Journal of Experimental Botany| 23 August 2024| doi.org/10.1093/jxb/erae358
Kamlesh Kumar Soni, Kishan Gurjar, Aastha Ranjan, Shashank Sinha, Moumita Srivastava, Vivek Verma
The co-evolution of plants and pathogens has enabled them to ‘outsmart’ each other by promoting their own defense responses and suppressing that of the other. While plants are reliant on their sophisticated immune signalling pathways, pathogens make use of effector proteins to achieve the objective. This entails rapid regulation of the underlying molecular mechanisms for prompt induction of the associated signalling events in both plants as well as pathogens. The last decade has witnessed the emergence of post-translational modification (PTM) of proteins as key players in modulating cellular responses. Their ability to expand the functional diversity of the proteome and induce rapid changes at the appropriate time enables them to play crucial roles in the regulation of plant-pathogen interactions. Therefore, this review will delve into the intricate interplay of five major PTMs in plant defense and pathogen countermeasures. The review discusses how plants employ PTMs to fortify their immune networks, and how pathogen effectors utilize/target host modification systems to gain entry into the plant and cause disease. The review also underscores the need for identification of newer PTMs and proposes to use PTM machineries as potential targets for genome editing approaches.
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