Fig. 6From: Oligogalacturonic acids promote tomato fruit ripening through the regulation of 1-aminocyclopropane-1-carboxylic acid synthesis at the transcriptional and post-translational levelsRelative expression levels of ethylene synthesis-related genes within 24 h. LeACS1A (a), LeACS2 (b), LeACS4 (c), LeACS6 (d) and LeACO1 (e) gene expression values were presented relative to the Actin. Vertical bars indicate the SD (n = 3). Asterisks indicate statistically significant differences compared with the control group (*P < 0.05; **P < 0.01, Student’s t-test)Back to article page