Advanced search
1 file | 1.36 MB

Ethylene upregulates auxin biosynthesis in Arabidopsis seedlings to enhance inhibition of root cell elongation

(2007) PLANT CELL. 19(7). p.2186-2196
Author
Organization
Abstract
Ethylene represents an important regulatory signal for root development. Genetic studies in Arabidopsis thaliana have demonstrated that ethylene inhibition of root growth involves another hormone signal, auxin. This study investigated why auxin was required by ethylene to regulate root growth. We initially observed that ethylene positively controls auxin biosynthesis in the root apex. We subsequently demonstrated that ethylene-regulated root growth is dependent on ( 1) the transport of auxin from the root apex via the lateral root cap and ( 2) auxin responses occurring in multiple elongation zone tissues. Detailed growth studies revealed that the ability of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid to inhibit root cell elongation was significantly enhanced in the presence of auxin. We conclude that by upregulating auxin biosynthesis, ethylene facilitates its ability to inhibit root cell expansion.
Keywords
LOCALIZATION, GENE, GROWTH, TRANSPORT, THALIANA, PERMEASE AUX1, POSITIVE REGULATOR, RESPONSE PATHWAY, INSENSITIVE MUTANTS, GRAVITROPISM

Downloads

  • 414204 Swarup et al. 2007 PlantCell19 2186.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 1.36 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Swarup, Ranjan, Paula Perry, Dirk Hagenbeek, Dominique Van Der Straeten, Gerrit Beemster, Göran Sandberg, Rishikesh Bhalerao, Karin Ljung, and Malcolm J Bennett. 2007. “Ethylene Upregulates Auxin Biosynthesis in Arabidopsis Seedlings to Enhance Inhibition of Root Cell Elongation.” Plant Cell 19 (7): 2186–2196.
APA
Swarup, R., Perry, P., Hagenbeek, D., Van Der Straeten, D., Beemster, G., Sandberg, G., Bhalerao, R., et al. (2007). Ethylene upregulates auxin biosynthesis in Arabidopsis seedlings to enhance inhibition of root cell elongation. PLANT CELL, 19(7), 2186–2196.
Vancouver
1.
Swarup R, Perry P, Hagenbeek D, Van Der Straeten D, Beemster G, Sandberg G, et al. Ethylene upregulates auxin biosynthesis in Arabidopsis seedlings to enhance inhibition of root cell elongation. PLANT CELL. 2007;19(7):2186–96.
MLA
Swarup, Ranjan, Paula Perry, Dirk Hagenbeek, et al. “Ethylene Upregulates Auxin Biosynthesis in Arabidopsis Seedlings to Enhance Inhibition of Root Cell Elongation.” PLANT CELL 19.7 (2007): 2186–2196. Print.
@article{414204,
  abstract     = {Ethylene represents an important regulatory signal for root development. Genetic studies in Arabidopsis thaliana have demonstrated that ethylene inhibition of root growth involves another hormone signal, auxin. This study investigated why auxin was required by ethylene to regulate root growth. We initially observed that ethylene positively controls auxin biosynthesis in the root apex. We subsequently demonstrated that ethylene-regulated root growth is dependent on ( 1) the transport of auxin from the root apex via the lateral root cap and ( 2) auxin responses occurring in multiple elongation zone tissues. Detailed growth studies revealed that the ability of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid to inhibit root cell elongation was significantly enhanced in the presence of auxin. We conclude that by upregulating auxin biosynthesis, ethylene facilitates its ability to inhibit root cell expansion.},
  author       = {Swarup, Ranjan and Perry, Paula and Hagenbeek, Dirk and Van Der Straeten, Dominique and Beemster, Gerrit and Sandberg, G{\"o}ran and Bhalerao, Rishikesh and Ljung, Karin and Bennett, Malcolm J},
  issn         = {1040-4651},
  journal      = {PLANT CELL},
  keyword      = {LOCALIZATION,GENE,GROWTH,TRANSPORT,THALIANA,PERMEASE AUX1,POSITIVE REGULATOR,RESPONSE PATHWAY,INSENSITIVE MUTANTS,GRAVITROPISM},
  language     = {eng},
  number       = {7},
  pages        = {2186--2196},
  title        = {Ethylene upregulates auxin biosynthesis in Arabidopsis seedlings to enhance inhibition of root cell elongation},
  url          = {http://dx.doi.org/10.1105/tpc.107.052100},
  volume       = {19},
  year         = {2007},
}

Altmetric
View in Altmetric
Web of Science
Times cited: