Dmh. Mantiri et al., NATURE AND METABOLISM OF CAROTENOID-PIGMENTS DURING THE EMBRYOGENESISOF THE EUROPEAN LOBSTER HOMARUS-GAMMARUS (LINNE, 1758), Comparative biochemistry and physiology. Part A, Physiology, 115(3), 1996, pp. 237-241
The carotenoid concentration oi the whole developing egg oi the lobste
r Homarus gammarus remains unchanged during the embryogenesis. The dec
rease of pigment amounts in the vitellin mass corresponds to the trans
fer oi carotenoids to the forming embryo. Esterified astaxanthin (mono
and diester forms) appear during the early metanauplius stage Fl 90.
Unesterified astaxanthin is the main pigment occurring in the vitellus
. Esterified forms were found to increase whereas free astaxanthin dec
reases up to hatch. The esterification oi astaxanthin permits the stor
age of pigment in the tissues as an adaptative feature related to the
formation oi the embryo.