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. 2021 May 24;7(6):814–825. doi: 10.1038/s41477-021-00920-2

Extended Data Fig. 3. Commensals can degrade/modify flg22 in vitro.

Extended Data Fig. 3

a, Schematic diagram showing how bacterial supernatants are collected. Root lengths of plants coinoculated with the supernatant of different bacteria and b, 1 μM flg22 (pWER::FLS2-GFP) or c, 1 μM Atpep1 (Col-0). All strains used in these experiments exhibited RGI suppressive activity as shown in Fig. 1. d, Root lengths of Col-0 plants treated with the supernatant of Janibacter 101 after different treatments shown in (a). e, Mass spectrometry analyses detecting the intact flg22 peptide (QRLSTGSRINSAKDDAAGLQIA [M + 4H] 568.8056) by estimating the peak area generated by Skyline. All strains used in this experiment exhibited suppressive activity on flg22-mediated RGI. n=total number of biological samples collected from three biological replicates (ED Fig. 3b–e). Asterisks or different letters indicate statistical significance (two-sided Dunn’s Kruskal Wallis or two-sided Dunnett’s test, p < 0.05). The box plots centre on the median and extend to the 25th and 75th percentiles, and the whiskers extend to the furthest point within the range of 1.5× the interquartile range.

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