Variations of vitamin D-like reactivity in the crustacean Orchestia cavimana during the molt cycle.
An investigation into vitamin D-like molecules has been performed on whole extracts of the terrestrial amphipod Orchestia cavimana, using a sensitive nonequilibrium assay employing 1,25-(OH)2 D receptor from calf thymus. Relatively large amounts of these secosteroid-like molecules were observed and they varied in concentration according to the stages of the molt cycle. The amplitude of these variations reaches a ratio of about 40 from the minimum in premolt to the intermolt sharp peak.
Meyran
J C
JC
UA CNRS 674, Université de Bourgogne, Dijon, France.
Chapuy
M C
MC
Arnaud
S
S
Sellem
E
E
Graf
F
F
D000818:Animals; D002117:Calcitriol / Q000032:analysis* / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D003445:Crustacea / Q000502:physiology*; D011869:Radioligand Assay
D002117:Calcitriol