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. 2015 Sep 15;6:678. doi: 10.3389/fpls.2015.00678

Figure 9.

Figure 9

Hypothetical interaction network between H2O2 and hormones in Populus tomentosa under salt stress. Red arrow: salt stress induced hormone biosynthesis and signal transduction in the early part of the treatment, which leads to H2O2 accumulation; Black arrow: salt stress induced the continuous activation of H2O2 homeostasis under 24-h salt stress; Blunt arrow: negative regulation.