Imaginal discs regulate developmental timing in Drosophila melanogaster
نویسندگان
چکیده
منابع مشابه
Biogenesis of Golgi stacks in imaginal discs of Drosophila melanogaster.
We provide a detailed description of Golgi stack biogenesis that takes place in vivo during one of the morphogenetic events in the lifespan of Drosophila melanogaster. In early third-instar larvae, small clusters consisting mostly of vesicles and tubules were present in epithelial imaginal disk cells. As larvae progressed through mid- and late-third instar, these larval clusters became larger b...
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[3H]Ponasterone A (PNA) of high specific activity has been used to identify and begin characterization of ecdysteroid (formerly called ecdysone) receptors in cytoplasmic and nuclear fractions of imaginal discs of Drosophila melanogaster. The equilibrium Kd of the observed macromolecular binding, 3--4 X 10(-9) M PNA, is in good agreement with the minimal concentration required for induction of c...
متن کاملDissection and immunostaining of imaginal discs from Drosophila melanogaster.
A significant portion of post-embryonic development in the fruit fly, Drosophila melanogaster, takes place within a set of sac-like structures called imaginal discs. These discs give rise to a high percentage of adult structures that are found within the adult fly. Here we describe a protocol that has been optimized to recover these discs and prepare them for analysis with antibodies, transcrip...
متن کاملDevelopmental behaviour of fragments of symmetrical and asymmetrical imaginal discs of Drosophila melanogaster (Diptera).
Earlier experiments have demonstrated a very high 'regulative' ability in the genital disc of Drosophila melanogaster. Medially sectioned discs, even from mature larvae, are able to form a fully differentiated normal genital apparatus if the fragments are cultured in vivo in a larval host for a sufficient length of time before metamorphosis. Even a quarter of a disc has this 'regulative' abilit...
متن کاملPeripodial Cells Regulate Proliferation and Patterning of Drosophila Imaginal Discs
Cells employ a diverse array of signaling mechanisms to establish spatial patterns during development. Nowhere is this better understood than in Drosophila, where the limbs and eyes arise from discrete epithelial sacs called imaginal discs. Molecular-genetic analyses of pattern formation have generally treated discs as single epithelial sheets. Anatomically, however, discs comprise a columnar c...
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ژورنال
عنوان ژورنال: Developmental Biology
سال: 2008
ISSN: 0012-1606
DOI: 10.1016/j.ydbio.2008.05.556