Review: Evolution of ROS targets for plant development

Reactive oxygen species (ROS) are agents of damage but also potent signals. Here, Singh et al. review the cellular targets that support ROS signaling across the green kingdom. Many of the signaling roles for ROS have been uncovered in Arabidopsis and other angiosperms, so it is interesting to look at their presence in other plant types. Most of the ROS signaling targets are present in green algae and thus predate terrestrialization, but there has also been a notable diversification of these gene families in terrestrial plants. The article has a particular focus on the roles of ROS in root and leaf developmental programs, and how they interact with phytohormones. (Summary by Mary Williams @PlantTeaching) Trends Plant Sci. 10.1016/j.tplants.2024.03.005