A genetic screen for dominant chloroplast reactive oxygen species signaling mutants reveals life stage-specific singlet oxygen signaling networks.

ABSTRACT:

Introduction

Plants employ intricate molecular mechanisms to respond to abiotic stresses, which often lead to the accumulation of reactive oxygen species (ROS) within organelles such as chloroplasts. Such ROS can produce stress signals that regulate cellular response mechanisms. One ROS, singlet oxygen (¹O₂), is predominantly produced in the chloroplast during photosynthesis and can trigger chloroplast degradation, programmed cell death (PCD), and retrograde (organelle-to-nucleus) signaling. However, little is known about the molecular mechanisms involved in these signaling pathways or how many different signaling ¹O₂ pathways may exist.

Methods

The Arabidopsis thaliana plastid ferrochelatase two (fc2) mutant conditio

SUBMITTER: Lemke MD 

PROVIDER: S-EPMC10809407 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature