A feeding stimulant for Manduca sexta from Solanum surattenses.
The acceptance of Solanum surattenses as a host plant for the larvae of Manduca sexta was explained by the presence of feeding stimulants in foliage. Bioassay-guided fractionation of plant extracts resulted in the isolation of a highly active compound (1), which was identified as a furostan derivative {26-O-beta-D-glucopyranosyl-(25R)-furosta-5-ene-3-beta-yl-O-alpha-L-rhamnopyranosyl-(1''-2')-O-alpha-L-rhamnopyranosyl-(1'''-3'')-O-beta-D-glucopyranoside}. This compound has the same steroidal core substructure as that in a stimulant (indioside D) previously identified from potato foliage. However, the sugar substituents attached to the core are different.
Haribal
M
M
Boyce Thompson Institute, Tower Road, Ithaca, NY 14853, USA. mmh3@cornell.edu
Renwick
J A A
JA
Attygalle
A B
AB
Kiemle
D
D
D000818:Animals; D005247:Feeding Behavior / Q000187:drug effects*; D006027:Glycosides; D007814:Larva; D018402:Manduca / Q000187:drug effects* / Q000502:physiology; D009844:Oligosaccharides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D010936:Plant Extracts / Q000737:chemistry; D032322:Solanum / Q000737:chemistry*; D013256:Steroids; D013268:Stimulation, Chemical
D006027:Glycosides; D009844:Oligosaccharides; D010936:Plant Extracts; D013256:Steroids; C428264:indioside D