Hydrogen peroxide in plants: a versatile molecule of the reactive oxygen species network.

By Lijuan Quan, Boyan Zhang, Wei Shi, Hong-yu Li. Journal of Integrative Plant Biology, 2008

669 citations recorded by the source corpus.

Plants often face the challenge of severe environmental conditions, which include various biotic and abiotic stresses that exert adverse effects on plant growth and development. During evolution, plants have evolved complex regulatory mechanisms to adapt to various environmental stressors. One of the consequences of stress is an increase in the cellular concentration of reactive oxygen species (ROS), which are subsequently converted to hydrogen peroxide (H(2)O(2)). Even under normal conditions, higher plants produce ROS during metabolic processes. Excess concentrations of ROS result in oxidative damage to or the apoptotic death of cells. Development of an antioxidant defense system in plants protects them against oxidative stress damage. These ROS and, more particularly, H(2)O(2,) play versatile roles in normal plant physiological processes and in resistance to stresses. Recently, H(2)O(2) has been regarded as a signaling molecule and regulator of the expression of some genes in cells. This review describes various aspects of H(2)O(2) function, generation and scavenging, gene regulation and cross-links with other physiological molecules during plant growth, development and resistance responses.

Subfields: Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/57c09720f7d47af4c533905372a052c5e09badbd

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Citations in the corpus

Salicylic acid in plant salinity stress signalling and tolerance (2015, background): “Similar to SA, H2O2 (a ROS species) at 389 low concentrations acts as a signalling molecule, inducing tolerance to several biotic and 390 abiotic stresses, but at high concentrations triggers apoptosis-like and autophagic cell death 391 (Love et al. 2008; Quan et al. 2008).”
Reactive oxygen species and antioxidant machinery in abiotic stress tolerance in crop plants. (2010, background): “In aqueous solution, O2 is moderately reactive, but this O2 can further reduced by SOD dismutation to H2O2 [37,45,49,50].”
Exogenous salicylic acid ameliorates short-term drought stress in mustard (Brassica juncea L.) seedlings by up-regulating the antioxidant defense and glyoxalase system (2013, background): “H2O2 leads to oxidative stress (Quan et al. 2008) and it may inactivate enzymes by oxidizing their thiol groups.”
Glutathione in plants: biosynthesis and physiological role in environmental stress tolerance (2017, positive): “The GSH/GSSG ratio and H2O2 perform a signaling role by affecting proteins during transcription, translation, post-translational processes, and the metabolic processes conducted by the proteins (Dietz 2008; Quan et al. 2008).”
Some critical issues in environmental physiology of grapevines: future challenges and current limitations (2010, neutral): “in many biological events (Quan et al. 2008), and the”
Reactive oxygen species as universal constraints in life-history evolution (2009, background): “Yet, the effects of ROS are dose dependent (Gechev et al. 2006; Quan et al. 2008), and at high levels these highly reactive molecules will exert oxidative stress on the cell, and invoke profound changes in gene expression This journal is q 2009 The Royal Society (Apel & Hirt 2004).”