@article{5c27439f2f874890852954d38b5891da,
title = "A small secreted protein from Zymoseptoria tritici interacts with a wheat E3 ubiquitin ligase to promote disease",
abstract = "Septoria tritici blotch (STB), caused by the ascomycete fungus Zymoseptoria tritici, is a major threat to wheat production worldwide. The Z. tritici genome encodes many small secreted proteins (ZtSSPs) that are likely to play a key role in the successful colonization of host tissues. However, few of these ZtSSPs have been functionally characterized for their role during infection. In this study, we identified and characterized a small, conserved cysteine-rich secreted effector from Z. tritici which has homologues in other plant pathogens in the Dothideomycetes. ZtSSP2 was expressed throughout Z. tritici infection in wheat, with the highest levels observed early during infection. A yeast two-hybrid assay revealed an interaction between ZtSSP2 and wheat E3 ubiquitin ligase (TaE3UBQ) in yeast, and this was further confirmed in planta using bimolecular fluorescence complementation and co-immunoprecipitation. Down-regulation of this wheat E3 ligase using virus-induced gene silencing increased the susceptibility of wheat to STB. Together, these results suggest that TaE3UBQ is likely to play a role in plant immunity to defend against Z. tritici.",
keywords = "Disease, E3 ubiquitin ligase, Effector, Fungal pathogen, Wheat, Zymoseptoria tritici",
author = "Karki, {Sujit Jung} and Aisling Reilly and Binbin Zhou and Maurizio Mascarello and James Burke and Fiona Doohan and Dimitar Douchkov and Patrick Schweizer and Angela Feechan",
note = "Funding Information: This work was funded by the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement no. 674964 (CerealPath), Science Foundation Ireland (SFI) Career Development Award (15/CDA/3451), SFI Strategic Partnerships Programme (16/SPP/3296), Irish Department of Agriculture, Food and the Marine Research (DAFM) Stimulus Project VICCI (14/S/819), and Science Foundation Ireland PI project 14/1A/2508. We would like to thank Dr Eleanor Gilroy (James Hutton Institute) for providing us with Inf-1 and GV3101, and Dr Stephen Kildea (Teagasc, Carlow) for providing the 553.11 and 560.11 isolates. Funding Information: This work was funded by the European Union's Horizon 2020 research and innovation programme under the Marie Sk?odowska-Curie grant agreement no. 674964 (CerealPath), Science Foundation Ireland (SFI) Career Development Award (15/CDA/3451), SFI Strategic Partnerships Programme (16/SPP/3296), Irish Department of Agriculture, Food and the Marine Research (DAFM) Stimulus Project VICCI (14/S/819), and Science Foundation Ireland PI project 14/1A/2508. We would like to thank Dr Eleanor Gilroy (James Hutton Institute) for providing us with Inf-1 and GV3101, and Dr Stephen Kildea (Teagasc, Carlow) for providing the 553.11 and 560.11 isolates. Publisher Copyright: {\textcopyright} 2020 The Author(s).",
year = "2021",
month = feb,
day = "2",
doi = "10.1093/jxb/eraa489",
language = "English",
volume = "72",
pages = "733--746",
journal = "Journal of Experimental Botany",
issn = "0022-0957",
publisher = "Oxford University Press",
number = "2",
}