Biochemical quantification of proteins, lipids, carbohydrates, vitellogenin, and vitellin
was performed on hemolymph and gonad tissues of all specimens.
Several molecules were identified, like Bm95 (93), vitellin
(94), 64P (95), trypsin inhibitors (96), SBm1462 (97), ferritin 2 (98) and subolesin (99-100).
La tumeur du sac vitellin
est differenciee dans le sens extra-embryonnaire et reproduit des structures evocatrices du sac vitellin
Les trois premiers jours du developpement des larves ont montre une reduction progressive du sac vitellin
suivie d'un passage a la nourriture exogene.
Effect of age, diet, diapause and juvenile hormone on oogenesis and the amount of vitellogenin and vitellin
in the twospotted stink bug, Perillus bioculatus (Heteroptera: Pentatomidae).
Among their topics are the biosynthesis and processing of insect vitellogenins, the regulation of yolk protein gene expression and vitellogenesis in higher diptera, vitellogenesis directed by juvenile hormone, the accumulation of lipids in insect oocytes, the regulation of yolk protein degradation during insect enbryogenesis, and biochemical and ultrastructural aspects of vitellin
utilization during embryogensis.
The monoclonal antibodies used to develop the ELISAs came from the yolk proteins vitellin
and vitellogenin of the spined soldier bug, Podisus maculiventris, and the minute pirate bug, Orius insidiosus.
In addition, vitellin
levels were elevated only in females at 63 ppb pyrene after the 6-week exposure.
Albumen, conalbumin, egg white, egg yolk, ovalbumin, ovomucold, ovoglobulin, vitellin
and vitellogenin in the soldier bug, Podisus maculiventris: Identification with monoclonal antibodies and reproductive response to diet.
Vitellogenin uptake and vitellin
localization in insect follicles examined using monoclonal antibodies and confocal scanning microscopy.
Degradation of vitellin
during embryonic and larval development in the Pacific oyster Crassostrea gigas.