Results 61 to 70 of about 1,135 (171)

A quantitative assay for the juvenile hormones and their precursors using fluorescent tags. [PDF]

open access: yesPLoS ONE, 2012
The juvenile hormones (JHs) are sesquiterpenoid compounds that play a central role in insect reproduction, development and behavior. The lipophilic nature of JHs and their precursors, in conjunction with their low concentration in tissues and ...
Crisalejandra Rivera-Perez   +2 more
doaj   +1 more source

A comparative analysis of corpora allata-corpora cardiaca microRNA repertoires revealed significant changes during mosquito metamorphosis [PDF]

open access: yesInsect Biochemistry and Molecular Biology, 2018
The corpora allata (CA) are a pair of endocrine glands with neural connections to the brain and close association with another neuroendocrine organ, the corpora cardiaca (CC). The CA from adult female Aedes aegypti mosquitoes synthesize fluctuating levels of juvenile hormone (JH), which have been linked to the ovarian development and are influenced by ...
Marcela Nouzova   +3 more
openaire   +3 more sources

Mevalonate-Farnesal Biosynthesis in Ticks: Comparative Synganglion Transcriptomics and a New Perspective. [PDF]

open access: yesPLoS ONE, 2016
Juvenile hormone (JH) controls the growth, development, metamorphosis, and reproduction of insects. For many years, the general assumption has been that JH regulates tick and other acarine development and reproduction the same as in insects.
Jiwei Zhu   +6 more
doaj   +1 more source

Juvenile Hormone inhibition in corpora allata from ovariectomized Blattella germanica

open access: yesPhysiological Entomology, 1994
Abstract. Ovariectomy has been used to study the role of the ovary in endocrine homeostasis. Our studies on young virgin adults of the cockroach Blattella germanica (L.) (Dictyoptera, Blattellidae) show that the cytological development of the corpora allata (CA) in ...
Maestro, José L.   +4 more
openaire   +2 more sources

Modeling the flux of metabolites in the juvenile hormone biosynthesis pathway using generalized additive models and ordinary differential equations.

open access: yesPLoS ONE, 2017
Juvenile hormone (JH) regulates development and reproductive maturation in insects. The corpora allata (CA) from female adult mosquitoes synthesize fluctuating levels of JH, which have been linked to the ovarian development and are influenced by ...
Raúl O Martínez-Rincón   +3 more
doaj   +1 more source

Nitric oxide/cGMP signaling in the corpora allata of female grasshoppers

open access: yesJournal of Insect Physiology, 2011
The corpora allata (CA) of various insects express enzymes with fixation resistant NADPHdiaphorase activity. In female grasshoppers, juvenile hormone (JH) released from the CA is necessary to establish reproductive readiness, including sound production.
Wirmer, Andrea, Heinrich, Ralf
openaire   +3 more sources

HISTOLOGY OF THE CORPORA ALLATA OF MELANOPLUS DIFFERENTIALIS (ORTHOPTERA: SALTATORIA)

open access: yesThe Biological Bulletin, 1948
1. The corpora allata of the grasshopper Melanoplus differentialis were studied histologically to determine whether these glands show changes related to their functions in the control of nymphal development and the production of ripe eggs and oviducal secretion.2. Four classes of cells were recognized in the corpora allata of this insect: a, connective
openaire   +3 more sources

Expression profile of genes encoding allatoregulatory neuropeptides in females of the spider Parasteatoda tepidariorum (Araneae, Theridiidae).

open access: yesPLoS ONE, 2019
Allatoregulatory neuropeptides are multifunctional proteins that take part in the synthesis and secretion of juvenile hormones. In insects, allatostatins are inhibitors of juvenile hormone biosynthesis in the corpora allata while allatotropins, act as ...
Marta Katarzyna Sawadro   +3 more
doaj   +1 more source

Cloning and expressing a highly functional and substrate specific farnesoic acid o‐methyltransferase from the Asian citrus psyllid (Diaphorina citri Kuwayama)

open access: yesFEBS Open Bio, 2015
The Asian citrus psyllid,Diaphorina citri, transmits a phloem‐limited bacterium,Candidatus ‘Liberibacter’ asiaticus that causes citrus greening disease.
Evelien Van Ekert   +5 more
doaj   +1 more source

Role of juvenile hormone in the hypermetabolic production of water revealed by the O2 consumption and thermovision images of larvae of insects fed a diet of dry food

open access: yesEuropean Journal of Entomology, 2013
The young larvae of insects living on dry food produce large amounts of water by the metabolic combustion of dietary lipids. The metabolic production of water needed for larval growth, previously known as hypermetabolic responses to juvenile hormone (JH),
Karel SLÁMA, Jan LUKÁŠ
doaj   +1 more source

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