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. 2020 Apr 8;11:311. doi: 10.3389/fpls.2020.00311

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Copyright © 2020 Wang, Ma, Zhao, Wang, Zhang and Si.

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) and the copyright owner(s) 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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Effect of enzyme inhibitors on NOS-like and NR activities. (A) NOS-like activity in potato tubers. Dormant tubers were sprayed with DW (control) or 1 mM L-NAME for 15 min. (B) NR activity in potato tubers. Dormant tubers were sprayed with DW (control) or 1 mM tungstate for 15 min. Data are presented as the means ± SD for three replicates. When p < 0.05, the difference is significant according to Duncan multiple-range test. Values marked with the same letter indicate no significant difference.