title: Feeding stimulative activity of steroidal and secoiridoid glucosides and their hydrolysed derivatives toward the olive weevil (Dyscerus perforatus).
abstract: Beta-sitosteryl-D-glucoside and oleuropein isolated from the olive tree (Olea europaea) and their hydrolysed derivatives were tested by a feeding stimulative activity bioassay using the olive weevil (Dyscerus perforatus). Although the steroidal glucoside showed potent feeding stimulative activity, the activity of the aglycone (beta-sitosterol) was significantly lower than that of the glucoside. On the other hand, the difference in the activity between oleuropein, a secoiridoid glucoside, and the hydrolysed derivatives was not significant.
authors.affiliation: The Graduate School of Natural Science and Technology, Okayama University, Tsushimanaka 3-1-1, Okayama 700-8530, Japan.
authors.forename: Emiko
authors.initials: E
authors.lastname: Kadowaki
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Yoshida
authors.forename: Naomichi
authors.initials: N
authors.lastname: Baba
authors.forename: Shuhei
authors.initials: S
authors.lastname: Nakajima
mesh_terms: D000818:Animals; D005247:Feeding Behavior; D005960:Glucosides / Q000378:metabolism*; D006868:Hydrolysis; D007313:Insecta / Q000378:metabolism* / Q000472:pathogenicity; D057888:Iridoid Glucosides; D039823:Iridoids; D031658:Olea / Q000469:parasitology*; D011714:Pyrans / Q000378:metabolism; D012632:Secosteroids / Q000378:metabolism*; D013256:Steroids / Q000378:metabolism*
chemical_list: D005960:Glucosides; D057888:Iridoid Glucosides; D039823:Iridoids; D011714:Pyrans; D012632:Secosteroids; D013256:Steroids; C002769:oleuropein