juvenile hormone

Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia.
Related to juvenile hormone: ecdysone

juvenile hormone

Any of several hormones in insects that regulate various physiological processes, especially larval development and reproduction.

juvenile hormone

a hormone present in juvenile insects and secreted by the CORPUS ALLATUM of the brain. So long as it is produced, the cuticle maintains the characteristics of the nymphal or larval form at each moult. Only when it ceases to be present or the level falls below a threshold value does the insect moult to the adult form. Juvenile hormones have been used as an effective means of controlling insects, for example, in preventing the development of adult ants during hospital infestations.


1. pertaining to young animals; young or immature.
2. a cell, tissue, disease or organism intermediate between the immature and mature forms.

juvenile aponeurotic fibroma
see multilobular chondroma and osteoma.
juvenile bovine leukosis
see bovine viral leukosis.
juvenile cellulitis
see juvenile pyoderma.
juvenile hormone
juvenile hormone insect growth hormone; regulates larval development and metamorphosis. It acts to maintain the larval stage and retard maturation to the adult stage. See also insect growth regulators.
juvenile osteoporosis
see osteogenesis imperfecta.
juvenile pancreatic atrophy
see pancreatic acinar atrophy.
juvenile sterile granulomatous dermatitis and lymphadenitis
see juvenile pyoderma.
References in periodicals archive ?
Juvenile hormone and insulin suppress lipolysis between periods of lactation during tsetse fly pregnancy.
This insecticide acts as juvenile hormone mimic and a potent inhibitor of embryogenesis, metamorphosis and adult formation.
The three gene markers selected for the juvenile hormone signaling pathway (MET, SRC, and Hb2) increased their transcription levels in the presence of TBT just after molting at 0 hr and/or at 48 hr.
In summary, integrative approaches using CA metabolomics, genomics, and proteomics are promising tactics to identify regulatory points in the flux of precursors in the JH synthesis pathway and unveil the molecular mysteries of a complex metabolic system such as the synthesis of juvenile hormone in the corpora allata of insects.
Improvement of biomass and juvenile hormone III (JH III) production from Cyperus aromaticus cell suspension culture via in situ membrane filtration technology.
Juvenile hormones and juvenoids; modeling biological effects and environmental fate.
We used a sensitive invertebrate bioassay using metamorphosis of trochophore larvae of a marine annelid, Capitella, which responded within 1 h of treatment, to determine levels of bioactive compounds, demonstrating that the compounds had juvenile hormone activity, similar to the crustacean juvenile hormone methyl farnesoate (Laufer et al.
The 273 million DNA units that make up the monarch genome also include a complete set of genes for producing juvenile hormone, which summer butterflies use to kick-start reproduction.
The genome also revealed the complete set of genes required for synthesizing juvenile hormone.
These include new class of chitin synthesis inhibitors, juvenile hormone (JH) analogous, ecdysone agonists, neo-nicotinoids and botanical insecticides such as azadirachtin.

Full browser ?