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. 2015 Oct 6;6:821. doi: 10.3389/fpls.2015.00821

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Copyright © 2015 Song, Choi and Ryu.

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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Effects of gaseous 1-pentanol, 2-pentanol, and 3-pentanol on Arabidopsis systemic resistance. (A,B) Arabidopsis seedlings were planted in an I-plate, which contains two physically separated compartments that share the same headspace. Plants are exposed to volatile 3-pentanol and its isoforms (or sterile distilled water control), which evaporates from solutions in the other compartment. All plants were drop-inoculated with P. syringae pv. tomato DC3000 (Pto) 7 days after exposure to volatiles from 1 nM, 100 nM, 10 μM, and 1 mM 1-pentanol, 2-pentanol, and 3-pentanol. Disease severity (B) was measured 7 days after pathogen inoculation. The asterisk in (B) indicates significant differences (P = 0.05 by LSD) between treatment and control. Error bars represent means ± SEM; N = 12 plants per treatment.