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  Alternaria brassicae induces systemic jasmonate responses in Arabidopsis which travel to neighboring plants via a Piriformsopora indica hyphal network and activate abscisic acid responses

Vahabi, K., Reichelt, M., Scholz, S., Furch, A. C., Matsuo, M., Michal Johnson, J., et al. (2018). Alternaria brassicae induces systemic jasmonate responses in Arabidopsis which travel to neighboring plants via a Piriformsopora indica hyphal network and activate abscisic acid responses. Frontiers in Plant Science, 9: 626. doi:10.3389/fpls.2018.00626.

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http://dx.doi.org/10.3389/fpls.2018.00626 (Publisher version)
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 Creators:
Vahabi, Khabat, Author
Reichelt, Michael1, Author              
Scholz, Sandra2, Author              
Furch, Alexandra C., Author
Matsuo, Mitsuhiro, Author
Michal Johnson, Joy2, Author              
Sherameti, Irena, Author
Gershenzon, Jonathan1, Author              
Oelmüller, Ralf, Author
Affiliations:
1Department of Biochemistry, Prof. J. Gershenzon, MPI for Chemical Ecology, Max Planck Society, ou_421893              
2IMPRS on Ecological Interactions, MPI for Chemical Ecology, Max Planck Society, Jena, DE, ou_421900              

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 Abstract: Stress information received by a particular local plant tissue is transferred to other tissues and neighboring plants, but how the information travels is not well understood. Application of Alternaria brassicae spores to Arabidopsis leaves or roots stimulates local accumulation of jasmonic acid (JA), the expression of JA-responsive genes, as well as of NITRATE TRANS-PORTER (NRT)2.5 and REDOX RESPONSIVE TRANSCRIPTION FACTOR1 (RRTF1). In-fection information is systemically spread over the entire seedling and propagates radially from infected to non-infected leaves, axially from leaves to roots, and vice versa. The local and systemic NRT2.5 responses are reduced in the jar 1 mutant, and the RRTF1 response in the rbohD mutant. Information about A. brassicae infection travels slowly to uninfected neighboring plants via a Piriformospora indica hyphal network, where NRT2.5 and RRTF1 are upregulated. The systemic A. brassicae-induced JA response in infected plants is converted to an abscisic acid (ABA) response in the neighboring plant where ABA and ABA-responsive genes are induced. We propose that the local threat information induced by A. brassicae infec-tion is spread over the entire plant and transferred to neighboring plants via a P. indica hyphal network. The JA-specific response is converted to a general ABA-mediated stress response in the neighboring plant.

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 Dates: 2018-04-202018-05-08
 Publication Status: Published online
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 Identifiers: Other: GER510
DOI: 10.3389/fpls.2018.00626
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Title: Frontiers in Plant Science
  Abbreviation : Front. Plant Sci.
Source Genre: Journal
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Publ. Info: Lausanne : Frontiers Media
Pages: - Volume / Issue: 9 Sequence Number: 626 Start / End Page: - Identifier: ISSN: 1664-462X
CoNE: https://pure.mpg.de/cone/journals/resource/1664462X