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Slow release of a synthetic auxin induces formation of adventitious roots in recalcitrant woody plants
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(2024) Slow release of a synthetic auxin induces formation of adventitious roots in recalcitrant woody plants. Nature Biotechnology . doi:10.1038/s41587-023-02065-3 ISSN 1087-0156. (In Press)
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WRAP-Alleviating-barrier-adventitious-roots- synthetic-auxin-24.pdf - Accepted Version Embargoed item. Restricted access to Repository staff only until 24 July 2024. Contact author directly, specifying your specific needs. - Requires a PDF viewer. Download (9Mb) |
Official URL: http://doi.org/10.1038/s41587-023-02065-3
Abstract
Clonal propagation of plants by induction of adventitious roots (ARs) from stem cuttings is a requisite step in breeding programs. A major barrier exists for propagating valuable plants that naturally have low capacity to form ARs. Due to the central role of auxin in organogenesis, indole-3-butyric acid is often used as part of commercial rooting mixtures, yet many recalcitrant plants do not form ARs in response to this treatment. Here we describe the synthesis and screening of a focused library of synthetic auxin conjugates in Eucalyptus grandis cuttings and identify 4-chlorophenoxyacetic acid–L-tryptophan-OMe as a competent enhancer of adventitious rooting in a number of recalcitrant woody plants, including apple and argan. Comprehensive metabolic and functional analyses reveal that this activity is engendered by prolonged auxin signaling due to initial fast uptake and slow release and clearance of the free auxin 4-chlorophenoxyacetic acid. This work highlights the utility of a slow-release strategy for bioactive compounds for more effective plant growth regulation.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > QK Botany S Agriculture > SB Plant culture |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||
Library of Congress Subject Headings (LCSH): | Clones (Plants) -- Selection , Auxin, Auxin -- Physiological effect , Plants -- Effect of auxin on, Plant cuttings -- Rooting | ||||||
Journal or Publication Title: | Nature Biotechnology | ||||||
Publisher: | Nature Publishing Group | ||||||
ISSN: | 1087-0156 | ||||||
Official Date: | 24 January 2024 | ||||||
Dates: |
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DOI: | 10.1038/s41587-023-02065-3 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | In Press | ||||||
Re-use Statement: | “This version of the article has been accepted for publication, after peer review (when applicable) but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://doi.org/10.1038/s41587-023-02065-3. Use of this Accepted Version is subject to the publisher’s Accepted Manuscript terms of use https://www.springernature.com/gp/open-research/policies/acceptedmanuscript-terms”." | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 6 February 2024 |
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