The fly factor phenomenon is mediated by interkingdom signaling between bacterial symbionts and their blow fly hosts.

摘要: We tested the recent hypothesis that "fly factor" phenomenon (food currently or previously fed on by flies attracts more than same type of food kept inaccessible to flies) is mediated bacterial symbionts deposited with feces regurgitated feeding flies. allowed laboratory-reared black blow flies, Phormia regina (Meigen), feed and defecate Luria-Bertani medium solidified agar, isolated seven morphologically distinct colonies. identified these using matrix-assisted laser desorption/ionization mass spectrometry sequencing 16S rRNA gene. In two-choice laboratory experiments, traps baited cultures Proteus mirabilis Hauser, Morganella morganii subsp. sibonii Jensen, Serratia marcescens Bizio, captured significantly corresponding control jars tryptic soy agar only. A mixture strains as a trap bait was attractive single isolate (M. m. sibonii). field experiment, P. M. in combination either alone control. As evident gas chromatography-mass spectrometry, odor profiles isolates differ, which may explain additive effect bacteria attractiveness baits. "generalist bacteria," growing animal protein (beef liver) plant (tofu) are similarly effective attracting Bacteria-derived airborne semiochemicals appear mediate foraging inform their oviposition decisions.