Puccinia striiformis f. sp. tritici effectors in wheat immune responses

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Wu N., ÖZKETEN A. Ç., Cheng Y., Jiang W., Zhou X., Zhao X., ...More

Frontiers in Plant Science, vol.13, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Review
  • Volume: 13
  • Publication Date: 2022
  • Doi Number: 10.3389/fpls.2022.1012216
  • Journal Name: Frontiers in Plant Science
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Directory of Open Access Journals
  • Keywords: Puccinia striiformis f, sp, tritici (Pst), effectors, secretome, wheat, yellow (stripe) rust, Nicotiana benthamiana, PTI, ETI, ADULT-PLANT RESISTANCE, LEUCINE-RICH REPEAT, PROTEOMIC ANALYSIS, MOSAIC-VIRUS, TRANSCRIPTOME ANALYSIS, STRIPE RUST, GENE, PROTEINS, EXPRESSION, SUPPRESSION
  • Middle East Technical University Affiliated: Yes


Copyright © 2022 Wu, Ozketen, Cheng, Jiang, Zhou, Zhao, Guan, Xiang and Akkaya.The obligate biotrophic fungus Puccinia striiformis f. sp. tritici, which causes yellow (stripe) rust disease, is among the leading biological agents resulting in tremendous yield losses on global wheat productions per annum. The combatting strategies include, but are not limited to, fungicide applications and the development of resistant cultivars. However, evolutionary pressure drives rapid changes, especially in its “effectorome” repertoire, thus allowing pathogens to evade and breach resistance. The extracellular and intracellular effectors, predominantly secreted proteins, are tactical arsenals aiming for many defense processes of plants. Hence, the identity of the effectors and the molecular mechanisms of the interactions between the effectors and the plant immune system have long been targeted in research. The obligate biotrophic nature of P. striiformis f. sp. tritici and the challenging nature of its host, the wheat, impede research on this topic. Next-generation sequencing and novel prediction algorithms in bioinformatics, which are accompanied by in vitro and in vivo validation approaches, offer a speedy pace for the discovery of new effectors and investigations of their biological functions. Here, we briefly review recent findings exploring the roles of P. striiformis f. sp. tritici effectors together with their cellular/subcellular localizations, host responses, and interactors. The current status and the challenges will be discussed. We hope that the overall work will provide a broader view of where we stand and a reference point to compare and evaluate new findings.