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Fig. 5 | BMC Plant Biology

Fig. 5

From: N-3-oxo-octanoyl-homoserine lactone-mediated priming of resistance to Pseudomonas syringae requires the salicylic acid signaling pathway in Arabidopsis thaliana

Fig. 5

Effects of 3OC8-HSL application on SA accumulation and the expression of SA biosynthesis genes. a, Accumulation of free SA measured by HPLC in Arabidopsis plants after pretreatment of the roots with 10 μM 3OC8-HSL for 48 h and subsequent spray-inoculation of the leaves with PstDC3000 (OD600 = 0.1). Leaves were harvested at the indicated times 0 h, 6 h, 12 h, 24 h. b-d, Relative expression of ICS1, SARD1, and CBP60g by quantitative RT-PCR using ACTIN for normalization. Values are means ±SD of four independent experiments. Different letters indicate statistically significant differences (P < 0.05, Duncan’s test)

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