Temperature sensitivity differs between heart and red muscle mitochondria in mahi-mahi (Coryphaena hippurus).

ABSTRACT: Maintaining energy balance over a wide range of temperatures is critical for an active pelagic fish species such as the mahi-mahi (Coryphaena hippurus), which can experience rapid changes in temperature during vertical migrations. Due to the profound effect of temperature on mitochondrial function, this study was designed to investigate the effects of temperature on mitochondrial respiration in permeabilized heart and red skeletal muscle (RM) fibres isolated from mahi-mahi. As RM is thought to be more anatomically isolated from rapid ambient temperature changes compared to the myocardium, it was hypothesized that heart mitochondria would be more tolerant of temperature changes through a greater ability to match respiratory capacity to an increase in temperature and to maintain coupling, wh

SUBMITTER: Lau GY 

PROVIDER: S-EPMC7484784 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature