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Strigolactones spatially influence lateral root development through the cytokinin signaling network

(2016) JOURNAL OF EXPERIMENTAL BOTANY. 67(1). p.379-389
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Abstract
Strigolactones are important rhizosphere signals that act as phytohormones and have multiple functions, including modulation of lateral root (LR) development. Here, we show that treatment with the strigolactone analog GR24 did not affect LR initiation, but negatively influenced LR priming and emergence, the latter especially near the root-shoot junction. The cytokinin module ARABIDOPSIS HISTIDINE KINASE3 (AHK3)/ARABIDOPSIS RESPONSE REGULATOR1 (ARR1)/ARR12 was found to interact with the GR24-dependent reduction in LR development, because mutants in this pathway rendered LR development insensitive to GR24. Additionally, pharmacological analyses, mutant analyses, and gene expression analyses indicated that the affected polar auxin transport stream in mutants of the AHK3/ARR1/ARR12 module could be the underlying cause. Altogether, the data reveal that the GR24 effect on LR development depends on the hormonal landscape that results from the intimate connection with auxins and cytokinins, two main players in LR development.
Keywords
ACTS DOWNSTREAM, ANALOG GR24, CELL-DIFFERENTIATION, BUD OUTGROWTH, LEAF SENESCENCE, DEPENDENT AUXIN GRADIENTS, RESPONSE REGULATORS, ARABIDOPSIS, F-BOX PROTEIN, polar auxin transport, strigolactones, lateral root development, cytokinin signaling, Arabidopsis thaliana, FOUNDER CELLS

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Chicago
Jiang, Lingxiang, Cedrick Matthys, Belen Marquez-Garcia, Carolien De Cuyper, Lien Smet, Annick De Keyser, François-Didier Boyer, Tom Beeckman, Stephen Depuydt, and Sofie Goormachtig. 2016. “Strigolactones Spatially Influence Lateral Root Development Through the Cytokinin Signaling Network.” Journal of Experimental Botany 67 (1): 379–389.
APA
Jiang, Lingxiang, Matthys, C., Marquez-Garcia, B., De Cuyper, C., Smet, L., De Keyser, A., Boyer, F.-D., et al. (2016). Strigolactones spatially influence lateral root development through the cytokinin signaling network. JOURNAL OF EXPERIMENTAL BOTANY, 67(1), 379–389.
Vancouver
1.
Jiang L, Matthys C, Marquez-Garcia B, De Cuyper C, Smet L, De Keyser A, et al. Strigolactones spatially influence lateral root development through the cytokinin signaling network. JOURNAL OF EXPERIMENTAL BOTANY. 2016;67(1):379–89.
MLA
Jiang, Lingxiang, Cedrick Matthys, Belen Marquez-Garcia, et al. “Strigolactones Spatially Influence Lateral Root Development Through the Cytokinin Signaling Network.” JOURNAL OF EXPERIMENTAL BOTANY 67.1 (2016): 379–389. Print.
@article{7081692,
  abstract     = {Strigolactones are important rhizosphere signals that act as phytohormones and have multiple functions, including modulation of lateral root (LR) development. Here, we show that treatment with the strigolactone analog GR24 did not affect LR initiation, but negatively influenced LR priming and emergence, the latter especially near the root-shoot junction. The cytokinin module ARABIDOPSIS HISTIDINE KINASE3 (AHK3)/ARABIDOPSIS RESPONSE REGULATOR1 (ARR1)/ARR12 was found to interact with the GR24-dependent reduction in LR development, because mutants in this pathway rendered LR development insensitive to GR24. Additionally, pharmacological analyses, mutant analyses, and gene expression analyses indicated that the affected polar auxin transport stream in mutants of the AHK3/ARR1/ARR12 module could be the underlying cause. Altogether, the data reveal that the GR24 effect on LR development depends on the hormonal landscape that results from the intimate connection with auxins and cytokinins, two main players in LR development.},
  author       = {Jiang, Lingxiang and Matthys, Cedrick and Marquez-Garcia, Belen and De Cuyper, Carolien and Smet, Lien and De Keyser, Annick and Boyer, Fran\c{c}ois-Didier and Beeckman, Tom and Depuydt, Stephen and Goormachtig, Sofie},
  issn         = {0022-0957},
  journal      = {JOURNAL OF EXPERIMENTAL BOTANY},
  keyword      = {ACTS DOWNSTREAM,ANALOG GR24,CELL-DIFFERENTIATION,BUD OUTGROWTH,LEAF SENESCENCE,DEPENDENT AUXIN GRADIENTS,RESPONSE REGULATORS,ARABIDOPSIS,F-BOX PROTEIN,polar auxin transport,strigolactones,lateral root development,cytokinin signaling,Arabidopsis thaliana,FOUNDER CELLS},
  language     = {eng},
  number       = {1},
  pages        = {379--389},
  title        = {Strigolactones spatially influence lateral root development through the cytokinin signaling network},
  url          = {http://dx.doi.org/10.1093/jxb/erv478},
  volume       = {67},
  year         = {2016},
}

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