Modification of Non-photochemical Quenching Pathways in the C₄ Model Plant <i>Setaria viridis</i> Revealed Shared and Unique Photoprotection Mechanisms as Compared to C₃ Plants.

ABSTRACT: Light is essential for photosynthesis; however, excess light can increase the accumulation of photoinhibitory reactive oxygen species that reduce photosynthetic efficiency. Plants have evolved photoprotective non-photochemical quenching (NPQ) pathways to dissipate excess light energy. In tobacco and soybean (C₃ plants), overexpression of three NPQ genes, violaxanthin de-epoxidase (VDE), Photosystem II Subunit S (PsbS), and zeaxanthin epoxidase (ZEP), hereafter VPZ, resulted in faster NPQ induction and relaxation kinetics, and increased crop yields in field conditions. NPQ is well-studied in C₃ plants; however, NPQ and the translatability of the VPZ approach in C₄ plants is poorly understood. The green foxtail Setaria viridis is a

SUBMITTER: Milburn G 

PROVIDER: S-EPMC11761403 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature