منابع مشابه
The two juvenile hormones from the cecropia silk moth.
Some years ago we reviewed the status of the insect juvenile hormone (JH) and its isolation.1 Since then two noteworthy contributions toward purification of the hormone have appeared.2' In all these purification attempts adult male Cecropia silk moths4 proved to be an invaluable source material. The first nearly pure hormone preparation was isolated in 1965.1 We obtained it from Cecropia oil (s...
متن کاملPolarized Intercellular Bridges in Ovarian Follicles of the Cecropia Moth
Fluorescein-labeled rabbit serum globulin was injected into vitellogenic oocytes of the cecropia moth. Though the label spread throughout the ooplasm in less than 30 min, it was unable even after 2 h to cross the complex of intercellular bridges connecting the oocyte to its seven nurse cells. After injection into a single nurse cell, fluorescence was detected in the oocyte adjacent to the bridg...
متن کاملDimorphic cocoons of the cecropia moth (Hyalophora cecropia): Morphological, behavioral, and biophysical differences
The larvae of the giant silk moth (Hyalophora cecropia) spin strikingly dimorphic, multilayered cocoons that are either large and fluffy (baggy) or significantly smaller and tightly woven (compact). Although these cocoon-morphs share the same function (i.e., housing for pupal to adult development during overwintering), previous work has been unable to determine why cocoon dimorphism exists. We ...
متن کاملProtein Uptake in the Oocytes of the Cecropia Moth
The formation of yolk spheres in the oocyte of the cecropia moth, Hyalophora cecropia (L.), is known immunologically to result largely from uptake of a sex-limited blood protein. Recent electron microscope analyses of insect and other animal oocytes have demonstrated fine structural configurations consistent with uptake of proteins by pinocytosis. An electron microscope analysis of the cecropia...
متن کاملOn the biosynthesis of juvenile hormone in the adult Cecropia moth.
tides. Origin and nature of these substances, which are characterized by their lacking binding capacity for charcoal, are not yet clear. CHOU and SCHERB A U M 3 1 working with Tetrahymena described an accumulation of acid-soluble phosphorylated deoxysugars by release from existing structures after a heat treatment. The question, if degradation products from D N A (e. g. deoxynucleosides, cf. 1....
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1949
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay1024