Partial root-zone drying combined with nitrogen treatments mitigates drought responses in rice.

ABSTRACT: Drought is a major stress affecting rice yields. Combining partial root-zone drying (PRD) and different nitrogen fertilizers reduces the damage caused by water stress in rice. However, the underlying molecular mechanisms remain unclear. In this study, we combined treatments with PRD and ammonia:nitrate nitrogen at 0:100 (PRD_0:100) and 50:50 (PRD_50:50) ratios or PEG and nitrate nitrogen at 0:100 (PEG_0:100) ratios in rice. Physiological, transcriptomic, and metabolomic analyses were performed on rice leaves to identify key genes involved in water stress tolerance under different nitrogen forms and PRD pretreatments. Our results indicated that, in contrast to PRD_0:100, PRD_50:50 elevated the superoxide dismutase activity in leaves to accel

SUBMITTER: Zhao M 

PROVIDER: S-EPMC11056961 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature