The aim of this experiment was to investigate the exogenous application salicylic acid (SA) on morpho-physiological and molecular characteristics Impatiens walleriana plants grown under water deficit stress. Three levels soil contents (95, 85, 75% field capacity; FC) three SA (0, 1, 2 mM) were applied two impatient cultivars (‘Tempo’ ‘Salmon’). results showed that increasing stress negatively a...

Absorption of arsenic (As) by plant root is an essential activity that bridges the soil As concentration and physiological responses which can be monitored soon after exposure to As. In the present study, physiological responses to short exposure to arsenite (AsIII) was compared in two indigenous rice cultivars one adapted to temperate and humid (TH) and the second one to warm and humid (WH) cl...

Plant responses to biotic and abiotic stresses are regulated by salicylic acid (SA), a signaling molecule. The goal of this study was determine the efficacy foliar SA treatments (0.25, 0.50, or 1.00 mM) in reducing salt stress lettuce exposed 100 mM NaCl. Salt-stressed plants given application showed alleviation negative effects salinity, resulting higher growth performance (increases 6%–198%)....

Oxidative stress and the antioxidant response induced by high environmental ammonia (HEA) were investigated in the liver and gills of three freshwater teleosts differing in their sensitivities to ammonia. The highly ammonia-sensitive salmonid Oncorhynchus mykiss (rainbow trout), the less ammonia sensitive cyprinid Cyprinus carpio (common carp) and the highly ammonia-resistant cyprinid Carassius...

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...

The purpose of the current study was to determine possible improvement in soybean plants’ tolerance against vanadium-induced stress response application olive solid waste (OSW) and selenium nanoparticles (Se-NPs), by assessing metabolites plant defense systems. Drawing upon this aim, a pot experiment performed where plants were grown with fertilization treatment (including, control, OSW, Se-NPs...

Few studies have investigated the alkali-based salt resistance aspect of plants. Here, we used 2 pumpkin cultivars (‘Cucurbita ficifolia Bouch.’ and ‘Chuandilong’) to study the growth and physiological response mechanisms of pumpkin to different levels of NaHCO3 stress. After second true leaf development, pumpkin seedlings were treated with varying levels of NaHCO3 stress (0, 30, 60 and 90 mmol...

Cadmium (Cd) brings a devastating health hazard to human being as a serious consequence of agricultural and environmental contamination. We demonstrated the protective effect of silicon (Si) on cadmium (Cd)-stressed rapeseed (Brassica napus L. cv. BINA Sharisha 3) plants through regulation of antioxidant defense and glyoxalase systems. Twelve-day-old seedlings were exposed to Cd stress (0.5 and...

Oxidative damage and antioxidant responses were compared in two cotton cultivars: drought-resistant (CCRI-60) and drought-sensitive (CCRI-27). Cotton seedlings were subjected to PEG-6000 solutions with two different osmotic potentials, and changes in the antioxidant enzyme activities were investigated. Increasing PEG concentration reduced root length and vigor, increased H2O2, malondialdehyde (...