Comparative physiological and metabolomics analysis of wheat (Triticum aestivum L.) following post-anthesis heat stress.

ABSTRACT: Genetic improvement for stress tolerance requires a solid understanding of biochemical processes involved with different physiological mechanisms and their relationships with different traits. The objective of this study was to demonstrate genetic variability in altered metabolic levels in a panel of six wheat genotypes in contrasting temperature regimes, and to quantify the correlation between those metabolites with different traits. In a controlled environment experiment, heat stress (35:28 ± 0.08°C) was initiated 10 days after anthesis. Flag leaves were collected 10 days after heat treatment to employ an untargeted metabolomics profiling using LC-HRMS based technique called IROA. High temperature stress produced significant genetic variations for cell and thylakoid membrane damage, and

SUBMITTER: Thomason K 

PROVIDER: S-EPMC5999278 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature