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. 2019 Jul 1;45(7):626–637. doi: 10.1007/s10886-019-01085-1

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© The Author(s) 2019

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 4 — Single-sensillum recordings (SSR) from parasitoid-detecting olfactory receptors. a Schematic of D. melanogaster and D. suzukii (3rd antennal segment; funiculus) depicting locations of parasitoid-sensitive sensillum types. b Shown are single sensillum recordings (SSR) of antennal basiconic sensillum (ab10) responses towards the diagnostic parasitoid odor, actinidine, and towards the leaf extract of the plant species Actinidia polygama, as well as towards the solvent control, where each odor was tested across the same sensillum. Both the synthetic parasitoid odor and the extracted plant sample evoke similar responses in the same neuron, which has been shown to house Or49a and Or85f in D. melanogaster adults. c Quantified SSR responses towards plant extracts and the synthetic parasitoid odors, where only the tested Actinidia plant species produced activation of this neuron. These plant extracts were not significantly different in the strength of response from the synthetic odor (actinidine) in spikes per second, but the synthetic odor often produced a longer duration of activation than the plant samples. Means with the same letter are not significantly different from one another (α = 0.05)