Far-Red Absorbing LHCII Incorporating Chlorophyll <i>d</i> Preserves Photoprotective Carotenoid Triplet-Triplet Energy Transfer Pathways.

ABSTRACT: Chlorophyll d (Chl d) can be successfully introduced in reconstituted LHCII with minimal interference with the energy equilibration processes within the complex, thereby facilitating the development of plant light-harvesting complexes (LHCs) with enhanced capabilities for light absorption in the far-red spectrum. In this study, we address whether Chl d introduction affects LHCII's ability to protect itself from photo-oxidation, a crucial point for successfully exploiting modified complexes to extend light harvesting in plants. Here we focus on incorporating Chl d into Lhcb1 (the monomeric unit of LHCII), specifically studying the Chl triplet quenching by carotenoids using time-resolved electron paramagnetic resonance (TR-EPR) and optically detected magnetic reso

SUBMITTER: Cianfarani N 

PROVIDER: S-EPMC11849036 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature