Immediate Transcriptional Response to a Temperature Pulse under a Fluctuating Thermal Regime.

ABSTRACT: The response of ectotherms to temperature stress is complex, non-linear, and is influenced by life stage and previous thermal exposure. Mortality is higher under constant low temperatures than under a fluctuating thermal regime (FTR) that maintains the same low temperature but adds a brief, daily pulse of increased temperature. Long term exposure to FTR has been shown to increase transcription of genes involved in oxidative stress, immune function, and metabolic pathways, which may aid in recovery from chill injury and oxidative damage. Previous research suggests the transcriptional response that protects against sub-lethal damage occurs rapidly under exposure to fluctuating temperatures. However, existing studies have only examined gene expression after a week or over many months. Here we

SUBMITTER: Melicher D 

PROVIDER: S-EPMC6703998 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature