title: Age-dependent arylsulphatase and sulphotransferase activities in the southern armyworm: a possible insect endocrine regulatory mechanism?
abstract: Arylsulphate and sulphotransferase activities were determined during the late larval development of the southern armyworm. Arylsulphatase titre attains a maximum during the moult and is at a minimum between moults. Sulphotransferase titre appeared to follow the inverse course. A possible enzymic regulatory mechanism for insect steroid hormones is discussed.
mesh_terms: D000818:Animals; D004440:Ecdysone / Q000378:metabolism; D007313:Insecta / Q000201:enzymology* / Q000254:growth & development; D007814:Larva / Q000201:enzymology; D008675:Metamorphosis, Biological; D009596:Nitrophenols; D013429:Sulfatases / Q000502:physiology*; D013466:Sulfurtransferases / Q000502:physiology*; D013997:Time Factors
chemical_list: D009596:Nitrophenols; D004440:Ecdysone; D013466:Sulfurtransferases; D013429:Sulfatases