Effects of an imidazole derivative (KK-42) on development and ecdysteroid production in Locusta migratoria (Insecta, Orthoptera). 1989

J P Roussel, and K Mojtahed-Zadeh, and R Lanot, and E Kuwano, and H Akai
Laboratoire de Biologie Générale, Université Louis Pasteur, (UA CNRS 672), Strasbourg, France.

The imidazole derivative KK-42 was applied in various experimental conditions to larvae and adult females of Locusta migratoria. The effect of this compound was monitored on the development of larvae, on oocyte growth in adult females and on the development of eggs laid by these females. KK-42 had only minor effects on postembryonic development; anticipation of imaginal moult was never observed. In contrast oocyte and egg development were markedly affected by KK-42: this effect is however not related to modifications of the synthesis of ecdysteroids in the ovaries.

UI MeSH Term Description Entries
D007093 Imidazoles Compounds containing 1,3-diazole, a five membered aromatic ring containing two nitrogen atoms separated by one of the carbons. Chemically reduced ones include IMIDAZOLINES and IMIDAZOLIDINES. Distinguish from 1,2-diazole (PYRAZOLES).
D007447 Invertebrate Hormones Hormones produced by invertebrates, usually insects, mollusks, annelids, and helminths. Hormones, Invertebrate
D007605 Juvenile Hormones Compounds, either natural or synthetic, which block development of the growing insect. Insect Growth Regulator,Insect Growth Regulators,Juvenile Hormone,Growth Regulators, Insect,Regulators, Insect Growth,Growth Regulator, Insect,Hormone, Juvenile,Hormones, Juvenile,Regulator, Insect Growth
D007814 Larva Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals. Maggots,Tadpoles,Larvae,Maggot,Tadpole
D009866 Oogenesis The process of germ cell development in the female from the primordial germ cells through OOGONIA to the mature haploid ova (OVUM). Oogeneses
D010063 Ovum A mature haploid female germ cell extruded from the OVARY at OVULATION. Egg,Egg, Unfertilized,Ova,Eggs, Unfertilized,Unfertilized Egg,Unfertilized Eggs
D005260 Female Females
D006110 Grasshoppers Plant-eating orthopterans having hindlegs adapted for jumping. There are two main families: Acrididae and Romaleidae. Some of the more common genera are: Melanoplus, the most common grasshopper; Conocephalus, the eastern meadow grasshopper; and Pterophylla, the true katydid. Acrididae,Locusts,Romaleidae,Grasshopper,Locust
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D026461 Ecdysteroids Steroids that bring about MOLTING or ecdysis in insects. Ecdysteroids include the endogenous insect hormones (ECDYSONE and ECDYSTERONE) and the insect-molting hormones found in plants, the phytoecdysteroids. Phytoecdysteroids are natural insecticides. Ecdysteroid

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