Novel transcriptional responses to heat revealed by turning up the heat at night.

ABSTRACT:

Key message

The circadian clock controls many molecular activities, impacting experimental interpretation. We quantify the genome-wide effects of time-of-day on the heat-shock response and the effects of "diurnal bias" in stress experiments. Heat stress has significant adverse effects on plant productivity worldwide. Most experiments examining heat stress are performed during daytime hours, generating a 'diurnal bias' in the pathways and regulatory mechanisms identified. Such bias may confound downstream interpretations and limit our understanding of the full response to heat stress. Here we show that the transcriptional and physiological responses to a sudden heat shock in Arabidopsis are profoundly sensitive to the time of day. We observe that plant tolerance and acclimation to h

SUBMITTER: Grinevich DO 

PROVIDER: S-EPMC6695350 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature