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  Improved sulfur nutrition provides the basis for enhanced production of sulfur-containing defense compounds in Arabidopsis thaliana upon inoculation with Alternaria brassicicola

Kruse, C., Haas, F. H., Jost, R., Reiser, B., Reichelt, M., Wirtz, M., et al. (2012). Improved sulfur nutrition provides the basis for enhanced production of sulfur-containing defense compounds in Arabidopsis thaliana upon inoculation with Alternaria brassicicola. Journal of Plant Physiology, 169, 740-743. doi:10.1016/j.jplph.2011.12.017.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-8246-B Version Permalink: https://hdl.handle.net/21.11116/0000-0009-339A-0
Genre: Journal Article

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GER325.pdf (Publisher version), 382KB
 
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GER325s1.zip (Supplementary material), 148KB
 
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 Creators:
Kruse, Cordula, Author
Haas, Florian H., Author
Jost, Ricarda, Author
Reiser, Bianca, Author
Reichelt, Michael1, Author           
Wirtz, Markus, Author
Gershenzon, Jonathan1, Author           
Schnug, Ewald, Author
Hell, Rüdiger, Author
Affiliations:
1Department of Biochemistry, Prof. J. Gershenzon, MPI for Chemical Ecology, Max Planck Society, ou_421893              

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 Abstract: The antifungal activities of many sulfur-containing defense compounds suggest a connection between pathogen infection, primary sulfur metabolism and sulfate nutritional status of plants. This relationship was investigated using Arabidopsis thaliana plants that were cultivated under different sulfur regimes and challenged by Alternaria brassicicola. Plants grown with 500 μM sulfate were significantly less infected compared to plants grown on 50 μM sulfate. Upon infection, the formation of the sulfur-containing defense compound camalexin and the gene expression of the sulfur-rich defense peptide defensin were clearly enhanced in plants grown with an optimal compared to a sufficient sulfate supply in the growth medium. Elevated levels of sulfite and O-acetylserine and cysteine biosynthetic enzymes after infection indicated a stimulation of sulfur metabolism under the higher sulfate supply. The results suggest that, in addition to pathogen-triggered activation of sulfur metabolism and sulfur-containing defense compound formation, the sulfate nutritional status is sensed to contribute to plant defense.

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 Dates: 20112012
 Publication Status: Issued
 Pages: -
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 Rev. Type: -
 Identifiers: Other: GER325
DOI: 10.1016/j.jplph.2011.12.017
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Title: Journal of Plant Physiology
  Other : J. Plant Physiol.
Source Genre: Journal
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Publ. Info: Stuttgart : Urban & Fischer
Pages: - Volume / Issue: 169 Sequence Number: - Start / End Page: 740 - 743 Identifier: ISSN: 0176-1617
CoNE: https://pure.mpg.de/cone/journals/resource/954928517792