Fig. 3

Plant biochemistry levels in response to drought and Xylella fastidiosa infection. A Mean (± SE) total phenolic levels, B mean (± SE) total flavonoid levels, C mean (± SE) total stilbenoid levels, D mean (± SE) total amino acids levels, E mean (± SE) fructose levels, and F mean (± SE) glucose levels for the 2019 experiment. ANOVA test statistics provided. Different letters represent significantly different pairwise comparisons as determined by LSD tests. C = well-watered controls; D = water deficit treated; N = non-infected controls; X = Xf-infected