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Fig. 4 | BMC Plant Biology

Fig. 4

From: Pathogen and drought stress affect cell wall and phytohormone signaling to shape host responses in a sorghum COMT bmr12 mutant

Fig. 4

Levels of phytohormones and phenolic metabolites 3 days following inoculation with the stalk rot pathogen F. thapsinum or PDB inoculation. A. The bmr12 plants contained elevated levels of GA19 (gibberellin A19, ng/g), JA (jasmonic acid, ng/g), SA (salicylic acid, ng/g), and elevated levels of sinapic acid (ln (peak area)) across all samples. Syringic acid (ln (peak area)) was elevated in wild-type plants inoculated with F. thapsinum, but not bmr12, which are deficient in S-lignin production. Pairwise p-values between bmr12 and wild-type plants were calculated across all bmr12 and wild-type plants, regardless of other conditions, by Wilcoxon rank-sum tests. They are presented separated by watering condition and inoculum. Numbers above the boxes denote the number of plants from which the specific compound was measured. Not all phytohormones were detected in all samples. Where phytohormones were not detected, the value of the limit of detection (LOD)/√2 was substituted and group means were compared by Wilcoxon rank-sum tests

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