oxidation of germination inhibitors present in the seed coat or/and in the pericarp, i.e. a seed treatment effect. (researchgate.net)
  • Germination of selected vegetable seeds including corn (Zea mays L.), squash (Cucurbita pepo L.), and tomato (Solanum lycopersicum L.) was studied in water with different concentrations of hydrogen peroxide (H2O2) solution ranging from 0, 0. (researchgate.net)
  • The metabolomics analyses further reveal that the mutants accumulate higher amounts of α-and γ-tocopherols, which are important antioxidants for protection against oxidative damage. (frontiersin.org)
  • glutathione reductase (GR) and PPO in Shankar, while ascorbate peroxidase (APOX) was present in both cultivars. (bvsalud.org)
  • Under cold treatments, the tested cultivars with higher growth rate had a higher level of hydrogen peroxide (H 2 O 2 ) in the shoots but had a lower level in the roots. (springeropen.com)
  • Lemon pectin extracted along with water-soluble flavonoids and other phytochemicals from citrus industry's waste lemon peel via hydrodynamic cavitation in water, directly at pre-industrial scale and further isolated via freeze drying, shows exceptionally high antioxidant and non-cytotoxic activity. (preprints.org)
  • However, some of them such as those from spices and herbs (oregano, thyme, dittany, marjoram, lavender, rosemary) have limited applications in spite of their high antioxidant activity, as they impart a characteristic herb ¯avour to the food, and deodorization steps are required (Reglero et al. (dadospdf.com)
  • Methods: Thus, we examined the effect of exogenous salicylic acid (SA) and alpha-tocopherol (TP) (100 mg/L) on the morphophysio-biochemical responses of two wheat cultivars (Pirsabak-15 and Shankar) to salinity stress (0 and 40 mM). (bvsalud.org)
  • Exogenous myo-inositol significantly decreased H2O2, membrane damage and proline levels and AP (except for 5 µM) and CAT activity, compared with untreated plants. (deepdyve.com)
  • SA and TP could improve the salinity tolerance by improving growth and photosynthetic pigments and reducing MDA and H2O2. (bvsalud.org)
  • Conclusions: Consequently, we suggest that SA and TP could have enhanced the salinity tolerance of our selected wheat cultivars by modulating their physiological mechanisms in a manner that resulted in improved growth. (bvsalud.org)
  • Future molecular studies can contribute to a better understanding of the mechanisms by which SA and TP regulate the selected wheat cultivars underlying salinity tolerance mechanisms. (bvsalud.org)
  • ascorbate peroxidase) and as well as regulating the key stress-responsive genes (OsSOD1, OsPOD1, OsCAT2, OsAPX1), thereby reinstate cellular membrane integrity and confer tolerance to ultrastructural damages under Cd-induced phytotoxicity. (bvsalud.org)
  • Nevertheless, the study of salt stress on rice root by Lin and Kao ( 2001a ) revealed an increase in ionically bound cell-wall peroxidase activity after NaCl treatment in rice roots, which resulted in H 2 O 2 generation and thus inhibited the growth of rice roots. (springeropen.com)
  • Thus the present study aimed for quickly identifying reliable physiological markers for drought susceptibility through evaluation of physiological and biochemical changes in leaves of two contrasting mungbean (Vigna radiata L. Wilczek) cultivars i.e. (scirp.org)
  • The physiological screening and the cultivar identification are establishing theoretical and practical foundation for drought-tolerant breeding of mungbean. (scirp.org)
  • For agricultural tree crops, cultivars must be carefully selected for each growing region in order to provide a sufficient amount of cold for regular flowering and reliable fruit or nut production ( Luedeling and Brown, 2011 ). (frontiersin.org)
  • The aim of this review, after presenting general aspects about natural antioxidants, is to focus on the extraction of antioxidant compounds (mainly polyphenols) from agricultural and industrial wastes, as well as to summarize available data on the factors a ecting their antioxidant activity and stability, and, in some cases, the reported major active compounds identi®ed. # 2001 Elsevier Science Ltd. All rights reserved. (dadospdf.com)
  • Parameters like leaf area, relative leaf water content, chlorophyll content, chlorophyll stability indices in both the cultivars were decreased with the increasing magnitude of stress. (scirp.org)
  • Polyphenols are the major plant compounds with antioxidant activity, although they are not the only ones. (dadospdf.com)
  • In addition, other biological properties such as anticarcinogenicity, antimutagenicity, antiallergenicity and antiaging activity have been reported for natural and synthetic antioxidants. (dadospdf.com)
  • Methods for determining antioxidant activity. (dadospdf.com)
  • Relation between phenolic content and antioxidant activity. (dadospdf.com)
  • Potential antioxidant activity from residual wastes. (dadospdf.com)
  • Results: Both Pirsabak-15 and Shankar cultivars were negatively affected by salinity stress. (bvsalud.org)
  • Abstract The growing interest in the substitution of synthetic food antioxidants by natural ones has fostered research on vegetable sources and the screening of raw materials for identifying new antioxidants. (dadospdf.com)