Yellow mosaic virus (YMV) transmitted by whitefly (Bemisia tabaci) causes yellow disease (YMD) in blackgram cultivars only during kharif season but was not observed the same sown spring season. The main objective of present investigation to study cooperative role various antioxidative enzymes such as superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), guaiacol (GPOX), glutat...

The present work describes, for the first time, the changes that take place in the leaf apoplastic antioxidant defenses in response to NaCl stress in two pea (Pisum sativum) cultivars (cv Lincoln and cv Puget) showing different degrees of sensitivity to high NaCl concentrations. The results showed that only superoxide dismutase, and probably dehydroascorbate reductase (DHAR), were present in th...

The ascorbate-glutathione (ASC-GSH) cycle has an important role in defensive processes against oxidative damage generated by drought stress. In this study, the changes that take place in apoplastic and symplastic ASC-GSH cycle enzymes of the leaf and petiole were investigated under drought stress causing leaf rolling in Ctenanthe setosa (Rose.) Eichler (Marantaceae). Apoplastic and symplastic e...

Bangia fuscopurpurea is a widespread intertidal seaweed that commercially cultured in China. This frequently exposed to hyposalinity stress, but little known about the adaptation mechanisms. Ascorbate−glutathione (AsA−GSH) cycle plays important roles many organisms under variety of abiotic including hyposaline stress. In this study, we investigated response key metabolites and enzymes involved ...

Iron nanoparticles (Fe NPs) have a wide array of biological and medical applications. In agriculture, Fe NPs has the potential to be used as an innovative technique alleviate deficiency in various crops, such grape. However, effect on alleviating stresses grapevine are unexplored. The aim this study was evaluate efficiency protecting ‘Asgari’ seedless grape (Vitis vinifera L.) against oxidative...

Mitochondria are the source of reactive oxygen species (ROS) in plant cells and play a central role in the mitochondrial electron transport chain (ETC) and tricarboxylic acid cycle (TCA) cycles; however, ROS production and regulation for seed germination, seedling growth, as well as mitochondrial responses to abiotic stress, are not clear. This study was conducted to obtain basic information on...

Although brassinosteroids (BRs) play crucial roles in plant development and stress tolerance, the mechanisms by which they have these effects are poorly understood. Here, we investigated the possible mechanism of exogenously applied BRs on reactive oxygen species (ROS), antioxidant defence and methylglyoxal (MG) detoxification systems in Ficus concinna seedlings grown under high-temperature (HT...

Understanding how the fruit microclimate affects ascorbate (AsA) biosynthesis, oxidation and recycling is a great challenge in improving fruit nutritional quality. For this purpose, tomatoes at breaker stage were harvested and placed in controlled environment conditions at different temperatures (12, 17, 23, 27 and 31 °C) and irradiance regimes (darkness or 150 µmol m(-2) s(-1)). Fruit pericarp...