Dynamic Changes in Reactive Oxygen Species in the Shoot Apex Contribute to Stem Cell Death in Arabidopsis thaliana

• Published in: International journal of molecular sciences Vol. 23; no. 7; p. 3864
• Main Authors: Wang, Yukun, Shirakawa, Makoto, Ito, Toshiro
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 31.03.2022; MDPI
• Subjects: Apexes; Apoptosis; Arabidopsis - metabolism; Arabidopsis Proteins - genetics; Arabidopsis Proteins - metabolism; Arabidopsis thaliana; Bolting; Cell Death; Free radicals; Gene Expression Regulation, Plant; Genes; Homeostasis; Hydrogen peroxide; hydrogen peroxide (H2O2); Hydrogen Peroxide - metabolism; Hydrogen Peroxide - pharmacology; Kinases; Life span; longevity; Plant cells; programmed cell death (PCD); Reactive oxygen species; reactive oxygen species (ROS); Reactive Oxygen Species - metabolism; Senescence; shoot stem cell; Stem cells; Stem Cells - metabolism; superoxide anion (<named-content content-type="inline"> <mml:math id="mm200"> <mml:mi mathvariant="normal">O</mml:mi> 2 · − </mml:math> </named-content>); Superoxide anions; hydrogen peroxide (H2O2); longevity; reactive oxygen species (ROS); superoxide anion ( O 2 · − ); shoot stem cell; programmed cell death (PCD)

In monocarpic plants, stem cells are fated to die. However, the potential mechanism of stem cell death has remained elusive. Here, we reveal that the levels of two forms of reactive oxygen species (ROS), superoxide anion free radical (O2·-) and hydrogen peroxide (H O ), show dynamic changes in the s...