Metabolomic and Transcriptomic Changes Induced by Potassium Deficiency During Sarocladium oryzae Infection Reveal Insights into Rice Sheath Rot Disease Resistance.

ABSTRACT: Rice sheath rot disease caused by Sarocladium oryzae (S. oryzae) infection is an emerging disease, and infection can cause yield losses of 20-85%. Adequate potassium (K) application is a feasible strategy for rice tolerance to S. oryzae infection. However, little is known about the metabolic mechanisms regulated by K that allow rice to cope better with S. oryzae infection. The present study performed a comparative metabolome and transcriptome analysis of rice with different K nutrition statuses before and upon S. oryzae infection. Sarocladium oryzae infection triggered a hydrogen peroxide (H₂O₂) burst, and K starvation aggravated the accumulation of H₂O₂ in the flag leaf sheath (FLS), which resulted in lipid peroxidation. Likewise, K deficiency a

SUBMITTER: Zhang J 

PROVIDER: S-EPMC8448798 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature