Skip to main content
Fig. 3 | Rice

Fig. 3

From: Resistance Genes and their Interactions with Bacterial Blight/Leaf Streak Pathogens (Xanthomonas oryzae) in Rice (Oryza sativa L.)—an Updated Review

Fig. 3

The SWEET gene xa13 and the executor gene Xa23 mediated immune signaling pathways triggered by Xanthomonas oryzae. The TALEs are secreted into the cytoplasm of plant cells through the type III secretion system, enter the nucleus, bind to the specific promoter elements and induce the expression of Xa13. XA13 is hijacked by TALEs to export sucrose to the apoplast, which provides nutrition to the pathogen. XA13 is also employed together with COPT1 and COPT5 by TALEs to remove toxic Cu from xylem vessels. The resistant allele xa13 with mutations in the EBEs disrupt the binding of TALEs, leading to disease resistance. Like SWEET genes, the executor R gene Xa23 is transcriptionally activated by TALEs, triggering host defense responses

Back to article page