Rethinking temperature effects on leaf growth, gene expression and metabolism: Diel variation matters.

ABSTRACT: Plants have evolved to grow under prominently fluctuating environmental conditions. In experiments under controlled conditions, temperature is often set to artificial, binary regimes with constant values at day and at night. This study investigated how such a diel (24 hr) temperature regime affects leaf growth, carbohydrate metabolism and gene expression, compared to a temperature regime with a field-like gradual increase and decline throughout 24 hr. Soybean (Glycine max) was grown under two contrasting diel temperature treatments. Leaf growth was measured in high temporal resolution. Periodical measurements were performed of carbohydrate concentrations, carbon isotopes as well as the transcriptome by RNA sequencing. Leaf growth activity peaked at different times under the two treatments,

SUBMITTER: Kronenberg L 

PROVIDER: S-EPMC8359295 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature