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Fig. 7 | Phytopathology Research

Fig. 7

From: The phytopathogen Xanthomonas campestris scavenges hydroxycinnamic acids in planta via the hca cluster to increase virulence on its host plant

Fig. 7

Expression of the hca promoter in Chinese radish (Raphanus sativus) leaves and virulence assays of hca gene deletion strains on cabbage (Jingfeng-1) leaves. a Xcc colony formation units (CFUs) and GUS histochemical staining in infected Chinese radish leaves. 1, XC1::gusA; 2, XC1::PpobA-gusA; 3: XC1::Phca-gusA. b Quantitative analysis of different promoter-driven GUS activities in XC1 strains during infection. c Infection lesions by different mutant strains. d Quantitative analysis of the infection lesions. The virulence of the Xcc strains was tested by measuring lesion length after introducing Xcc into the vascular system of cabbage by leaf clipping. Lesion lengths were measured at 15 dpi. Data shown are averages with standard deviations for 15 plants. Values significantly different from that of strain XC1 are indicated by one (P < 0.05) or two (P < 0.01) asterisks

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Phytopathology Research

ISSN: 2524-4167