Role of histidine-related compounds to intracellular buffering in fish skeletal muscle
Laboratory studyOther animals
- Design
- Laboratory study
- What was measured
- Histidine-related compounds and buffer capacity in red and white muscle of rainbow trout and Pacific blue marlin.
What the authors reported
Marlin red and white muscle had about twice the buffer capacity of trout muscle, and white muscle buffered about twice as much as red in both species. Buffer capacity was highest at pH 6.5 to 7.5, matching high anserine levels. Titrated buffering by histidine-related compounds exceeded the observed buffering, which suggested not all of them were available to absorb protons. They contributed from 7% (trout red) to 62% (marlin white) of cellular buffering, with phosphate and protein the other principal buffers and taurine contributing in red muscle. The authors conclude these compounds account for the buffering differences between species and fibre types.
Limits of this study
Fish tissue; comparative physiology. Full text not read.
Source
PubMed 4051030 · doi:10.1152/ajpregu.1985.249.4.r449
Entry checked against PubMed abstract (E-utilities) on 2026-10-19. The dose shown is the dose the researchers used. It is not a recommendation. How to read this page.