| Title: | "Acylated flavonol glycosides as probing stimulants of a bean aphid, Megoura crassicauda, from Vicia angustifolia" |
| Author(s): | Takemura M; Nishida R; Mori N; Kuwahara Y; |
| Address: | "Laboratory of Chemical Ecology, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan" |
| DOI: | 10.1016/s0031-9422(02)00226-1 |
| ISSN/ISBN: | 0031-9422 (Print) 0031-9422 (Linking) |
| Abstract: | "A bean aphid, Megoura crassicauda, which feeds selectively on the plant genus Vicia (Fabaceae), was found to be stimulated to probe an extract solution of the host plant, narrowleaf vetch, Vicia angustifolia L., depositing characteristic stylet sheaths on a parafilm membrane. Two acylated flavonol glycosides were isolated as the specific probing stimulants from the extracts and characterized as quercetin 3-O-alpha-L-arabinopyranosyl-(1-->6)-[2'-O-(E)-p-coumaroyl]-beta-D-glucopyranoside and quercetin 3-O-alpha-L-arabinopyranosyl-(1-->6)-[2'-O-(E)-p-coumaroyl]-beta-D-galactopyranoside. A mixture of these compounds in the same equivalency strongly induced the probing response from M. crassicauda, suggesting their kairomonal roles during host recognition" |
| Keywords: | Acylation Animals Aphids/*drug effects Fabaceae/*chemistry Feeding Behavior/*drug effects Flavonoids/*chemistry/isolation & purification/*pharmacology Glycosides/*chemistry/isolation & purification/*pharmacology Magnetic Resonance Spectroscopy Molecular S; |
| Notes: | "MedlineTakemura, Masami Nishida, Ritsuo Mori, Naoki Kuwahara, Yasumasa eng Research Support, Non-U.S. Gov't England 2002/08/10 Phytochemistry. 2002 Sep; 61(2):135-40. doi: 10.1016/s0031-9422(02)00226-1" |
