Nitric Oxide Enhances Rice Resistance to Rice Black-Streaked Dwarf Virus Infection.

ABSTRACT: BACKGROUND:Rice black-streaked dwarf virus (RBSDV) causes one of the most important rice virus diseases of plants in East Asia. However, molecular mechanism(s)controlling rice resistance to infection is largely unknown. RESULTS:In this paper, we showed that RBSDV infection in rice significantly induced nitric oxide (NO) production. This finding was further validated through a genetic approach using a RBSDV susceptible (Nipponbare) and a RBSDV resistant (15HPO187) cultivar. The production of endogenous NO was muchhigher in the 15HPO187 plants, leading to a much lower RBSDV disease incidence. Pharmacological studies showed that the applications of NO-releasingcompounds (i.e., sodium nitroprusside [SNP] and nitrosoglutathione [GSNO]) to rice plants reduced RBSDV disease incidence. After RBSDV

SUBMITTER: Lu R 

PROVIDER: S-EPMC7156532 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature