Results 1 to 10 of about 1,174 (215)

Suppression of reproductive function in juvenile rams by a slow-release gonadotropin-releasing hormone implant [PDF]

open access: yesOpen Veterinary Journal, 2022
Background: Regarding animal welfare and reversible suppression of reproduction the need for alternatives to surgical castration like slow-release gonadotropin-releasing hormone implants is increasing.
Luise Prestel   +4 more
doaj   +1 more source

Social administration of juvenile hormone to larvae increases body size and nutritional needs for pupation

open access: yesRoyal Society Open Science, 2023
Social insects often display extreme variation in body size and morphology within the same colony. In many species, adult morphology is socially regulated by workers during larval development. While larval nutrition may play a role in this regulation, it
Matteo A. Negroni, Adria C. LeBoeuf
doaj   +1 more source

Regulation of Juvenile Hormone on Summer Diapause of Geleruca daurica and Its Pathway Analysis

open access: yesInsects, 2021
Juvenile hormone (JH) signaling plays an important role in regulation of reproductive diapause in insects. However, we have little understanding of the effect of JH on gene expression at the transcriptome level in diapause. Galeruca daurica is a new pest
Hong-Yue Ma   +4 more
doaj   +1 more source

Aspergillus nidulans synthesize insect juvenile hormones upon expression of a heterologous regulatory protein and in response to grazing by Drosophila melanogaster larvae. [PDF]

open access: yesPLoS ONE, 2013
Secondary metabolites are known to serve a wide range of specialized functions including communication, developmental control and defense. Genome sequencing of several fungal model species revealed that the majority of predicted secondary metabolite ...
Morten Thrane Nielsen   +9 more
doaj   +1 more source

Effect of Juvenile Hormone on Resistance against Entomopathogenic Fungus Metarhizium robertsii Differs between Sexes

open access: yesJournal of Fungi, 2020
Juvenile hormone has been suggested to be a potential mediator in the trade-off between mating and insects’ immunity. Studies on various insect taxons have found that juvenile hormone interferes with humoral and cellular immunity. Although this was shown
Markus J. Rantala   +5 more
doaj   +1 more source

Effects of juvenile hormone in fertility and fertility-signaling in workers of the common wasp Vespula vulgaris.

open access: yesPLoS ONE, 2021
In the highly eusocial wasp, Vespula vulgaris, queens produce honest signals to alert their subordinate workers of their fertility status, and therefore they are reproductively suppressed and help in the colony. The honesty of the queen signals is likely
Cintia Akemi Oi   +5 more
doaj   +1 more source

Structural basis for juvenile hormone biosynthesis by the juvenile hormone acid methyltransferase [PDF]

open access: yesJournal of Biological Chemistry, 2021
Juvenile hormone (JH) acid methyltransferase (JHAMT) is a rate-limiting enzyme that converts JH acids or inactive precursors of JHs to active JHs at the final step of JH biosynthesis in insects and thus presents an excellent target for the development of insect growth regulators or insecticides.
Pengchao Guo   +9 more
openaire   +2 more sources

Disruptive Effects of Two Curcuminoids (Demethoxycurcumin and Bisdemethoxycurcumin) on the Larval Development of Drosophila melanogaster

open access: yesInsects, 2023
Juvenile hormones (JHs) play a central role in insect development, reproduction, and various physiological functions. Curcuminoids generally exhibit a wide range of biological activities, such as antioxidant, anti-inflammatory, antibacterial, and ...
Jun-Hyoung Jeon   +5 more
doaj   +1 more source

Differential expression of some termite neuropeptides and insulin/IGF-related hormones and their plausible functions in growth, reproduction and caste determination [PDF]

open access: yesPeerJ, 2023
Background Insulin-like growth factor (IGF) and other insulin-like peptides (ilps) are important hormones regulating growth and development in animals.
Jan A. Veenstra
doaj   +2 more sources

Suppression of Gene Juvenile Hormone Diol Kinase Delays Pupation in Heortia vitessoides Moore

open access: yesInsects, 2019
Juvenile hormone diol kinase (JHDK) is a critical enzyme involved in juvenile hormone degradation in insects. In this study, HvJHDK in the Heortia vitessoides Moore (Lepidoptera: Crambidae) transcriptional library was cloned.
Zihao Lyu   +5 more
doaj   +1 more source

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