Abstract
While it is widely accepted that reactive oxygen species (ROS) are common players in developmental processes and a large number of adaptations to abiotic and biotic stresses in plants, we still do not know a lot about ROS level control at cellular or organelle level. One major problem that makes ROS hard to quantify and even to identify is their short lifetime. A promising technique that helps to understand ROS level control in planta is the electron paramagnetic resonance (EPR) spectroscopy. Application of the spin trapping method and the spin probe technique by this advanced method enables the quantification and identification of specific ROS in different plant tissues, cells or organelles or under different conditions. This mini review summarizes the knowledge using EPR spectroscopy as a method for ROS detection in plants under different stress conditions or during development. This technique allows disentangling the origin of specific ROS and transient alteration in ROS levels that occur by changes in ROS production and scavenging.
Highlights
Reactive oxygen species (ROS) are derivatives of molecular oxygen
The term “reactive oxygen species (ROS)” combines non-radical forms of oxygen such as hydrogen peroxide (H2O2), singlet oxygen (1O2) or ozone (O3), and oxygen-centred radicals such as superoxide anion radicals (O2−) and hydroxyl radicals ( OH). All these kinds of ROS are generated in plants during development or different stresses
All ROS are highly active in terms of oxidative modification of lipids, proteins, DNA and RNA
Summary
Application of the spin trapping method and the spin probe technique by this advanced method enables the quantification and identification of specific ROS in different plant tissues, cells or organelles or under different conditions. This mini review summarizes the knowledge using EPR spectroscopy as a method for ROS detection in plants under different stress conditions or during development. This technique allows disentangling the origin of specific ROS and transient alteration in ROS levels that occur by changes in ROS production and scavenging
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