Short Communication Open Access
Volume 1 | Issue 2 | DOI: https://doi.org/10.33696/genetics.1.006

Actors of ROS Homeostasis in Stigmatic Cells Essential for Plant Reproduction

  • 1Laboratoire Reproduction et Developpement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342 Lyon, France
  • 2Current adress : CryoCapCell, Inserm U1195, Université Paris Saclay, Le Kremlin-Bicêtre, France
+ Affiliations - Affiliations

Corresponding Author

Isabelle Fobis-Loisy, isabelle.fobis-loisy@ens-lyon.fr

Received Date: February 04, 2022

Accepted Date: March 08, 2022


Reactive oxygen species (ROS) play important roles during development and responses to external stimuli. In Brassicaceae, the stigma epidermis accumulates a large amount of ROS. Moreover, regulating the stigmatic ROS status is crucial for Self-incompatibility (SI) mechanisms, to ensure self-pollen rejection while promoting compatible pollen. Here, scanning our transcriptomic data in light of recent advances in the Brassicaceae SI system, we identified Class III peroxidases that are highly expressed in mature stigma and might regulate stigma ROS homeostasis. We also found two Receptor Like Kinases from the CYSTEINE-RICH RECEPTOR-LIKE KINASES family (CRK31 and CRK41) strongly upregulated upon incompatible pollination. We proposed that these two CRKs might be part of the ROS-mediated SI response and serve to connect pollen recognition and ROS accumulation.


Pollination, Self-incompatibility, ROS, Receptor like kinase, Brassicaceae

Author Information X