Author: John Doe
Internal reviewer: Jane Doe
Expert reviewer: WANTED!

Class: XopAA
Family: XopAA
Prototype: Ecf (Xanthomonas euvesicatoria pv. euvesicatoria, ex Xanthomonas campestris pv. vesicatoria; strain 75-3)
GenBank ID: AAW88576.1 (688 aa)
RefSeq ID: WP_041855088.1 (688 aa)
Synonym: Ecf (early chlorosis factor)
3D structure: Unknown

The xopAA gene, at that time called ecf for early chlorosis factor, was identified as a novel locus from X. euvesicatoria pv. euvesicatoria (Xee) that induces early chlorosis in tomato and several nonhosts (Morales et al., 2005). To examine the factor(s) that induce(s) the response of bean to Xee tomato races, a library of DNA from Xee strain 75-3 was screened in the bean pathogen X. phaseoli pv. phaseoli strain 85-6. One cosmid clone, containing the xopAA gene, converted the host response from a normal watersoaking to a bright yellow chlorosis on bean cvs. Sprite and Bush Blue Lake (Morales et al., 2005).

DNA hybridization experiments suggested that xopAA is highly specific to Xee (Morales et al., 2005).

Li S, Wang Y, Wang S, Fang A, Wang J, Liu L, Zhang K, Mao Y, Sun W (2015). The type III effector AvrBs2 in Xanthomonas oryzae pv. oryzicola suppresses rice immunity and promotes disease development. Mol. Plant Microbe Interact. 28: 869-880. DOI: 10.1094/MPMI-10-14-0314-R

Morales CQ, Posada J, Macneale E, Franklin D, Rivas I, Bravo M, Minsavage J, Stall RE, Whalen MC (2005). Functional analysis of the early chlorosis factor gene. Mol. Plant Microbe Interact. 18: 477-486. DOI: 10.1094/MPMI-18-0477

Yamaguchi K, Nakamura Y, Ishikawa K, Yoshimura Y, Tsuge S, Kawasaki T (2013). Suppression of rice immunity by Xanthomonas oryzae type III effector Xoo2875. Biosci. Biotechnol. Biochem. 77: 796-801. DOI: 10.1271/bbb.120929