Roles of ROS and redox in regulating cell-to-cell communication:
Spotlight on viral modulation of redox for local spread
Abstract
Reactive oxygen species are important signaling molecules that influence
many aspects of plant biology. One way in which ROS influence plant
growth and development is by modifying intercellular trafficking through
plasmodesmata (PD). Viruses have evolved to use plasmodesmata for their
local cell-to-cell spread between plant cells, so it is therefore not
surprising that they have found ways to modulate ROS and redox signaling
to optimize plasmodesmata function for their benefit. This review
examines how intracellular signaling via ROS and redox pathways regulate
intercellular trafficking via PD during development and stress. The
relationship between viruses and ROS-redox systems, and the strategies
viruses employ to control PD function by interfering with ROS-redox in
plants is also discussed.