Table 2 Mean rates of growth inhibition (% ±SE) of Seiridium cardinale by 15 terpenes (11 monoterpenes, two sesquiterpenes and two diterpenes) and one fungicide relative to the inhibition by acetone (control).

From: Terpene arms race in the Seiridium cardinale – Cupressus sempervirens pathosystem

  1. The in planta concentrations tested the same terpene concentrations as those in the phloem (Table 1) in the different treatments (control, infected NR and infected Agrimed) applied per gram of malt extract agar (MEA). The fixed concentrations tested three arbitrary concentrations (0.25, 0.50 and 1.0 mg g−1 MEA) for comparing the inhibitory power among several terpenes. Different letters indicate significant (one-way ANOVA, Tukey’s post hoc test, P < 0.05) and marginally significant (P < 0.10, in italics) differences within the treatments of a tree group. Comparisons for the in planta concentration tests were performed between treatments (horizontal) and comparisons for the fixed concentrations were performed within the treatments (vertical). The asterisks (*) for (+)-α-terpineol indicate that this test was performed with the concentration found in a previous study26, because we did not detect this compound in the current study.
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