P. Kulcsar et al., IDENTIFICATION OF ECDYSONE, 20-HYDROXYECDYSONE AND MAKISTERONE-A, IN THE VETCH APHID, MEGOURA-VICIAE BUCK, Acta phytopathologica et entomologica Hungarica, 29(1-2), 1994, pp. 161-164
Ecdysone, 20-hydroxyecdysone, and makisterone A were identified in ape
rous virginoparae of the vetch aphid, Megoura viciae using RP-HPLC and
RIA. In whole body extracts the titre of 20-hydroxyecdysone is 50 tim
es higher than that of makisterone A and 10 times higher than ecdysone
. In M. viciae, the functions of these hormones, apart from probable r
egulation of the moulting process (20-hydroxyecdysone), is not known.