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Int. J. Mol. Sci. 2015, 16(10), 23177-23194;

Regulatory Proteolysis in Arabidopsis-Pathogen Interactions

Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Herman Ottó út 15, 1022 Budapest, Hungary
Author to whom correspondence should be addressed.
Academic Editor: Jan Schirawski
Received: 2 August 2015 / Revised: 7 September 2015 / Accepted: 15 September 2015 / Published: 24 September 2015
(This article belongs to the Special Issue Plant Microbe Interaction)
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Approximately two and a half percent of protein coding genes in Arabidopsis encode enzymes with known or putative proteolytic activity. Proteases possess not only common housekeeping functions by recycling nonfunctional proteins. By irreversibly cleaving other proteins, they regulate crucial developmental processes and control responses to environmental changes. Regulatory proteolysis is also indispensable in interactions between plants and their microbial pathogens. Proteolytic cleavage is simultaneously used both by plant cells, to recognize and inactivate invading pathogens, and by microbes, to overcome the immune system of the plant and successfully colonize host cells. In this review, we present available results on the group of proteases in the model plant Arabidopsis thaliana whose functions in microbial pathogenesis were confirmed. Pathogen-derived proteolytic factors are also discussed when they are involved in the cleavage of host metabolites. Considering the wealth of review papers available in the field of the ubiquitin-26S proteasome system results on the ubiquitin cascade are not presented. Arabidopsis and its pathogens are conferred with abundant sets of proteases. This review compiles a list of those that are apparently involved in an interaction between the plant and its pathogens, also presenting their molecular partners when available. View Full-Text
Keywords: Arabidopsis; pathogen; protease; effector; immunity; cell death; Pseudomonas syringae Arabidopsis; pathogen; protease; effector; immunity; cell death; Pseudomonas syringae

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Pogány, M.; Dankó, T.; Kámán-Tóth, E.; Schwarczinger, I.; Bozsó, Z. Regulatory Proteolysis in Arabidopsis-Pathogen Interactions. Int. J. Mol. Sci. 2015, 16, 23177-23194.

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