Skip to main content
bioRxiv
  • Home
  • About
  • Submit
  • ALERTS / RSS
Advanced Search
New Results

Jasmonate biosynthesis arising from altered cell walls is prompted by turgor-driven mechanical compression and guides root hydrotropism

Stefan Mielke, Marlene Zimmer, Mukesh Kumar Meena, René Dreos, Hagen Stellmach, Bettina Hause, View ORCID ProfileCătălin Voiniciuc, Debora Gasperini
doi: https://doi.org/10.1101/2020.09.29.319012
Stefan Mielke
1Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Marlene Zimmer
1Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Mukesh Kumar Meena
1Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
René Dreos
2Center for Integrative Genomics, University of Lausanne, 1015 Lausanne, Switzerland
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Hagen Stellmach
3Department of Cell and Metabolic Biology, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Bettina Hause
3Department of Cell and Metabolic Biology, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Cătălin Voiniciuc
4Independent Junior Research Group – Designer Glycans, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Cătălin Voiniciuc
Debora Gasperini
1Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: debora.gasperini@ipb-halle.de
  • Abstract
  • Full Text
  • Info/History
  • Metrics
  • Preview PDF
Loading

ABSTRACT

Despite the vital roles of jasmonoyl-isoleucine (JA-Ile) in governing plant growth and environmental acclimation, it remains unclear what intracellular processes lead to its induction. Here, we provide compelling genetic evidence that mechanical and osmotic regulation of turgor pressure represents a key factor in eliciting JA-Ile biosynthesis. After identifying cell wall mutant alleles in KORRIGAN1 (KOR1) with elevated JA-Ile in seedling roots, we found that ectopic JA-Ile resulted from cell non-autonomous signals deriving from enlarged cortex cells compressing inner tissues and stimulating JA-Ile production. Restoring cortex cell size by cell-type-specific KOR1 complementation, by isolating a genetic kor1 suppressor, and by lowering turgor pressure with hyperosmotic treatments, abolished JA-Ile signalling. Strikingly, heightened JA-Ile levels guided kor1 roots towards greater water availability, uncovering a previously unrecognized JA-Ile function in root hydrotropism. Collectively, these findings enhance our understanding of JA-Ile biosynthesis initiation, and reveal a novel role of JA-Ile in orchestrating environmental resilience.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
Back to top
PreviousNext
Posted October 01, 2020.
Download PDF
Email

Thank you for your interest in spreading the word about bioRxiv.

NOTE: Your email address is requested solely to identify you as the sender of this article.

Enter multiple addresses on separate lines or separate them with commas.
Jasmonate biosynthesis arising from altered cell walls is prompted by turgor-driven mechanical compression and guides root hydrotropism
(Your Name) has forwarded a page to you from bioRxiv
(Your Name) thought you would like to see this page from the bioRxiv website.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Share
Jasmonate biosynthesis arising from altered cell walls is prompted by turgor-driven mechanical compression and guides root hydrotropism
Stefan Mielke, Marlene Zimmer, Mukesh Kumar Meena, René Dreos, Hagen Stellmach, Bettina Hause, Cătălin Voiniciuc, Debora Gasperini
bioRxiv 2020.09.29.319012; doi: https://doi.org/10.1101/2020.09.29.319012
Reddit logo Twitter logo Facebook logo LinkedIn logo Mendeley logo
Citation Tools
Jasmonate biosynthesis arising from altered cell walls is prompted by turgor-driven mechanical compression and guides root hydrotropism
Stefan Mielke, Marlene Zimmer, Mukesh Kumar Meena, René Dreos, Hagen Stellmach, Bettina Hause, Cătălin Voiniciuc, Debora Gasperini
bioRxiv 2020.09.29.319012; doi: https://doi.org/10.1101/2020.09.29.319012

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Subject Area

  • Plant Biology
Subject Areas
All Articles
  • Animal Behavior and Cognition (4663)
  • Biochemistry (10324)
  • Bioengineering (7649)
  • Bioinformatics (26266)
  • Biophysics (13487)
  • Cancer Biology (10655)
  • Cell Biology (15375)
  • Clinical Trials (138)
  • Developmental Biology (8474)
  • Ecology (12788)
  • Epidemiology (2067)
  • Evolutionary Biology (16808)
  • Genetics (11375)
  • Genomics (15441)
  • Immunology (10589)
  • Microbiology (25108)
  • Molecular Biology (10182)
  • Neuroscience (54278)
  • Paleontology (399)
  • Pathology (1663)
  • Pharmacology and Toxicology (2884)
  • Physiology (4329)
  • Plant Biology (9217)
  • Scientific Communication and Education (1584)
  • Synthetic Biology (2548)
  • Systems Biology (6765)
  • Zoology (1459)