Overexpression of the CAM-Derived NAC Transcription Factor KfNAC83 Enhances Photosynthesis, Water-Deficit Tolerance, and Yield in <i>Arabidopsis</i>.

ABSTRACT: Drought stress is a major constraint on plant photosynthesis, growth, and yield, particularly in the context of increasingly frequent and severe extreme weather events driven by global climate change. Enhancing photosynthetic efficiency and abiotic stress tolerance is therefore essential for sustaining crop productivity. In this study, we functionally characterized Kalanchoë fedtschenkoi NAC83 (KfNAC83), a transcription factor derived from a heat-tolerant obligate crassulacean acid metabolism (CAM) species, by constitutively overexpressing it in the C₃ model plant Arabidopsis thaliana. Transgenic Arabidopsis lines overexpressing KfNAC83 exhibited significantly enhanced tolerance to water-deficit and NaCl stress, along with improved photosynthet

SUBMITTER: Rathnayake KN 

PROVIDER: S-EPMC12468989 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature