Gretchen Hagen
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Explore the profile of Gretchen Hagen including associated specialties, affiliations and a list of published articles.
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21
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3256
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Recent Articles
1.
Hagen G
Essays Biochem
. 2015 Sep;
58:1-12.
PMID: 26374883
The plant hormone auxin (indole-3-acetic acid, IAA) controls growth and developmental responses throughout the life of a plant. A combination of molecular, genetic and biochemical approaches has identified several key...
2.
Lavenus J, Goh T, Guyomarch S, Hill K, Lucas M, Voss U, et al.
Plant Cell
. 2015 May;
27(5):1368-88.
PMID: 25944102
A large number of genes involved in lateral root (LR) organogenesis have been identified over the last decade using forward and reverse genetic approaches in Arabidopsis thaliana. Nevertheless, how these...
3.
Nanao M, Vinos-Poyo T, Brunoud G, Thevenon E, Mazzoleni M, Mast D, et al.
Nat Commun
. 2014 Apr;
5:3617.
PMID: 24710426
The plant hormone auxin is a key morphogenetic regulator acting from embryogenesis onwards. Transcriptional events in response to auxin are mediated by the auxin response factor (ARF) transcription factors and...
4.
Korasick D, Westfall C, Lee S, Nanao M, Dumas R, Hagen G, et al.
Proc Natl Acad Sci U S A
. 2014 Apr;
111(14):5427-32.
PMID: 24706860
In plants, the AUXIN RESPONSE FACTOR (ARF) transcription factor family regulates gene expression in response to auxin. In the absence of auxin, ARF transcription factors are repressed by interaction with...
5.
Wang S, Hagen G, Guilfoyle T
Plant Signal Behav
. 2013 Apr;
8(6):e24526.
PMID: 23603958
Auxin response factors (ARFs), together with auxin/indole acetic acid proteins (Aux/IAAs), are transcription factors that play key roles in regulating auxin-responsive transcription in plants. Current models for auxin signaling predict...
6.
Guilfoyle T, Hagen G
Plant Sci
. 2012 May;
190:82-8.
PMID: 22608522
Auxin Response Factors (ARFs) and Indole Acetic Acid (IAA) proteins contain a similar carboxyl-terminal domain (domain III/IV) that facilitates interactions among these transcription factors as well as other proteins. The...
7.
Li H, Hagen G, Guilfoyle T
Plant Signal Behav
. 2011 May;
6(6):858-60.
PMID: 21543900
The plant hormone auxin regulates the transcription of specific genes through the interplay of Auxin Response Factors (ARFs) and Aux/IAA (IAA) repressors. We have recently shown that stabilized IAA repressors...
8.
Li H, Tiwari S, Hagen G, Guilfoyle T
Plant Physiol
. 2011 Jan;
155(3):1252-63.
PMID: 21252300
Auxin/indole-3-acetic acid (Aux/IAA) proteins function as repressors of auxin response gene expression when auxin concentrations in a cell are low. At elevated auxin concentrations, these repressors are destroyed via the...
9.
Li H, Cheng Y, Murphy A, Hagen G, Guilfoyle T
Plant Physiol
. 2009 Jan;
149(3):1277-88.
PMID: 19129421
Aux/IAA proteins are proposed to be transcriptional repressors that play a crucial role in auxin signaling by interacting with auxin response factors and repressing early/primary auxin response gene expression. In...
10.
Ream T, Haag J, Wierzbicki A, Nicora C, Norbeck A, Zhu J, et al.
Mol Cell
. 2008 Dec;
33(2):192-203.
PMID: 19110459
In addition to RNA polymerases I, II, and III, the essential RNA polymerases present in all eukaryotes, plants have two additional nuclear RNA polymerases, abbreviated as Pol IV and Pol...