1. Volume 19, Issue 16, Pages 1368-1372 (August 2009)
Orchid Mimics Honey Bee Alarm Pheromone in Order to Attract Hornets for Pollination 
Jennifer Brodmann, Robert Twele, Wittko Francke, Luo Yi-bo, Song Xi-qiang, Manfred Ayasse 
Current Biology 
Volume 19, Issue 16, Pages (August 2009)
DOI: /j.cub
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2. Figure 1 Dendrobium sinense Flower and Vespa bicolor Forager
D. sinense flower (A) and V. bicolor forager with pollinia stuck onto the thorax (B). (Photographs by J.B. and S.X.-q.)
Current Biology  , DOI: ( /j.cub )
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3. Figure 2
Approaches of Hornets to Various Odor Samples Tested in a Flight Cage
Comparison of the attractiveness of the scent from an orchid flower and honey bee dummies impregnated with flower extract or pentane solvent in a flight cage (Mann-Whitney U test + Benjamini-Hochberg correction [28], p ≤ 0.05, n = 6). Bars represent median number of approaches ± standard error of the mean. Different letters indicate significance differences between the test groups.
Current Biology  , DOI: ( /j.cub )
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4. Figure 3 Electrophysiologically Active Compounds
Electrophysiologically active compounds in the flower extract of D. sinense (A) and comparison of the electrophysiologically active compounds of a flower extract of D. sinense and the body surface extract of an Apis cerana forager (B). Simultaneous recordings of gas chromatography (flame ionization detector [FID]) and electroantennographic detector (EAD) signals obtained with flower extracts of D. sinense via the antenna of a V. bicolor worker were performed on a polar DB-WAX capillary column. Benzyl acetate, benzyl alcohol, octadecan-1-ol, eicosan-1-ol, and (Z)-11-eicosen-1-ol were electrophysiologically active in the flower extract; octadecan-1-ol, eicosan-1-ol, and (Z)-11-eicosen-1-ol also were detected in the A. cerana body surface extract.
Current Biology  , DOI: ( /j.cub )
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5. Figure 4 Attraction of Hornets to Various Odor Samples
Comparison of the attractiveness of the odor from an orchid flower, the flower extract, the synthetic mixture of the EAD-active compounds of the flower extract (s. D. sinense), and (Z)-11-eicosen-1-ol in a Y tube olfactometer (sign test, ∗p ≤ 0.05, ∗∗p ≤ 0.001, n = 20 for each test).
Current Biology  , DOI: ( /j.cub )
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