Results 11 to 20 of about 659 (187)

Locations of Rab, Allatotropin, Prothoracicotropic hormone and Period in the larval brain, corpus allatum and frontal ganglion of Bombyx mori [PDF]

open access: yesEuropean Journal of Entomology, 2023
Rab, a low molecular weight GTP-binding protein, regulates the transmission of intracellular proteins. Insect neuropeptides that are directly involved in growth, development, reproduction, homeostasis, courtship, feeding, circadian rhythm and many other ...
Asuka MATSUI   +6 more
doaj   +2 more sources

Inputs to the hormonal control of egg development in Rhodnius prolixus [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 1987
This paper re-examines existing data on the environmental inputs governing egg production in Rhodnius prolixus. Feeding has a direct effect on egg production such that the product of the unfed weight of the female times the weight of the blood meal is a ...
K. G. Davey
doaj   +2 more sources

Short-and long-term effects of proallatotoxin (Ethoxyprecocene II) on Rhodnius prolixus females Efeitos a curto e longo prazos, da proalototoxina (Etoxiprecoceno II) em fêmeas de Rhodnius prolixus [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 1987
Oogenesis and oviposition can be inhibited in female of Rhodnius prolixus by means of short-term experiment (first reproductive cycle) of a single dose of ethoxyprecocene II given by ingestion.
Patricia de Azambuja, Eloi S. Garcia
doaj   +2 more sources

THE FUNCTION OF THE CORPUS ALLATUM IN MUSCOID DIPTERA [PDF]

open access: yesThe Biological Bulletin, 1943
1. Evidence from extirpation and transplantation experiments suggests that the ring gland of Lucilia sericata and Sarcophaga securifera produces a hormone concerned with normal development. Its action can be seen in the larva where it results in puparium formation, and in the adult fly first in the changes which occur during the breakdown of the larval
Day, M. F.
openaire   +4 more sources

Crosstalk between Nutrition, Insulin, Juvenile Hormone, and Ecdysteroid Signaling in the Classical Insect Model, Rhodnius prolixus. [PDF]

open access: yesInt J Mol Sci, 2022
The rigorous balance of endocrine signals that control insect reproductive physiology is crucial for the success of egg production. Rhodnius prolixus, a blood-feeding insect and main vector of Chagas disease, has been used over the last century as a ...
Leyria J   +7 more
europepmc   +3 more sources

Characterization of clock‐related proteins and neuropeptides in Drosophila littoralis and their putative role in diapause

open access: yesJournal of Comparative Neurology, Volume 531, Issue 15, Page 1525-1549, October 2023., 2023
We show that the circadian clock neurons of Drosophila littoralis, a highly photoperiodic species, exhibit important differences to those of Drosophila melanogaster in respect of neuropeptide expression. The small ventrolateral neuron (s‐LNv) cells, which signal via the neuropeptides pigment‐dispersing factor (PDF) and short neuropeptide F (sNPF) to ...
Giulia Manoli   +3 more
wiley   +1 more source

Involvement of Methoprene‐tolerant and Krüppel homolog 1 in juvenile hormone‐mediated vitellogenesis of female Liposcelis entomophila (End.) (Psocoptera: Liposcelididae)

open access: yesArchives of Insect Biochemistry and Physiology, Volume 112, Issue 1, January 2023., 2023
A graphical summary of this study and a model of the role of juvenile hormone (JH) signaling in the reproduction of Liposcelis entomophila. JH signaling induces reproduction by enhancing the expression of Vg through Met and Kr‐h1. Blocking JH signaling by knockdown with Met and Kr‐h1, which inhibits Vg expression and affects reproduction, can provide ...
Bin‐Bin Yang   +5 more
wiley   +1 more source

Genome‐wide transcriptomic changes reveal the genetic pathways involved in insect migration

open access: yesMolecular Ecology, Volume 31, Issue 16, Page 4332-4350, August 2022., 2022
Abstract Insects are capable of extraordinary feats of long‐distance movement that have profound impacts on the function of terrestrial ecosystems. The ability to undertake these movements arose multiple times through the evolution of a suite of traits that make up the migratory syndrome, however the underlying genetic pathways involved remain poorly ...
Toby Doyle   +13 more
wiley   +1 more source

Neuroendocrine Regulation of Reproductive Dormancy in the Fruit Fly Drosophila melanogaster: A Review of Juvenile Hormone-Dependent Regulation

open access: yesFrontiers in Ecology and Evolution, 2021
Animals can adjust their physiology, helping them survive and reproduce under a wide range of environmental conditions. One of the strategies to endure unfavorable environmental conditions such as low temperature and limited food supplies is dormancy. In
Yoshitomo Kurogi   +3 more
doaj   +1 more source

Transcriptomic evidence for a trade‐off between germline proliferation and immunity in Drosophila

open access: yesEvolution Letters, Volume 5, Issue 6, Page 644-656, December 2021., 2021
Abstract Life‐history theory posits that investment into reproduction might occur at the expense of investment into somatic maintenance, including immune function. If so, reduced or curtailed reproductive effort might be expected to increase immunity.
Marisa A. Rodrigues   +4 more
wiley   +1 more source

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