NPR1 is instrumental in priming for the enhanced flg22-induced MPK3 and MPK6 activation

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Title
NPR1 is instrumental in priming for the enhanced flg22-induced MPK3 and MPK6 activation
Author(s)
So Young Yi; Sung Ran MinSuk Yoon Kwon
Bibliographic Citation
Plant Pathology Journal, vol. 31, no. 2, pp. 192-194
Publication Year
2015
Abstract
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.
Keyword
CIM6Flg22 responseMitogen-activated protein kinases (MAPKs)MPK3MPK6NPR1PrimingSalicylic acid signalingSID2
ISSN
I000-0113
Publisher
South Korea
DOI
http://dx.doi.org/10.5423/PPJ.NT.10.2014.0112
Type
Article
Appears in Collections:
Division of Biomaterials Research > Plant Systems Engineering Research > 1. Journal Articles
Division of Biomaterials Research > 1. Journal Articles
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