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. 2015 Jan 23;6:14. doi: 10.3389/fpls.2015.00014

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Copyright © 2015 Gully, Hander, Boller and Bartels.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Perception of Peps accelerates dark-induced senescence in a concentration and PEPR-dependent manner. (A) Four leaf discs of Col-0 plants were floated on water supplemented with 100 nM AtPep1 or without any peptide (control) and kept in darkness for the indicated time. Pictures show the discs after the incubation and bars represent the mean values of extracted chlorophyll of the four discs relative to the mean of untreated “day 0” discs. Error bars show ±1 SE of the mean and asterisks represent Student's t-test results (^* = p < 0.05, ^*** = p < 0.001). (B) Leaf discs of Col-0 and pepr1 pepr2 were treated with the indicated concentrations of AtPep1 or without any peptide (control) and kept for 4 days in darkness before taking the pictures.