Singlet-Oxygen-Mediated Regulation of Photosynthesis-Specific Genes: A Role for Reactive Electrophiles in Signal Transduction.

ABSTRACT: During photosynthesis, reactive oxygen species (ROS) are formed, including hydrogen peroxide (H₂O₂) and singlet oxygen (¹O₂), which have putative roles in signalling, but their involvement in photosynthetic acclimation is unclear. Due to extreme reactivity and a short lifetime, ¹O₂ signalling occurs via its reaction products, such as oxidised poly-unsaturated fatty acids in thylakoid membranes. The resulting lipid peroxides decay to various aldehydes and reactive electrophile species (RES). Here, we investigated the role of ROS in the signal transduction of high light (HL), focusing on GreenCut2 genes unique to photosynthetic organisms. Using RNA seq. data, the transcriptional responses of Chlamydomonas reinhardtii to

SUBMITTER: Pancheri T 

PROVIDER: S-EPMC11313482 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature