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Figure 4 | BMC Plant Biology

Figure 4

From: Phytohormone-mediated interkingdom signaling shapes the outcome of rice-Xanthomonas oryzae pv. oryzae interactions

Figure 4

NaSA induces the DF QS circuit of Xoo with resultant accumulation of xanthomonadin. (A), Effect of 1 mM NaSA on xanthomonadin production of XKK12 WT (pPIP122) grown in PY broth. Data are means ± SE of three plates. Asterisks indicate statistically significant differences compared to the control (T-test: n = 3; α = 0.05). (B), Yellow pigmentation of XKK12 WT (pPIP122) grown on PSA plates containing 0 (left) or 1 mM NaSA (right). (C), Expression of xanthomonadin and DF biosynthesis gene xanB2 in XKK12 WT (pPIP122) grown in PY broth containing 0 or 1 mM NaSA. Data are means ± SE of two technical and two biological experiments. Asterisks indicate statistically significant differences compared to the control (T-test: n = 4; α = 0.05). (D), Quantification of 3-HBA (DF) and 4-HBA produced by XKK12 WT (pPIP122) grown in PY broth supplemented or not with 0.5 or 1 mM NaSA. Data are means ± SE of two technical and two biological replicates. Different letters indicate statistically significant differences (Tukey: n = 4; α = 0.05).

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