Journal article
J. Reed, Miin-Feng Wu, P. Reeves, Charles Hodgens, Vandana Yadav, S. Hayes, R. Pierik
Plant Physiology, 2018
Plant Physiology, 2018
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APA
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Reed, J., Wu, M.-F., Reeves, P., Hodgens, C., Yadav, V., Hayes, S., & Pierik, R. (2018). Three Auxin Response Factors Promote Hypocotyl Elongation1,2[OPEN]. Plant Physiology.
Chicago/Turabian
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Reed, J., Miin-Feng Wu, P. Reeves, Charles Hodgens, Vandana Yadav, S. Hayes, and R. Pierik. “Three Auxin Response Factors Promote Hypocotyl Elongation1,2[OPEN].” Plant Physiology (2018).
MLA
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Reed, J., et al. “Three Auxin Response Factors Promote Hypocotyl Elongation1,2[OPEN].” Plant Physiology, 2018.
BibTeX Click to copy
@article{j2018a,
title = {Three Auxin Response Factors Promote Hypocotyl Elongation1,2[OPEN]},
year = {2018},
journal = {Plant Physiology},
author = {Reed, J. and Wu, Miin-Feng and Reeves, P. and Hodgens, Charles and Yadav, Vandana and Hayes, S. and Pierik, R.}
}
Abstract
Three Auxin Response Factors control hypocotyl elongation in Arabidopsis under environmental conditions that require rapid growth. The hormone auxin regulates growth largely by affecting gene expression. By studying Arabidopsis (Arabidopsis thaliana) mutants deficient in AUXIN RESPONSE FACTORS (ARFs), we have identified three ARF proteins that are required for auxin-responsive hypocotyl elongation. Plants deficient in these factors have reduced responses to environmental conditions that increase auxin levels, including far-red-enriched light and high temperature. Despite having decreased auxin responses, the ARF-deficient plants responded to brassinosteroid and gibberellin, indicating that different hormones can act partially independently. Aux/IAA proteins, encoded by IAA genes, interact with ARF proteins to repress auxin response. Silencing expression of multiple IAA genes increased hypocotyl elongation, suggesting that Aux/IAA proteins modulate ARF activity in hypocotyls in a potential negative feedback loop.
