Methoprene-tolerant alters juvenile hormone
response in insects and crustaceans.
Tamar Sztal is now working on Cyp6g2 as a major part of her PhD research, investigating the function of Cyp6g2 in juvenile hormone
titers in the hemolymph during late larval development of the tobacco hornworm, Manduca sexta (L.
The hormone-dependent function of Hsp90 in the crosstalk between 20-hydroxyecdysone and juvenile hormone
signaling pathways in insects is determined by differential phosphorylation and protein interactions.
In aphids, the absence of juvenile hormone
causes loss of one of the sex chromosomes during oocyte maturation (Hales and Mittler 1987).
Methoprene is a pesticide that acts as a juvenile hormone
analog in insects (Restifo & Wilson 1998).
After 200 or so organ transplants in mealworm beetles, he and Sheffield colleague Jens Rolff propose that a burst of so-called juvenile hormone
triggered by mating revs up the insects' reproductive system but with a dire cost: a weakened immune system.
Lepidoptera: Noctuidae) as affected by some juvenile hormone
There is some evidence that juvenile hormone
, the hormone that regulates development and sometimes reproduction, acts through a steroidlike-receptor pathway.
Topical application of the juvenile hormone
analog, methoprene, on the dorsal surface of adult male Caribbean fruit flies, Anastrepha suspensa (Loew) (Diptera: Tephritidae), increases male sexual success (Pereira et al.
He speculates that it might bind to the much-studied juvenile hormone
considered key in controlling the queen-worker split.
Another promising avenue of investigation involves the application of juvenile hormone
(or synthetic analogs) to newly emerged males.
Consequently, researchers have been investigating other control strategies, many of which use growth inhibitors such as a chemical called juvenile hormone
to try to reduce the number of termites in the soil.
McNeil of Universite Laval in Sainte-Foy, Quebec, wanted to know if the same chemical, called juvenile hormone
, that controls migration and ovary development in many insects might be responsible for the armyworm moth's release of pheromone and the behavior patterns, termed "calling," associated with this release.
the hormone, called juvenile hormone
III (JH III), is one of the so-called juvenoid hormones important in the molting process, a stepwise shedding of external skeletons as an insect grows.