title: Antibacterial activity of 4-oxo-(E)-2-hexenal from adults and nymphs of the heteropteran, Dolycoris baccarum (Heteroptera: Pentatomidae).
abstract: We identified 4-oxo-(E)-2-hexenal (4-OHE) as a common component of the secretion from both Dolycoris baccarum nymphs (66.5 ± 34.7 µg/bug) and adults (87.4 ± 48.0 µg/bug) by GC/MS. We also found that this compound inhibited the growth of bacteria starting at 10 µg. The stronger antibacterial activity of 4-OHE than that of (E)-2-hexenal and (E)-2-octenal might be explained by the reactivity of α,β-unsaturated aldehydes with nucleophilic molecules.
authors.affiliation: Department of Biological Production, Akita Prefectural University, Akita, Japan. noge@akita-pu.ac.jp
authors.forename: Koji
authors.initials: K
authors.lastname: Noge
authors.forename: Hiroki
authors.initials: H
authors.lastname: Kimura
authors.forename: Makoto
authors.initials: M
authors.lastname: Abe
authors.forename: Judith X
authors.initials: JX
authors.lastname: Becerra
authors.forename: Shigeru
authors.initials: S
authors.lastname: Tamogami
mesh_terms: D000447:Aldehydes / Q000302:isolation & purification / Q000494:pharmacology*; D000818:Animals; D000900:Anti-Bacterial Agents / Q000302:isolation & purification / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D020062:Heteroptera / Q000737:chemistry*; D009758:Nymph / Q000737:chemistry
chemical_list: C506591:4-oxo-(E)-2-hexenal; D000447:Aldehydes; D000900:Anti-Bacterial Agents