Ontogeny of Expression and Activity of Digestive Enzymes and Establishment of gh/igf1 Axis in the Omnivorous Fish Chelon labrosus
Ficheros
Identificadores
Compartir
Metadatos
Mostrar el registro completo del ítemAutor
Gilannejad, Neda; Heras, Verónica de las; Martos Sitcha, Juan Antonio; Moyano López, Francisco Javier; Yúfera, Manuel; [et al.]Fecha
2020-05-18Resumen
Thick-lipped grey mullet (Chelon labrosus) is a candidate for sustainable aquaculture due to its omnivorous/detritivorous feeding habit. This work aimed to evaluate its digestive and growth potentials from larval to early juvenile stages. To attain these objectives the activity of key digestive enzymes was measured from three until 90 days post hatch (dph). Expression of genes involved in digestion of proteins (try2, ctr, pga2, and atp4a), carbohydrates (amy2a), and lipids (cel and pla2g1b), together with two somatotropic factors (gh and igf1) were also quantified. No chymotrypsin or pepsin activities were detected. While specific activity of trypsin and lipase were high during the first 30 dph and declined afterward, amylase activity was low until 57 dph and increased significantly beyond that point. Expression of try2, ctr, amy2a, and cel increased continuously along development, and showed a peak at the end of metamorphosis. Expression of pla2g1b, pga2 and atp4a increased until the ...
Palabra/s clave
Chelon labrosus
digestive function
enzyme activity
gene expression
ontogeny
somatotropic factors