NPR1 is Instrumental in Priming for the Enhanced flg22-induced MPK3 and MPK6 Activation

Pathogen-associated molecular patterns (PAMPs) activate mitogen-activated protein kinases (MAPKs), essential components of plant defense signaling. Salicylic acid (SA) is also central to plant resistance responses, but its specific role in regulation of MAPK activation is not completely defined. We...

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Main Authors: So Young Yi, Sung Ran Min, Suk-Yoon Kwon
Format: Article
Language:English
Published: Hanrimwon Publishing Company 2015-06-01
Series:The Plant Pathology Journal
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/4454001
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author So Young Yi
Sung Ran Min
Suk-Yoon Kwon
author_facet So Young Yi
Sung Ran Min
Suk-Yoon Kwon
author_sort So Young Yi
collection DOAJ
description Pathogen-associated molecular patterns (PAMPs) activate mitogen-activated protein kinases (MAPKs), essential components of plant defense signaling. Salicylic acid (SA) is also central to plant resistance responses, but its specific role in regulation of MAPK activation is not completely defined. We have investigated the role of SA in PAMP-triggered MAPKs pathways in Arabidopsis SA-related mutants, specifically in the flg22-triggered activation of MPK3 and MPK6. cim6, sid2, and npr1 mutants exhibited wild-type-like flg22-triggered MAPKs activation, suggesting that impairment of SA signaling has no effect on the flg22-triggered MAPKs activation. Pretreatment with low concentrations of SA enhanced flg22-induced MPK3 and MPK6 activation in all seedlings except npr1, indicating that NPR1 is involved in SA-mediated priming that enhanced flg22-induced MAPKs activation.
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spelling doaj.art-6ec5818ad87646d996bfaae981e8fcce2022-12-21T19:02:25ZengHanrimwon Publishing CompanyThe Plant Pathology Journal1598-22542015-06-0131219219410.5423/PPJ.NT.10.2014.0112PPJ.NT.10.2014.0112NPR1 is Instrumental in Priming for the Enhanced flg22-induced MPK3 and MPK6 ActivationSo Young Yi0Sung Ran Min1Suk-Yoon Kwon2Plant Systems Engineering Research Center, KRIBB, Daejeon 305-806, KoreaPlant Systems Engineering Research Center, KRIBB, Daejeon 305-806, KoreaPlant Systems Engineering Research Center, KRIBB, Daejeon 305-806, KoreaPathogen-associated molecular patterns (PAMPs) activate mitogen-activated protein kinases (MAPKs), essential components of plant defense signaling. Salicylic acid (SA) is also central to plant resistance responses, but its specific role in regulation of MAPK activation is not completely defined. We have investigated the role of SA in PAMP-triggered MAPKs pathways in Arabidopsis SA-related mutants, specifically in the flg22-triggered activation of MPK3 and MPK6. cim6, sid2, and npr1 mutants exhibited wild-type-like flg22-triggered MAPKs activation, suggesting that impairment of SA signaling has no effect on the flg22-triggered MAPKs activation. Pretreatment with low concentrations of SA enhanced flg22-induced MPK3 and MPK6 activation in all seedlings except npr1, indicating that NPR1 is involved in SA-mediated priming that enhanced flg22-induced MAPKs activation.http://www.ncbi.nlm.nih.gov/pmc/articles/4454001CIM6flg22 responsemitogen-activated protein kinases (MAPKs)MPK3MPK6NPR1primingsalicylic acid signalingSID2
spellingShingle So Young Yi
Sung Ran Min
Suk-Yoon Kwon
NPR1 is Instrumental in Priming for the Enhanced flg22-induced MPK3 and MPK6 Activation
The Plant Pathology Journal
CIM6
flg22 response
mitogen-activated protein kinases (MAPKs)
MPK3
MPK6
NPR1
priming
salicylic acid signaling
SID2
title NPR1 is Instrumental in Priming for the Enhanced flg22-induced MPK3 and MPK6 Activation
title_full NPR1 is Instrumental in Priming for the Enhanced flg22-induced MPK3 and MPK6 Activation
title_fullStr NPR1 is Instrumental in Priming for the Enhanced flg22-induced MPK3 and MPK6 Activation
title_full_unstemmed NPR1 is Instrumental in Priming for the Enhanced flg22-induced MPK3 and MPK6 Activation
title_short NPR1 is Instrumental in Priming for the Enhanced flg22-induced MPK3 and MPK6 Activation
title_sort npr1 is instrumental in priming for the enhanced flg22 induced mpk3 and mpk6 activation
topic CIM6
flg22 response
mitogen-activated protein kinases (MAPKs)
MPK3
MPK6
NPR1
priming
salicylic acid signaling
SID2
url http://www.ncbi.nlm.nih.gov/pmc/articles/4454001
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AT sukyoonkwon npr1isinstrumentalinprimingfortheenhancedflg22inducedmpk3andmpk6activation