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. 2020 Jun 19;10:9963. doi: 10.1038/s41598-020-66900-2

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Capsaicin triggers oxidative innate immunity. (a) Capsaicin activated the expression of target genes associated with oxidative innate immunity. DUOX, Attacin, and Diptericin mRNA levels for capsaicin-associated wild-type flies. 80 mM capsaicin was used. (b,c) Regulation of ROS activity in the gut. ROS activity was measured with DHE. 80 mM capsaicin was used. n = 6, three replicates. (d,e) Survival of Duox-silenced adult flies challenged with capsaicin. 80 mM was used. n = 150; The independent samples t-test was used to assess the mean deviation of each column. Values represent mean ± S.E.M. **P < 0.01; ***P < 0.001.