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ROS signalling

H2O2 sensing in immunity

Nature Plants volume 8, pages 1140–1141 (2022)Cite this article

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Intracellular H2O2 has emerged as a central player in signalling and stress acclimation, but how specificity is achieved remains elusive. Cytosolic peroxiredoxins play a decisive role as they sense H2O2 and transmit the oxidation signal through the formation of disulfide bridges, leading to stomatal closure that reduces pathogen entry.

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Fig. 1: The thiol peroxidase PRXII functions as regulator of OST1-dependent stomatal closure.

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Authors and Affiliations

  1. Biochemistry and Physiology of Plants, Faculty of Biology, CeBiTec, Bielefeld University, Bielefeld, Germany

    Karl-Josef Dietz & Lara Vogelsang

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  1. Karl-Josef Dietz
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  2. Lara Vogelsang
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Correspondence to Karl-Josef Dietz.

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The authors declare no competing interests.

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Dietz, KJ., Vogelsang, L. H2O2 sensing in immunity. Nat. Plants 8, 1140–1141 (2022). https://doi.org/10.1038/s41477-022-01256-1

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