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Fig. 5 | Phytopathology Research

Fig. 5

From: Host plant-derived benzoic acid interferes with 4-hydroxybenzoic acid degradation in the phytopathogen Xanthomonas campestris by competitively binding to PobR

Fig. 5

BA competes with 4-HBA for pobR transcription. a The pobR/pobA cluster in XC1. b The addition of BA (0.1–0.4 mM) did not affect the GUS activities of reporter strain XC1::PpobR-gusA. c Addition of 0.2–0.4 mM BA to the XC1::PpobR-gusA cultures significantly decreased pobR promoter-dependent GUS activities in presence of 0.2 mM 4-HBA. XC1::gusA was used as a negative control. The mean values of three technical repeats are shown. Statistically significant differences are indicated by one asterisk (p ≤ 0.05) or two asterisks (p ≤ 0.01)

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Phytopathology Research

ISSN: 2524-4167