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Arabidopsis hypocotyl adventitious root formation is suppressed by ABA signaling

(2021) GENES. 12(8).
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Abstract
Roots are composed of different root types and, in the dicotyledonous Arabidopsis, typically consist of a primary root that branches into lateral roots. Adventitious roots emerge from non-root tissue and are formed upon wounding or other types of abiotic stress. Here, we investigated adventitious root (AR) formation in Arabidopsis hypocotyls under conditions of altered abscisic acid (ABA) signaling. Exogenously applied ABA suppressed AR formation at 0.25 mu M or higher doses. AR formation was less sensitive to the synthetic ABA analog pyrabactin (PB). However, PB was a more potent inhibitor at concentrations above 1 mu M, suggesting that it was more selective in triggering a root inhibition response. Analysis of a series of phosphonamide and phosphonate pyrabactin analogs suggested that adventitious root formation and lateral root branching are differentially regulated by ABA signaling. ABA biosynthesis and signaling mutants affirmed a general inhibitory role of ABA and point to PYL1 and PYL2 as candidate ABA receptors that regulate AR inhibition.
Keywords
adventitious roots, abscisic acid, Arabidopsis thaliana, SNRK2 PROTEIN-KINASES, ABSCISIC-ACID BIOSYNTHESIS, SEED DEVELOPMENT, GENE-EXPRESSION, SALT STRESS, RECEPTORS, MUTANTS, ENCODES, GROWTH, LOCUS

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MLA
Zeng, Yinwei, et al. “Arabidopsis Hypocotyl Adventitious Root Formation Is Suppressed by ABA Signaling.” GENES, vol. 12, no. 8, 2021, doi:10.3390/genes12081141.
APA
Zeng, Y., Verstraeten, I., Trinh, H. K., Heugebaert, T., Stevens, C., Garcia-Maquilon, I., … Geelen, D. (2021). Arabidopsis hypocotyl adventitious root formation is suppressed by ABA signaling. GENES, 12(8). https://doi.org/10.3390/genes12081141
Chicago author-date
Zeng, Yinwei, Inge Verstraeten, Hoang Khai Trinh, Thomas Heugebaert, Christian Stevens, Irene Garcia-Maquilon, Pedro L. Rodriguez, Steffen Vanneste, and Danny Geelen. 2021. “Arabidopsis Hypocotyl Adventitious Root Formation Is Suppressed by ABA Signaling.” GENES 12 (8). https://doi.org/10.3390/genes12081141.
Chicago author-date (all authors)
Zeng, Yinwei, Inge Verstraeten, Hoang Khai Trinh, Thomas Heugebaert, Christian Stevens, Irene Garcia-Maquilon, Pedro L. Rodriguez, Steffen Vanneste, and Danny Geelen. 2021. “Arabidopsis Hypocotyl Adventitious Root Formation Is Suppressed by ABA Signaling.” GENES 12 (8). doi:10.3390/genes12081141.
Vancouver
1.
Zeng Y, Verstraeten I, Trinh HK, Heugebaert T, Stevens C, Garcia-Maquilon I, et al. Arabidopsis hypocotyl adventitious root formation is suppressed by ABA signaling. GENES. 2021;12(8).
IEEE
[1]
Y. Zeng et al., “Arabidopsis hypocotyl adventitious root formation is suppressed by ABA signaling,” GENES, vol. 12, no. 8, 2021.
@article{8721958,
  abstract     = {{Roots are composed of different root types and, in the dicotyledonous Arabidopsis, typically consist of a primary root that branches into lateral roots. Adventitious roots emerge from non-root tissue and are formed upon wounding or other types of abiotic stress. Here, we investigated adventitious root (AR) formation in Arabidopsis hypocotyls under conditions of altered abscisic acid (ABA) signaling. Exogenously applied ABA suppressed AR formation at 0.25 mu M or higher doses. AR formation was less sensitive to the synthetic ABA analog pyrabactin (PB). However, PB was a more potent inhibitor at concentrations above 1 mu M, suggesting that it was more selective in triggering a root inhibition response. Analysis of a series of phosphonamide and phosphonate pyrabactin analogs suggested that adventitious root formation and lateral root branching are differentially regulated by ABA signaling. ABA biosynthesis and signaling mutants affirmed a general inhibitory role of ABA and point to PYL1 and PYL2 as candidate ABA receptors that regulate AR inhibition.}},
  articleno    = {{1141}},
  author       = {{Zeng, Yinwei and Verstraeten, Inge and Trinh, Hoang Khai and Heugebaert, Thomas and Stevens, Christian and Garcia-Maquilon, Irene and Rodriguez, Pedro L. and Vanneste, Steffen and Geelen, Danny}},
  issn         = {{2073-4425}},
  journal      = {{GENES}},
  keywords     = {{adventitious roots,abscisic acid,Arabidopsis thaliana,SNRK2 PROTEIN-KINASES,ABSCISIC-ACID BIOSYNTHESIS,SEED DEVELOPMENT,GENE-EXPRESSION,SALT STRESS,RECEPTORS,MUTANTS,ENCODES,GROWTH,LOCUS}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{11}},
  title        = {{Arabidopsis hypocotyl adventitious root formation is suppressed by ABA signaling}},
  url          = {{http://doi.org/10.3390/genes12081141}},
  volume       = {{12}},
  year         = {{2021}},
}

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