Advanced search
1 file | 2.46 MB

Polarization of PIN3-dependent auxin transport for hypocotyl gravitropic response in Arabidopsis thaliana

(2011) PLANT JOURNAL. 67(5). p.817-826
Author
Organization
Abstract
Gravitropism aligns plant growth with gravity. It involves gravity perception and the asymmetric distribution of the phytohormone auxin. Here we provide insights into the mechanism for hypocotyl gravitropic growth. We show that the Arabidopsis thaliana PIN3 auxin transporter is required for the asymmetric auxin distribution for the gravitropic response. Gravistimulation polarizes PIN3 to the bottom side of hypocotyl endodermal cells, which correlates with an increased auxin response at the lower hypocotyl side. Both PIN3 polarization and hypocotyl bending require the activity of the trafficking regulator GNOM and the protein kinase PINOID. Our data suggest that gravity-induced PIN3 polarization diverts the auxin flow to mediate the asymmetric distribution of auxin for gravitropic shoot bending.
Keywords
GNOM ARF GEF, ROOT GRAVITROPISM, PINOID kinase, PIN polarity, auxin transport, hypocotyl gravitropism, SIGNAL-TRANSDUCTION, PIN PHOSPHORYLATION, LATERAL TRANSPORT, EFFLUX, PROTEIN, GRADIENTS, CARRIER, GROWTH, TRAFFICKING

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 2.46 MB

Citation

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

Chicago
Rakusova, Hana, Javier Gallego-Bartolomé, Marleen Vanstraelen, Helene Boisivon, David Alabadi, Manuel A Blázquez, Eva Benkova, and Jiri Friml. 2011. “Polarization of PIN3-dependent Auxin Transport for Hypocotyl Gravitropic Response in Arabidopsis Thaliana.” Plant Journal 67 (5): 817–826.
APA
Rakusova, H., Gallego-Bartolomé, J., Vanstraelen, M., Boisivon, H., Alabadi, D., Blázquez, M. A., Benkova, E., et al. (2011). Polarization of PIN3-dependent auxin transport for hypocotyl gravitropic response in Arabidopsis thaliana. PLANT JOURNAL, 67(5), 817–826.
Vancouver
1.
Rakusova H, Gallego-Bartolomé J, Vanstraelen M, Boisivon H, Alabadi D, Blázquez MA, et al. Polarization of PIN3-dependent auxin transport for hypocotyl gravitropic response in Arabidopsis thaliana. PLANT JOURNAL. 2011;67(5):817–26.
MLA
Rakusova, Hana, Javier Gallego-Bartolomé, Marleen Vanstraelen, et al. “Polarization of PIN3-dependent Auxin Transport for Hypocotyl Gravitropic Response in Arabidopsis Thaliana.” PLANT JOURNAL 67.5 (2011): 817–826. Print.
@article{1939603,
  abstract     = {Gravitropism aligns plant growth with gravity. It involves gravity perception and the asymmetric distribution of the phytohormone auxin. Here we provide insights into the mechanism for hypocotyl gravitropic growth. We show that the Arabidopsis thaliana PIN3 auxin transporter is required for the asymmetric auxin distribution for the gravitropic response. Gravistimulation polarizes PIN3 to the bottom side of hypocotyl endodermal cells, which correlates with an increased auxin response at the lower hypocotyl side. Both PIN3 polarization and hypocotyl bending require the activity of the trafficking regulator GNOM and the protein kinase PINOID. Our data suggest that gravity-induced PIN3 polarization diverts the auxin flow to mediate the asymmetric distribution of auxin for gravitropic shoot bending.},
  author       = {Rakusova, Hana and Gallego-Bartolom{\'e}, Javier and Vanstraelen, Marleen and Boisivon, Helene and Alabadi, David and Bl{\'a}zquez, Manuel A and Benkova, Eva and Friml, Jiri},
  issn         = {0960-7412},
  journal      = {PLANT JOURNAL},
  keyword      = {GNOM ARF GEF,ROOT GRAVITROPISM,PINOID kinase,PIN polarity,auxin transport,hypocotyl gravitropism,SIGNAL-TRANSDUCTION,PIN PHOSPHORYLATION,LATERAL TRANSPORT,EFFLUX,PROTEIN,GRADIENTS,CARRIER,GROWTH,TRAFFICKING},
  language     = {eng},
  number       = {5},
  pages        = {817--826},
  title        = {Polarization of PIN3-dependent auxin transport for hypocotyl gravitropic response in Arabidopsis thaliana},
  url          = {http://dx.doi.org/10.1111/j.1365-313X.2011.04636.x},
  volume       = {67},
  year         = {2011},
}

Altmetric
View in Altmetric
Web of Science
Times cited: