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Differential vitellin polypeptide processing in insect embryos
Abstract This review focuses on the current status of knowledge regarding the process of vitellogenin (Vg) uptake and vitellin (Vt) storage in insect oocytes. We also consider the overall morphology… Expand
Seasonal levels of serum vitellogenin and oocyte growth in the channel catfish Ictalurus punctatus.
Abstract Seasonal levels of serum vitellogenin (VG) were measured in adult and juvenile (10–30 months old) female channel catfish using an enzyme-linked immunosorbent assay (ELISA). In adults sampled… Expand
Ovarian follicle development during vitellogenesis in the house cricket Acheta domesticus
To determine the morphological correlates of vitellogenin uptake and distribution, vitellogenic ovarian follicles of Acheta domesticus were examined by light and transmission electron microscopy.… Expand
Vitellogenin induction by estradiol in channel catfish, Ictalurus punctatus.
In oviparous vertebrates estrogens induce hepatic synthesis of vitellogenin (VG), a blood protein sequestered in vitellogenic oocytes and from which lipovitellin (LV) and phosvitin are derived. Our… Expand
Vitellogenesis in the allatectomized stick insect Carausius morosus (br.) (Phasmatodea: Lonchodinae)
Abstract Effects of allatectomy on vitellogenesis in adult Carausius morosus Br. were examined using rocket immunoelectrophoresis, polyacrylamide gel electrophoresis, fluorographic identification and… Expand
Interactions between social factors and ovarian development in the European house cricket A cheta domesticus
- J. Bradley
- 1 September 1985
Several endocrine‐mediated processes in insects are influenced by environmental factors including the density and sex ratio of populations. Effects of grouping on total egg production and rate of… Expand
[3H] Corticosterone binding activity of adrenal incubation media in response to in vivo and in vitro ACTH stimulation.
- J. Pritchett, W. L. Harper, D. Marple, J. Bradley, M. Till
- Biology, Medicine
- Biochemical and biophysical research…
- 29 October 1979
Summary The influence of in vivo or in vitro administration of ACTH upon in vitro adrenal corticosterone production as well as [ 3 H] corticosterone binding activity of incubation media have been… Expand
Yolk proteins in developing follicles of the house cricket, Acheta domesticus (L.)
The occurence of the two major yolk proteins in vitellogenic follicles at various stages of development in the house cricket, Acheta domesticus, was studied electrophoretically. Follicles were staged… Expand
Yolk proteins in the house cricket, Acheta domesticus: Identification, characterization, and effect of ovariectomy upon their synthesis
Four female-specific yolk proteins were identified in the hemolymph of adult, ovulating Acheta domesticus through the use of SDS-polyacrylamide gel electrophoresis. Molecular weights were estimated… Expand
Effects of triazoles on fungi. III. Composition of a plasma membrane-enriched fraction of Taphrina deformans *
Comparative chemical analyses were conducted with plasma membrane-enriched fractions of Taphrina deformans cells grown in a medium with or without the C-14 demethylation inhibitor propiconazole at a… Expand