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The Arabidopsis Protein Phosphatase PP2C38 Negatively Regulates the Central Immune Kinase BIK1
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نویسنده
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couto d. ,niebergall r. ,liang x. ,bücherl c.a. ,sklenar j. ,macho a.p. ,ntoukakis v. ,derbyshire p. ,altenbach d. ,maclean d. ,robatzek s. ,uhrig j. ,menke f. ,zhou j.-m. ,zipfel c.
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منبع
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plos pathogens - 2016 - دوره : 12 - شماره : 8
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چکیده
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Plants recognize pathogen-associated molecular patterns (pamps) via cell surface-localized pattern recognition receptors (prrs),leading to prr-triggered immunity (pti). the arabidopsis cytoplasmic kinase bik1 is a downstream substrate of several prr complexes. how plant pti is negatively regulated is not fully understood. here,we identify the protein phosphatase pp2c38 as a negative regulator of bik1 activity and bik1-mediated immunity. pp2c38 dynamically associates with bik1,as well as with the prrs fls2 and efr,but not with the co-receptor bak1. pp2c38 regulates pamp-induced bik1 phosphorylation and impairs the phosphorylation of the nadph oxidase rbohd by bik1,leading to reduced oxidative burst and stomatal immunity. upon pamp perception,pp2c38 is phosphorylated on serine 77 and dissociates from the fls2/efr-bik1 complexes,enabling full bik1 activation. together with our recent work on the control of bik1 turnover,this study reveals another important regulatory mechanism of this central immune component. © 2016 couto et al.
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آدرس
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the sainsbury laboratory,norwich research park,norwich, United Kingdom, the sainsbury laboratory,norwich research park,norwich,united kingdom,faculty of biology,university of münster,münster, Germany, institute of genetics and developmental biology,chinese academy of sciences,beijing, China, the sainsbury laboratory,norwich research park,norwich, United Kingdom, the sainsbury laboratory,norwich research park,norwich, United Kingdom, the sainsbury laboratory,norwich research park,norwich,united kingdom,shanghai center for plant stress biology,chinese academy of sciences,shanghai, China, the sainsbury laboratory,norwich research park,norwich,united kingdom,school of life sciences,university of warwick,coventry, United Kingdom, the sainsbury laboratory,norwich research park,norwich, United Kingdom, max-planck-institute for plant breeding research,cologne,germany,bioreba ag,reinach, Switzerland, the sainsbury laboratory,norwich research park,norwich, United Kingdom, max-planck-institute for plant breeding research,cologne,germany,the sainsbury laboratory,norwich research park,norwich, United Kingdom, botanical institute iii,university of cologne,cologne,germany,schwann-schleiden-forschungszentrum für molekulare zellbiologie,georg-august-universität,göttingen, Germany, the sainsbury laboratory,norwich research park,norwich, United Kingdom, institute of genetics and developmental biology,chinese academy of sciences,beijing, China, the sainsbury laboratory,norwich research park,norwich, United Kingdom
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Authors
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