Cited by 502Plant Parasitism and ResistancePlant biochemistry and biosynthesisPlant Molecular Biology Research

Strigolactones affect lateral root formation and root-hair elongation in Arabidopsis

Kapulnik, Yoram, Delaux, Pierre-Marc, Resnick, Natalie, Mayzlish-Gati, Einav, Wininger, Smadar, Bhattacharya, Chaitali, Séjalon-Delmas, Nathalie, Combier, Jean-Philippe +6 more·2011·Planta

Abstract

Strigolactones (SLs) have been proposed as a new group of plant hormones, inhibiting shoot branching, and as signaling molecules for plant interactions. Here, we present evidence for effects of SLs on root development. The analysis of mutants flawed in SLs synthesis or signaling suggested that the absence of SLs enhances lateral root formation. In accordance, roots grown in the presence of GR24, a synthetic bioactive SL, showed reduced number of lateral roots in WT and in max3-11 and max4-1 mutants, deficient in SL synthesis. The GR24-induced reduction in lateral roots was not apparent in the SL signaling mutant max2-1. Moreover, GR24 led to increased root-hair length in WT and in max3-11 and max4-1 mutants, but not in max2-1. SLs effect on lateral root formation and root-hair elongation may suggest a role for SLs in the regulation of root development; perhaps, as a response to growth conditions.

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Crossref · 10.1007/s00425-010-1310-y

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  • Novel roles for SL in plant architecture other than shoot branching have been suggested for dwarfism and root architecture.

    “Novel roles for SL in plant architecture, other than shoot branching, have been recently suggested for dwarfism (Lin et al., 2009) and root architecture (Koltai et al., 2009;Kapulnik et al., 2011;Ruyter-Spira et al., 2011).”

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Authors
Kapulnik, Y., Delaux, P.-M., Resnick, N., Mayzlish-Gati, E., Wininger, S., Bhattacharya, C., Séjalon-Delmas, N., Combier, J.-P., Bécard, G., Belausov, E., Beeckman, T., Dor, E., Hershenhorn, J., & Koltai, H.
Affiliations
  • Agricultural Research Organization (IL)
  • Université Toulouse III - Paul Sabatier (FR)
  • Ghent University (BE)
Corresponding author
Koltai, Hinanit
Venue
Planta
Published
2010-11-16
Volume
233
Issue
1
Pages
209-216
ISSN
  • 0032-0935 (ISSN-L)
  • 1432-2048
OpenAlex
W2072398514
Cited by
502
References
52
Citations by year
2026: 12 · 2025: 28 · 2024: 29 · 2023: 24 · 2022: 41 · 2021: 43 · 2020: 31 · 2019: 28 · 2018: 31 · 2017: 32 · 2016: 31 · 2015: 32 · 2014: 42 · 2013: 42 · 2012: 35
FWCI
37.69
Type
journal article
Language
en
Open access
closed
Locations
  • Planta (publishedVersion)
  • PubMed (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Parasitism and Resistance
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
Keywords
strigolactones, lateral root formation, root hair elongation, root development, GR24, MAX2, strigolactone biosynthesis, strigolactone signaling, Arabidopsis thaliana, plant hormones
MeSH terms
Analysis of Variance, Lactones, Mutation, Arabidopsis, Plant Roots, Organogenesis

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