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bacteria:t3e:avrbs2 [2023/07/18 08:22] – [AvrBs2] rkoebnikbacteria:t3e:avrbs2 [2025/02/21 11:40] (current) – joana_costa
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-====== AvrBs2 ======+====== The Type III Effector AvrBs2 from //Xanthomonas// ======
  
 Author: [[https://www.researchgate.net/profile/Spela_Alic|Špela Alič]]\\ Author: [[https://www.researchgate.net/profile/Spela_Alic|Špela Alič]]\\
-Internal reviewer: [[https://www.researchgate.net/profile/Ralf_Koebnik|Ralf Koebnik]]\\ +Internal reviewer: [[https://www.researchgate.net/profile/Ralf_Koebnik|Ralf Koebnik]]
-Expert reviewer: **WANTED!**+
  
 Class: AvrBs2\\ Class: AvrBs2\\
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   * The loss of a functional //avrBs2//  gene was found to affect the fitness of //Xcv//  and revealed fitness costs for three additional, plasmid-borne effector genes (//avrBs1//, //avrBs3//, //avrBs4//) in //Xcv//, indicating that complex functional interactions exist among effector genes (Wichmann & Bergelson, 2004).   * The loss of a functional //avrBs2//  gene was found to affect the fitness of //Xcv//  and revealed fitness costs for three additional, plasmid-borne effector genes (//avrBs1//, //avrBs3//, //avrBs4//) in //Xcv//, indicating that complex functional interactions exist among effector genes (Wichmann & Bergelson, 2004).
-  * AvrBs2 has been demonstrated to be required for full virulence of //Xcv//, //X. oryzae//  pv. //oryzicola//, //X. phaseoli //pv. //manihotis//  (aka //X. axonopodis//  pv. //manihotis//) (Zhao //et al//., 2011; Li //et al//., 2015; Mutka //et al.//, 2016; Medina //et al//., 2018).+  * AvrBs2 has been demonstrated to be required for full virulence of //Xcv//, //X. oryzae//  pv. //oryzicola//, //X. phaseoli//  pv. //manihotis//  (aka //X. axonopodis//  pv. //manihotis//) (Zhao //et al//., 2011; Li //et al//., 2015; Mutka //et al.//, 2016; Medina //et al//., 2018).
   * Recognition of //AvrBs2//  by OsHRL makes rice more resistant against //X. oryzae//  pv. //oryzicola//  (Park //et al//., 2010).   * Recognition of //AvrBs2//  by OsHRL makes rice more resistant against //X. oryzae//  pv. //oryzicola//  (Park //et al//., 2010).
-  * It was shown in pepper and tomato lines without //Bs2 //that mutations of catalytic residues in the glycerolphosphodiesterase did not interfere with the ability of the plant to recognize AvrBs2 through the cognate R gene //Bs2//  and trigger disease resistance. This finding suggests that recognition of AvrBs2 is independent of its glycerolphosphodiesterase enzyme activity (Zhao //et al//., 2011).+  * It was shown in pepper and tomato lines without //Bs2//  that mutations of catalytic residues in the glycerolphosphodiesterase did not interfere with the ability of the plant to recognize AvrBs2 through the cognate R gene //Bs2//  and trigger disease resistance. This finding suggests that recognition of AvrBs2 is independent of its glycerolphosphodiesterase enzyme activity (Zhao //et al//., 2011).
   * AvrBs2 contributes to //X. oryzae//  pv. //oryzicola//  virulence by suppressing PAMP-triggered defense responses in rice (Li //et al//., 2015).   * AvrBs2 contributes to //X. oryzae//  pv. //oryzicola//  virulence by suppressing PAMP-triggered defense responses in rice (Li //et al//., 2015).
   * AvrBs2 transiently expressed in //Arabidopsis//  protoplasts suppressed flg22-induced NHO1 expression (Li //et al//., 2015).   * AvrBs2 transiently expressed in //Arabidopsis//  protoplasts suppressed flg22-induced NHO1 expression (Li //et al//., 2015).
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 === Phenotypes === === Phenotypes ===
  
-  * AvrBs2 has been demonstrated to be required for full virulence of //X. euvesicatoria//  pv. //euvesicatoria//  (aka //X. campestris//  pv. //vesicatoria//), //X. oryzae//  pv. //oryzicola//, //X. phaseoli //pv. //manihotis//  (aka //X. axonopodis//  pv. //manihotis//) (Zhao //et al//., 2011; Li //et al//., 2015; Mutka //et al.//, 2016; Medina //et al//., 2018).+  * AvrBs2 has been demonstrated to be required for full virulence of //X. euvesicatoria//  pv. //euvesicatoria//  (aka //X. campestris//  pv. //vesicatoria//), //X. oryzae//  pv. //oryzicola//, //X. phaseoli//  pv. //manihotis//  (aka //X. axonopodis//  pv. //manihotis//) (Zhao //et al//., 2011; Li //et al//., 2015; Mutka //et al.//, 2016; Medina //et al//., 2018).
   * Recognition of AvrBs2 by OsHRL makes rice more resistant against //X. oryzae//  pv. //oryzicola//  (Park //et al//., 2010).   * Recognition of AvrBs2 by OsHRL makes rice more resistant against //X. oryzae//  pv. //oryzicola//  (Park //et al//., 2010).
   * It was shown in pepper and tomato lines without //Bs2 //that mutations of catalytic residues in the glycerolphosphodiesterase did not interfere with the ability of the plant to recognize AvrBs2 through the cognate R gene //Bs2//  and trigger disease resistance. This finding suggests that recognition of AvrBs2 is independent of its glycerolphosphodiesterase enzyme activity (Zhao //et al//., 2011).   * It was shown in pepper and tomato lines without //Bs2 //that mutations of catalytic residues in the glycerolphosphodiesterase did not interfere with the ability of the plant to recognize AvrBs2 through the cognate R gene //Bs2//  and trigger disease resistance. This finding suggests that recognition of AvrBs2 is independent of its glycerolphosphodiesterase enzyme activity (Zhao //et al//., 2011).
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 Coplin DL (1989). Plasmids and their role in the evolution of plant pathogenic bacteria. Ann. Rev. Phytopathol. 27: 187-212. DOI: [[https://doi.org/10.1146/annurev.py.27.090189.001155|10.1146/annurev.py.27.090189.001155]] Coplin DL (1989). Plasmids and their role in the evolution of plant pathogenic bacteria. Ann. Rev. Phytopathol. 27: 187-212. DOI: [[https://doi.org/10.1146/annurev.py.27.090189.001155|10.1146/annurev.py.27.090189.001155]]
  
-Deb S, Ghosh P, Patel HK, Sonti RV (2020). Interaction of the //Xanthomonas//  effectors XopQ and XopX results in induction of rice immune responses. Plant J., in press. DOI: [[https://doi.org/10.1111/tpj.14924|10.1111/tpj.14924]]+Deb S, Ghosh P, Patel HK, Sonti RV (2020). Interaction of the //Xanthomonas//  effectors XopQ and XopX results in induction of rice immune responses. Plant J. 104: 332-350. DOI: [[https://doi.org/10.1111/tpj.14924|10.1111/tpj.14924]]
  
 Gassmann W, Dahlbeck D, Chesnokova O, Minsavage GV, Jones JB, Staskawicz BJ (2000). Molecular evolution of virulence in natural field strains of //Xanthomonas campestris//  pv. //vesicatoria//. J. Bacteriol. 182: 7053-7059. DOI: [[https://doi.org/10.1128/jb.182.24.7053-7059.2000|10.1128/jb.182.24.7053-7059.2000]] Gassmann W, Dahlbeck D, Chesnokova O, Minsavage GV, Jones JB, Staskawicz BJ (2000). Molecular evolution of virulence in natural field strains of //Xanthomonas campestris//  pv. //vesicatoria//. J. Bacteriol. 182: 7053-7059. DOI: [[https://doi.org/10.1128/jb.182.24.7053-7059.2000|10.1128/jb.182.24.7053-7059.2000]]
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 Habyarimana F, Ahmer BM (2013). More evidence for secretion signals within the mRNA of type 3 secreted effectors. J. Bacteriol. 195: 2117-2118. DOI: [[https://doi.org/10.1128/JB.00303-13|10.1128/JB.00303-13]] Habyarimana F, Ahmer BM (2013). More evidence for secretion signals within the mRNA of type 3 secreted effectors. J. Bacteriol. 195: 2117-2118. DOI: [[https://doi.org/10.1128/JB.00303-13|10.1128/JB.00303-13]]
  
-Ignatov AN, Monakhos GF, Dzhalilov FS, Pozmogova GV (2002). Avirulence gene from //Xanthomonas campestris //pv. //campestris//  homologous to the //avrBs2//  locus is recognized in race-specific reaction by two different resistance genes in Brassicas. Genetika 38: 1656-1662 [Article in Russian] / Russian J. Genet. 38: 1404-1410. DOI: [[https://doi.org/10.1023/A:1021643907032|10.1023/A:1021643907032]]+Ignatov AN, Monakhos GF, Dzhalilov FS, Pozmogova GV (2002). Avirulence gene from //Xanthomonas campestris//  pv. //campestris//  homologous to the //avrBs2//  locus is recognized in race-specific reaction by two different resistance genes in Brassicas. Genetika 38: 1656-1662 [Article in Russian] / Russian J. Genet. 38: 1404-1410. DOI: [[https://doi.org/10.1023/A:1021643907032|10.1023/A:1021643907032]]
  
 Kearney B, Staskawicz BJ (1990). Widespread distribution and fitness contribution of //Xanthomonas campestris//  avirulence gene //avrBs2//. Nature 346: 385-386. DOI: [[https://doi.org/10.1038/346385a0|10.1038/346385a0]] Kearney B, Staskawicz BJ (1990). Widespread distribution and fitness contribution of //Xanthomonas campestris//  avirulence gene //avrBs2//. Nature 346: 385-386. DOI: [[https://doi.org/10.1038/346385a0|10.1038/346385a0]]
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 Timilsina S, Abrahamian P, Potnis N, Minsavage GV, White FF, Staskawicz BJ, Jones JB, Vallad GE, Goss EM (2016). Analysis of sequenced genomes of //Xanthomonas perforans//  identifies candidate targets for resistance breeding in tomato. Phytopathology 106: 1097-1104. DOI: [[https://doi.org/10.1094/PHYTO-03-16-0119-FI|10.1094/PHYTO-03-16-0119-FI]]. Corrected in: Phytopathology (2019) 109: 1820. DOI: [[https://doi.org/10.1094/PHYTO-03-16-0119.1-FI|10.1094/PHYTO-03-16-0119.1-FI]] Timilsina S, Abrahamian P, Potnis N, Minsavage GV, White FF, Staskawicz BJ, Jones JB, Vallad GE, Goss EM (2016). Analysis of sequenced genomes of //Xanthomonas perforans//  identifies candidate targets for resistance breeding in tomato. Phytopathology 106: 1097-1104. DOI: [[https://doi.org/10.1094/PHYTO-03-16-0119-FI|10.1094/PHYTO-03-16-0119-FI]]. Corrected in: Phytopathology (2019) 109: 1820. DOI: [[https://doi.org/10.1094/PHYTO-03-16-0119.1-FI|10.1094/PHYTO-03-16-0119.1-FI]]
 +
 +===== Acknowledgements =====
 +
 +This fact sheet is based upon work from COST Action CA16107 EuroXanth, supported by COST (European Cooperation in Science and Technology).
  
bacteria/t3e/avrbs2.1689664977.txt.gz · Last modified: 2023/07/18 08:22 by rkoebnik

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