Systemic resistance in Arabidopsis conferred by the mycorrhizal fungus Piriformospora indica requires jasmonic acid signaling and the cytoplasmic function of NPR1

We analyzed the requirement of specific defense pathways for powdery mildew (Golovinomyces orontii) resistance induced by the basidiomycete Piriformospora indica in Arabidopsis. Piriformospora indica root colonization reduced G. orontii conidia in wild-type (Col-0), npr1-3 (nonexpressor of PR genes...

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Bibliographic Details
Published in:Plant and cell physiology 2008-11, Vol.49 (11), p.1747-1751
Main Authors: Stein, E.(Justus-Liebig-Univ., Giessen (Germany)), Molitor, A, Kogel, K.H, Waller, F
Format: Article
Language:English
Subjects:
ACIDE JASMONIQUE
ACIDO JASMONICO
Arabidopsis
Arabidopsis - genetics
Arabidopsis - immunology
Arabidopsis - metabolism
Arabidopsis - microbiology
Arabidopsis Proteins - genetics
Arabidopsis Proteins - metabolism
ARABIDOPSIS THALIANA
Ascomycota - pathogenicity
Basidiomycetes
Basidiomycota - physiology
Cyclopentanes - metabolism
Cytoplasm - metabolism
CYTOPLASMIC INHERITANCE
DNA, Plant - genetics
ENFERMEDADES SISTEMICAS
Gene Expression Regulation, Plant
Genotype
Golovinomyces
HEREDITE CYTOPLASMIQUE
HERENCIA CITOPLASMICA
Immunity, Innate
JASMONIC ACID
MALADIE SYSTEMIQUE
MILDEWS
MILDIOU OIDIUM
MILDIU
MUTANT
MUTANTES
MUTANTS
Mutation
MYCORHIZE
MYCORRHIZAE
NPR1
Oxylipins - metabolism
Piriformospora indica
Plant Growth Regulators - metabolism
Plant Roots - genetics
Plant Roots - metabolism
Powdery mildew
PROTEINAS DE RESERVA
PROTEINE DE RESERVE
Salicylic Acid - metabolism
Signal Transduction
STORAGE PROTEINS
Systemic disease resistance
SYSTEMIC DISEASES
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Summary:We analyzed the requirement of specific defense pathways for powdery mildew (Golovinomyces orontii) resistance induced by the basidiomycete Piriformospora indica in Arabidopsis. Piriformospora indica root colonization reduced G. orontii conidia in wild-type (Col-0), npr1-3 (nonexpressor of PR genes 1-3) and NahG plants, but not in the npr1-1 null mutant. Therefore, cytoplasmic but not nuclear localization of NPR1 is required for P. indica-induced resistance. Two jasmonate signaling mutants were non-responsive to P. indica, and jasmonic acid-responsive vegetative storage protein expression was primed and thus elevated in response to powdery mildew, suggesting that P. indica confers resistance reminiscent of induced systemic resistance (ISR).
ISSN:0032-0781
1471-9053
DOI:10.1093/pcp/pcn147