The transcription factor OsNAC25 regulates potassium homeostasis in rice.

ABSTRACT: Over-application of potassium (K) fertilizer in fields has a negative impact on the environment. Developing rice varieties with high KUE will reduce fertilizer for sustainable agriculture. However, the genetic basis of KUE in a more diverse and inclusive population remains largely unexplored. Here, we show that the transcription factor OsNAC25 enhances K⁺ uptake and confers high KUE under low K⁺ supply. Disruption of OsNAC25 by CRISPR/Cas9-mediated mutagenesis led to a considerable loss of K⁺ uptake capacity in rice roots, coupled with reduced K⁺ accumulation in rice and severe plant growth defects under low- K⁺ conditions. However, the overexpression of OsNAC25 enhanced K⁺ accumulation by regulating proper K⁺ upt

SUBMITTER: Wang C 

PROVIDER: S-EPMC11869173 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature