Fig. 5: Profiling plant hormones in root exudates of receiver plant elicited by plant volatiles.
From: Achieving similar root microbiota composition in neighbouring plants through airborne signalling
a Analysis of phytohormone changes in receiver plants due to emitter treatment in glass containers. b Concentrations of salicylic acid (SA) in root exudates, as determined by ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS). Average SA changes in receiver plants due to the release of plant volatiles by emitter plants. c Analysis of phytohormone changes in receiver plants due to β-caryophyllene treatment in glass containers. d Average SA changes in receiver plants due to the release of β-caryophyllene. e Total bacterial population in tomato plant rhizosphere measured at 0 and 4 weeks after challenge with 50 ng/mL MeSA in vitro. Water was used as a negative control. Experiments were performed in triplicate. Asterisks indicate significant differences (*P < 0.05, **P < 0.01, ***P < 0.001; one-way ANOVA, followed by Tukey’s HSD test).
