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  A light-dependent molecular link between competition cues and defence responses in plants

Fernández-Milmanda, G. L., Crocco, C. D., Reichelt, M., Mazza, C. A., Köllner, T. G., Zhang, T., et al. (2020). A light-dependent molecular link between competition cues and defence responses in plants. Nature Plants, 6(3), 223-230. doi:10.1038/s41477-020-0604-8.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-4D16-D Version Permalink: https://hdl.handle.net/21.11116/0000-0009-30AC-F
Genre: Journal Article

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GER493.pdf (Publisher version), 4MB
 
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GER493s1.zip (Supplementary material), 2MB
 
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http://dx.doi.org/10.1101/637504 (Preprint)
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 Creators:
Fernández-Milmanda, G. L., Author
Crocco, C. D., Author
Reichelt, Michael1, Author           
Mazza, C. A., Author
Köllner, Tobias G.1, Author           
Zhang, T., Author
Cargnel, M. D., Author
Lichy, M. Z., Author
Koo, A. J., Author
Austin, A. T., Author
Gershenzon, Jonathan1, Author           
Ballaré, C. L., Author
Affiliations:
1Department of Biochemistry, Prof. J. Gershenzon, MPI for Chemical Ecology, Max Planck Society, ou_421893              

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 Abstract: One of the principal internal signals controlling plant growth and defense is jasmonate (JA), a potent growth inhibitor that is simultaneously a central regulator of plant immunity to herbivores and pathogens. When shade-intolerant plants perceive the proximity of competitors using the photoreceptor phytochrome B (phyB), they accelerate growth and down-regulate JA responses. However, the mechanisms by which photoreceptors relay light cues to the JA signaling pathway are not understood. Here we identify a sulfotransferase (ST2a) that is strongly up-regulated by plant proximity perceived by phyB via the phyB-Phytochrome Interacting Factor (PIF) signaling module. By catalyzing the formation of a sulfated JA derivative, ST2a acts to degrade bioactive forms of JA and represents a direct molecular link between photoreceptors and hormone signaling in plants. The enzyme provides a molecular mechanism for prioritizing shade avoidance over defense under close plant competition.

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 Dates: 2020-01-222020-03-092020-03
 Publication Status: Issued
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 Identifiers: Other: GER493
DOI: 10.1038/s41477-020-0604-8
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Title: Nature Plants
Source Genre: Journal
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Publ. Info: Nature Publishing Group
Pages: - Volume / Issue: 6 (3) Sequence Number: - Start / End Page: 223 - 230 Identifier: ISSN: 2055-0278
CoNE: https://pure.mpg.de/cone/journals/resource/2055-0278