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Molecular Diagnosis and Diversity for Regulated Xanthomonas

Bacterial virulence factors

Plant resistance genes

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This DokuWiki is based upon work from COST Action CA16107 EuroXanth, supported by COST (European Cooperation in Science and Technology)

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Author: John Doe
Reviewer: Jane Doe

Class: XopAM
Family: XopAM
Prototype: Xop? (Xanthomonas; strain)
RefSeq ID:
3D structure: Unknown

Biological function

How discovered?

(Experimental) evidence for being a T3E



Mutagenesis of type III effectors in X. campestris pv. campestris confirmed that xopAM functions as a second avirulence gene on plants of the Arabidopsis Col-0 ecotype (Guy et al., 2013).


Enzymatic function

Interaction partners


In xanthomonads

In other plant pathogens/symbionts

Yes (e.g., Pseudomonas syringae, Ralstonia solanacearum) (Mukaihara et al., 2004; Kvitko et al., 2009)


Guy E, Genissel A, Hajri A, Chabannes M, David P, Carrere S, Lautier M, Roux B, Boureau T, Arlat M, Poussier S, Noël LD (2013). Natural genetic variation of Xanthomonas campestris pv. campestris pathogenicity on Arabidopsis revealed by association and reverse genetics. mBio 4: e00538-12. DOI: 10.1128/mBio.00538-12. Erratum in: MBio (2013) 4: e00978-13.

Jiang W, Jiang BL, Xu RQ, Huang JD, Wei HY, Jiang GF, Cen WJ, Liu J, Ge YY, Li GH, Su LL, Hang XH, Tang DJ, Lu GT, Feng JX, He YQ, Tang JL (2009). Identification of six type III effector genes with the PIP box in Xanthomonas campestris pv. campestris and five of them contribute individually to full pathogenicity. Mol. Plant Microbe Interact. 22: 1401-1411. DOI: 10.1094/MPMI-22-11-1401

Kvitko BH, Park DH, Velásquez AC, Wei CF, Russell AB, Martin GB, Schneider DJ, Collmer A (2009). Deletions in the repertoire of Pseudomonas syringae pv. tomato DC3000 type III secretion effector genes reveal functional overlap among effectors. PLoS Pathog. 5: e1000388. DOI: 10.1371/journal.ppat.1000388

Mukaihara T, Tamura N, Murata Y, Iwabuchi M (2004). Genetic screening of Hrp type III-related pathogenicity genes controlled by the HrpB transcriptional activator in Ralstonia solanacearum. Mol. Microbiol. 54: 863-875. DOI: 10.1111/j.1365-2958.2004.04328.x

bacteria/t3e/xopam.txt · Last modified: 2020/08/09 18:04 by rkoebnik