Hydrogen sulfide exposure reduces thermal set point in zebrafish.

ABSTRACT: Behavioural flexibility allows ectotherms to exploit the environment to govern their metabolic physiology, including in response to environmental stress. Hydrogen sulfide (H₂S) is a widespread environmental toxin that can lethally inhibit metabolism. However, H₂S can also alter behaviour and physiology, including a hypothesized induction of hibernation-like states characterized by downward shifts of the innate thermal set point (anapyrexia). Support for this hypothesis has proved controversial because it is difficult to isolate active and passive components of thermoregulation, especially in animals with high resting metabolic heat production. Here, we directly test this hypothesis by leveraging the natural behavioural thermoregulatory drive of fish to move between en

SUBMITTER: Skandalis DA 

PROVIDER: S-EPMC7735326 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature