Riparian tree species are thought to be sensitive the more frequent and intensive drought heat events that projected occur in future. However, compared waterlogging, information about responses of these water limitation is still scare. Black alder (Alnus glutinosa L.) a riparian with significant ecological economic importance Europe. In present study, we investigated physiological black differe...

Heavy metal pollution is one of the major agronomic challenges. Tungsten (W) exposure leads to its accumulation in plants, which turn reduces plant growth, inhibits photosynthesis and induces oxidative damage. In addition, predicted increase CO2 could boost growth under both optimal heavy stress conditions. The aim present study was investigate effect W on photosynthetic parameters, redox statu...

Abstract Drought is a major abiotic stress, affecting the metabolism, growth, and productivity of plants worldwide. Therefore, this study aimed/hypothesized to investigate ameliorative effects biochar rhizobacteria in drought-damaged Brassica napus L. genotypes. The were divided into two groups based on drought stress employment (15 days 30 days). Both then treated with PGPR, biochar, their co-...

Dehydroascorbate and traces of ascorbate were present apoplastically in living spruce (Picea abies) twigs. Since the proposed apoplastic ascorbate degradation pathway contains several steps that possibly generate H(2)O(2), the effects of ascorbate and some of its degradation products were tested on apoplastic H(2)O(2) concentrations in a cell culture of P. abies as a model and on non-enzymic H(...

Oxidised low density lipoprotein (LDL) may be involved in the pathogenesis of atherosclerosis. We have therefore investigated the mechanisms underlying the antioxidant/pro-oxidant behavior of dehydroascorbate, the oxidation product of ascorbic acid, toward LDL incubated with Cu(2+) ions. By monitoring lipid peroxidation through the formation of conjugated dienes and lipid hydroperoxides, we sho...

Heavy metals are the cause of major abiotic stresses in plants and a principal contributor to environmental pollution in recent decades. This study investigated the effects of exogenous hydrogen sulfide on the ascorbate-glutathione cycle in the leaves of coriander seedlings under copper stress. Results showed that copper stress not only reduced APX and GR activities but also decreased leaf AsA,...

Water stress is one of the most critical abiotic stresses that restricts growth, development, and alters physiological and biochemical mechanisms of plant. The effects of long-term water shortage-induced oxidative stress on morphophysiological parameters, proline metabolic genes, and artemisinin content were studied in Artemisia annua L. under greenhouse conditions. Plant growth, biomass accumu...

Formation of small and highly reactive oxygen species (ROS) is normal phenomena in living cells. The Reactive Oxygen Species cover free radical such as superoxide (O2 ̅ ), hydroxyl (OH), perhydroxy (HO2 ̅ ) and alkoxy (RO) and non-radicals like, hydrogen peroxide (H2O2) and singlet oxygen ( O2). Their formation and reactivity is well established and found to be tightly regulated. ROS level exceed...

The role of the redox state of the apoplast in hormone responses, signaling cascades, and gene expression was studied in transgenic tobacco (Nicotiana tabacum) plants with modified cell wall-localized ascorbate oxidase (AO). High AO activity specifically decreased the ascorbic acid (AA) content of the apoplast and altered plant growth responses triggered by hormones. Auxin stimulated shoot grow...