Protein Phosphatase 2A in the Regulatory Network Underlying Biotic Stress Resistance in Plants

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http://hdl.handle.net/10138/208465

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Durian , G , Rahikainen , M , Alegre , S , Brosche , M & Kangasjarvi , S 2016 , ' Protein Phosphatase 2A in the Regulatory Network Underlying Biotic Stress Resistance in Plants ' , Frontiers in plant science , vol. 7 , 812 . https://doi.org/10.3389/fpls.2016.00812

Title: Protein Phosphatase 2A in the Regulatory Network Underlying Biotic Stress Resistance in Plants
Author: Durian, Guido; Rahikainen, Moona; Alegre, Sara; Brosche, Mikael; Kangasjarvi, Saijaliisa
Contributor: University of Helsinki, University of Turku
University of Helsinki, Biosciences
University of Helsinki, University of Turku
Date: 2016-06-10
Language: eng
Number of pages: 17
Belongs to series: Frontiers in plant science
ISSN: 1664-462X
URI: http://hdl.handle.net/10138/208465
Abstract: Biotic stress factors pose a major threat to plant health and can significantly deteriorate plant productivity by impairing the physiological functions of the plant. To combat the wide range of pathogens and insect herbivores, plants deploy converging signaling pathways, where counteracting activities of protein kinases and phosphatases form a basic mechanism for determining appropriate defensive measures. Recent studies have identified Protein Phosphatase 2A (PP2A) as a crucial component that controls pathogenesis responses in various plant species. Genetic, proteomic and metabolomic approaches have underscored the versatile nature of PP2A, which contributes to the regulation of receptor signaling, organellar signaling, gene expression, metabolic pathways, and cell death, all of which essentially impact plant immunity. Associated with this, various PP2A subunits mediate post-translational regulation of metabolic enzymes and signaling components. Here we provide an overview of protein kinase/phosphatase functions in plant immunity signaling, and position the multifaceted functions of PP2A in the tightly inter-connected regulatory network that controls the perception, signaling and responding to biotic stress agents in plants.
Subject: protein phosphatase 2a
plant immunity
signaling
metabolism
protein phosphorylation
INTRACELLULAR OXIDATIVE STRESS
PATTERN-RECOGNITION RECEPTORS
SYSTEMIC ACQUIRED-RESISTANCE
INNATE IMMUNE-RESPONSES
ARABIDOPSIS PPP FAMILY
NADPH OXIDASE RBOHD
PSEUDOMONAS-SYRINGAE
DEFENSE RESPONSES
GENE-EXPRESSION
CELL-DEATH
1183 Plant biology, microbiology, virology
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