Polytrophic meroistic ovary
WebJan 1, 2009 · Meroistic ovaries can be subdivided into two types based on the location of accessory germ cells relative to the oocyte. In polytrophic ovaries, accessory germ cells … WebFeb 1, 2015 · The meroistic polytrophic ovary of D. melanogaster, with 16–20 ovarioles, has been the most influential model for understanding the interactions between stem cells …
Polytrophic meroistic ovary
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WebFeb 6, 2005 · Abstract. Sialis flavilatera L. (Sialidae, Megaloptera) has telotrophic-meroistic ovarioles. The germ cells of the tropharium are organized into two distinct tissues, the … WebFeb 21, 2024 · The acquisition of endosymbionts in oviparous insects can occur either at the beginning or in the late stages of oogenesis, although there are few studies in …
WebJul 7, 2024 · In insects with a polytrophic arrangement, these nurse cells are clonally related and immediately adjacent to each oocyte. An alternative arrangement is seen in telotrophic meroistic ovaries, where oocytes in each ovariole are connected to a common pool of nurse cells located in the germarium 7. WebOct 21, 2005 · The ovary structure of the myxophagan beetle, Hycdoscapha natans, was investigated by means of light and electron microscopy for the first time. Each of the two …
WebThree distinct organizations of insect ovaries. Schematic representation of ovarioles derived from panoistic, telotrophic meroistic, and polytrophic meroistic ovaries (anterior—top; … Weba Right and left ovaries dissected from a C. textor queen. b Scheme of the polytrophic meroistic ovary of C. textor, with repre-sentation of some ovarioles. c Ovarioles with nurse chamber and egg chamber at different stages of development (HE). Note the smaller, younger oocytes and the larger, more mature oocytes. d Ovarian fol-
WebMeroistic definition: (of an ovary ) producing yolk and ova Meaning, pronunciation, translations and examples
Webcells to support oocyte development. Meroistic ovanoles are of two types. Telotrophic ovarioles contain a cluster of trophic cells (N) located near the germarium. [n polytrophic ovarioles, the trophic cells or nurse cells (NC) are grouped near the oocyte to provide necessary macromolecules. FC: follicle cells. G: germarium. N: nutritive cord. circle of sisterhood grantWebConclusively, the distinct cell death programs (I, II and III) specifically engaged during oogenesis of A. bipunctata provide strong evidence for the structural and functional … circle of sisterhood at nc stateWebSialis flavilatera L. (Sialidae, Megaloptera) has telotrophic-meroistic ovarioles. The germ cells of the tropharium are organized into two distinct tissues, the central syncytium and … circle of sharps and flatsWebIn the meroistic insect ovary, the oocyte synthesizes little if any RNA. Most of the RNA which accumulates in the oocyte is synthesized by trophocytes. In the polytrophic meroistic … diamondback investorsWebNov 11, 2024 · Conversely, in social Hymenoptera with meroistic polytrophic ovaries, ultrastructural studies indicate patency in the follicular epithelium 25, but immunocytochemistry of vitellogenin and VgR show ... diamondback investments llc azWebIn the meroistic insect ovary, the oocyte synthesizes little if any RNA. Most of the RNA which accumulates in the oocyte is synthesized by trophocytes. In the polytrophic meroistic … circle of sisterhood philanthropyWebThis situation changed recently when a number of observations carried out in the meroistic polytrophic ovarioles of Drosophila melanogaster started to unravel the key roles played … diamondback investor