Fig. 9 | Communications Biology

Fig. 9

From: Cotton plant defence against a fungal pathogen is enhanced by expanding BLADE-ON-PETIOLE1 expression beyond lateral-organ boundaries

Fig. 9

GhBOP1 autonomously expanding expression beyond LOBS increases cotton plant defence against V. dahliae. a Schematic diagram showing GhBOP1 can expand expression out of LOBs in cotton stem after pathogen infection. The area of solid or point lines surrounding represent LOBs. The green, brown, and blue spheres represent GhBP1, GhTGA3, and GhBOP1, respectively. b Working model of GhBOP1 in plant defence process. GhBP1 expression is repressed under the fungus infection, resulting in GhBOP1 ectopic expression. GhBOP1 acts as a positive regulator participating in plant defence through two functions. Function I, GhBOP1 interacts GhTGA3 and promotes GhTGA3 activation activity for GhPR1 promoter. Function II, GhBOP1 interacts with an unknown protein, which could be binding the cis-element of lignin synthesis-related genes, enhancing lignin accumulation

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