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Strigolactone inhibition of shoot branching

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  • Victoria Gomez-Roldan

    (Université de Toulouse; UPS; CNRS; Surface Cellulaire et Signalisation chez les Végétaux, 24 chemin de Borde Rouge, F-31326 Castanet-Tolosan, France
    UPS)

  • Soraya Fermas

    (Station de Génétique et d’Amélioration des Plantes, Institut J. P. Bourgin, UR254 INRA, F-78000 Versailles, France)

  • Philip B. Brewer

    (ARC Centre of Excellence for Integrative Legume Research, The University of Queensland)

  • Virginie Puech-Pagès

    (Université de Toulouse; UPS; CNRS; Surface Cellulaire et Signalisation chez les Végétaux, 24 chemin de Borde Rouge, F-31326 Castanet-Tolosan, France
    UPS)

  • Elizabeth A. Dun

    (ARC Centre of Excellence for Integrative Legume Research, The University of Queensland)

  • Jean-Paul Pillot

    (Station de Génétique et d’Amélioration des Plantes, Institut J. P. Bourgin, UR254 INRA, F-78000 Versailles, France)

  • Fabien Letisse

    (CNRS, UMR5504, INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, INSA de Toulouse, F-31400 Toulouse, France)

  • Radoslava Matusova

    (Plant Research International, PO Box 16, 6700 AA Wageningen, the Netherlands)

  • Saida Danoun

    (Université de Toulouse; UPS; CNRS; Surface Cellulaire et Signalisation chez les Végétaux, 24 chemin de Borde Rouge, F-31326 Castanet-Tolosan, France
    UPS)

  • Jean-Charles Portais

    (CNRS, UMR5504, INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, INSA de Toulouse, F-31400 Toulouse, France)

  • Harro Bouwmeester

    (Plant Research International, PO Box 16, 6700 AA Wageningen, the Netherlands
    Laboratory of Plant Physiology, Wageningen University, Arboretumlaan 4, 6703 BD Wageningen, the Netherlands)

  • Guillaume Bécard

    (Université de Toulouse; UPS; CNRS; Surface Cellulaire et Signalisation chez les Végétaux, 24 chemin de Borde Rouge, F-31326 Castanet-Tolosan, France
    UPS)

  • Christine A. Beveridge

    (ARC Centre of Excellence for Integrative Legume Research, The University of Queensland
    School of Integrative Biology, The University of Queensland)

  • Catherine Rameau

    (Station de Génétique et d’Amélioration des Plantes, Institut J. P. Bourgin, UR254 INRA, F-78000 Versailles, France)

  • Soizic F. Rochange

    (Université de Toulouse; UPS; CNRS; Surface Cellulaire et Signalisation chez les Végétaux, 24 chemin de Borde Rouge, F-31326 Castanet-Tolosan, France
    UPS)

Abstract

A carotenoid-derived hormonal signal that inhibits shoot branching in plants has long escaped identification. Strigolactones are compounds thought to be derived from carotenoids and are known to trigger the germination of parasitic plant seeds and stimulate symbiotic fungi. Here we present evidence that carotenoid cleavage dioxygenase 8 shoot branching mutants of pea are strigolactone deficient and that strigolactone application restores the wild-type branching phenotype to ccd8 mutants. Moreover, we show that other branching mutants previously characterized as lacking a response to the branching inhibition signal also lack strigolactone response, and are not deficient in strigolactones. These responses are conserved in Arabidopsis. In agreement with the expected properties of the hormonal signal, exogenous strigolactone can be transported in shoots and act at low concentrations. We suggest that endogenous strigolactones or related compounds inhibit shoot branching in plants. Furthermore, ccd8 mutants demonstrate the diverse effects of strigolactones in shoot branching, mycorrhizal symbiosis and parasitic weed interaction.

Suggested Citation

  • Victoria Gomez-Roldan & Soraya Fermas & Philip B. Brewer & Virginie Puech-Pagès & Elizabeth A. Dun & Jean-Paul Pillot & Fabien Letisse & Radoslava Matusova & Saida Danoun & Jean-Charles Portais & Harr, 2008. "Strigolactone inhibition of shoot branching," Nature, Nature, vol. 455(7210), pages 189-194, September.
    • Handle: RePEc:nat:nature:v:455:y:2008:i:7210:d:10.1038_nature07271
    DOI: 10.1038/nature07271
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    Citations

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    Cited by:

    1. Wenlong Yang & Ameer Ahmed Mirbahar & Muhammad Shoaib & Xueyuan Lou & Linhe Sun & Jiazhu Sun & Kehui Zhan & Aimin Zhang, 2022. "The Carotenoid Cleavage Dioxygenase Gene CCD7-B , at Large, Is Associated with Tillering in Common Wheat," Agriculture, MDPI, vol. 12(2), pages 1-14, February.
    2. Malathy Palayam & Linyi Yan & Ugrappa Nagalakshmi & Amelia K. Gilio & David Cornu & François-Didier Boyer & Savithramma P. Dinesh-Kumar & Nitzan Shabek, 2024. "Structural insights into strigolactone catabolism by carboxylesterases reveal a conserved conformational regulation," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    3. Yiren Qing & Yaoming Li & Lizhang Xu & Zheng Ma, 2021. "Screen Oilseed Rape ( Brassica napus ) Suitable for Low-Loss Mechanized Harvesting," Agriculture, MDPI, vol. 11(6), pages 1-13, May.
    4. Adam Conn & Arjun Chandrasekhar & Martin van Rongen & Ottoline Leyser & Joanne Chory & Saket Navlakha, 2019. "Network trade-offs and homeostasis in Arabidopsis shoot architectures," PLOS Computational Biology, Public Library of Science, vol. 15(9), pages 1-19, September.
    5. Jinying Cui & Noriko Nishide & Kiyoshi Mashiguchi & Kana Kuroha & Masayuki Miya & Kazuhiko Sugimoto & Jun-Ichi Itoh & Shinjiro Yamaguchi & Takeshi Izawa, 2023. "Fertilization controls tiller numbers via transcriptional regulation of a MAX1-like gene in rice cultivation," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    6. Kyoichi Kodama & Mélanie K. Rich & Akiyoshi Yoda & Shota Shimazaki & Xiaonan Xie & Kohki Akiyama & Yohei Mizuno & Aino Komatsu & Yi Luo & Hidemasa Suzuki & Hiromu Kameoka & Cyril Libourel & Jean Kelle, 2022. "An ancestral function of strigolactones as symbiotic rhizosphere signals," Nature Communications, Nature, vol. 13(1), pages 1-15, December.
    7. Abid Ali & Guy Kateta Malangisha & Haiyang Yang & Chen Li & Chi Wang & Yubin Yang & Ahmed Mahmoud & Jehanzeb Khan & Jinghua Yang & Zhongyuan Hu & Mingfang Zhang, 2021. "Strigolactone Alleviates Herbicide Toxicity via Maintaining Antioxidant Homeostasis in Watermelon ( Citrullus lanatus )," Agriculture, MDPI, vol. 11(5), pages 1-19, May.

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