Can rhizobacteria in the soil help plants' systemic resistance to infection?
Tag - Oxidative stress
William Salter
OsDCL1 activation compromises resistance against rice blast fungus
Rice blast, caused by the pathogen Magnaporthe oryzae, is the most important fungal disease of cultivated rice (Oryza sativa). Salvador-Guirao et al. investigate the contribution of DCL1, the core component for microRNA...
Alex Assiry
Physiological basis of miscanthus chilling tolerance
The biomass crop Miscanthus x giganteus has a high chilling tolerance for a C4 plant, allowing for a longer productive growing season in temperate climates. The understanding of the mechanisms that underlie chilling...
botanyone
Zinc stress and ROS and RNS metabolism of roots
Zinc (Zn) is an essential micronutrient naturally present in soils, but anthropogenic activities can lead to accumulation in the environment and resulting damage to plants. Heavy metals such as Zn can induce oxidative...
Over-expression of Trxo1 and cell viability under H2O2 stress
Ortiz-Espín et al. treat over-expressing PsTrxo1 tobacco (Nicotiana tabacum) BY-2 cells with H2O2 and find a significant delay in cell death compared to controls, which may in part be due to a decreased content of...
Organelle-originated ROS and endoplasmic reticulum responses
Ozgur et al. induce the formation of reactive oxygen species (ROS) in chloroplasts, mitochondria and peroxisomes of Arabidopsis thaliana and find that relatively low concentrations of ROS are more effective for...
Diurnal changes in algal xanthophyll cycle and H2O2 concentration
High light activates the xanthophyll cycle and increases the production of reactive oxygen species (ROS), such as hydrogen peroxide (H2O2), but the interrelationships between these parameters is poorly understood. Using...
Peroxisomes and regulation of ROS/RNS signalling (Review)
Sandalio and Romero-Puertas review the metabolism of reactive oxygen and nitrogen species (ROS and RNS) in peroxisomes and their contribution to the regulation of plant development and acclimation to stress conditions.
Selenium toxicity in plants (Botanical Briefing)
Van Hoewyk provides a framework on plant selenium toxicity, showing that both malformed selenoproteins and oxidative stress drive selenium-induced stress.
Seed ageing at elevated oxygen pressure
Subjecting seeds to elevated oxygen concentrations may provide a novel method for studying ageing processes. Groot et al. test this hypothesis by storing dry seed of barley (Hordeum vulgare), cabbage (Brassica...
