Metabolic Dynamics of Developing Rice Seeds Under High Night-Time Temperature Stress.

ABSTRACT: High temperature stress during rice reproductive development results in yield losses. Reduced grain yield and grain quality has been associated with high temperature stress, and specifically with high night-time temperatures (HNT). Characterizing the impact of HNT on the phenotypic and metabolic status of developing rice seeds can provide insights into the mechanisms involved in yield and quality decline. Here, we examined the impact of warmer nights on the morphology and metabolome during early seed development in six diverse rice accessions. Seed size was sensitive to HNT in four of the six genotypes, while seed fertility and seed weight were unaffected. We observed genotypic differences for negative impact of HNT on grain quality. This was evident from the chalky grain appearance due to

SUBMITTER: Dhatt BK 

PROVIDER: S-EPMC6857699 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature