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. 2019 May 13;28(6):1115–1126. doi: 10.1002/pro.3628

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© 2019 The Authors. Protein Science published by Wiley Periodicals, Inc. on behalf of The Protein Society.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Biological assays of the RALF8 peptide. (a) Cytoplasmic calcium mobilization activity of the RALF8 peptide. (b) Image of Arabidopsis thaliana seedlings grown in the presence of RALF8. Three‐day‐old germinating seedlings were grown in the absence (top panel) or presence (bottom panel) of 1 μM RALF8 peptide for 2 days. FERONIA receptor kinase mutant (fer‐4) showed insensitivity to RALF8‐caused inhibition compared with the wild type. (c) Dose–response curve of RALF8 inhibitory effects on the wild type and fer‐4 mutant seedlings. Data are shown as the mean ± SD, n = 6.