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Title: The Arabidopsis WRINKLED1 transcription factor affects auxin homeostasis in roots

Journal Article · · Journal of Experimental Botany
DOI:https://doi.org/10.1093/jxb/erx275· OSTI ID:1427578
 [1];  [2];  [3];  [3];  [4]; ORCiD logo [5]
  1. Michigan State Univ., East Lansing, MI (United States). MSU-DOE Plant Research Laboratory, Department of Biochemistry and Molecular Biology, and Great Lakes Bioenergy Research Center
  2. Michigan State Univ., East Lansing, MI (United States). MSU-DOE Plant Research Laboratory, Great Lakes Bioenergy Research Center, and Department of Plant Biology
  3. Purdue Univ., West Lafayette, IN (United States). Department of Horticulture and Landscape Architecture
  4. Michigan State Univ., East Lansing, MI (United States). Department of Biochemistry and Molecular Biology
  5. Michigan State Univ., East Lansing, MI (United States). MSU-DOE Plant Research Laboratory, Department of Biochemistry and Molecular Biology, Great Lakes Bioenergy Research Center and Department of Plant Biology

WRINKLED1 (WRI1) is a key transcriptional regulator of fatty acid biosynthesis genes in diverse oil-containing tissues. Loss of function of Arabidopsis WRI1 leads to a reduction in the expression of genes for fatty acid biosynthesis and glycolysis, and concomitant strong reduction of seed oil content. The wri1-1 loss-of-function mutant shows reduced primary root growth and decreased acidification of the growth medium. The content of a conjugated form of the plant growth hormone auxin, indole-3-acetic acid (IAA)-Asp, was higher in wri1-1 plants compared with the wild-type. GH3.3, a gene encoding an enzyme involved in auxin degradation, displayed higher expression in the wri1-1 mutant. EMSAs demonstrated that AtWRI1 bound to the promoter of GH3.3. Specific AtWRI1-binding motifs were identified in the promoter of GH3.3. In addition, wri1-1 displayed decreased auxin transport. Expression of some PIN genes, which encode IAA carrier proteins, was reduced in wri1-1 plants as well. Correspondingly, AtWRI1 bound to the promoter regions of some PIN genes. It is well known that auxin exerts its maximum effects at a specific, optimal concentration in roots requiring a finely balanced auxin homeostasis. This process appears to be disrupted when the expression of WRI1 and in turn a subset of its target genes are misregulated, highlighting a role for WRI1 in root auxin homeostasis.

Research Organization:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FC02-07ER64494
OSTI ID:
1427578
Journal Information:
Journal of Experimental Botany, Vol. 68, Issue 16; ISSN 0022-0957
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 32 works
Citation information provided by
Web of Science

References (61)

A Role for Flavin Monooxygenase-Like Enzymes in Auxin Biosynthesis journal January 2001
Transcriptional regulation of PIN genes by FOUR LIPS and MYB88 during Arabidopsis root gravitropism journal November 2015
Composite structure of auxin response elements. journal October 1995
Disruption and overexpression of auxin response factor 8 gene of Arabidopsis affect hypocotyl elongation and root growth habit, indicating its possible involvement in auxin homeostasis in light condition journal September 2004
Increasing the energy density of vegetative tissues by diverting carbon from starch to oil biosynthesis in transgenic Arabidopsis journal February 2011
Contrapuntal Networks of Gene Expression during Arabidopsis Seed Filling journal June 2002
Arabidopsis IAR4 Modulates Auxin Response by Regulating Auxin Homeostasis journal April 2009
BnWRI1 coordinates fatty acid biosynthesis and photosynthesis pathways during oil accumulation in rapeseed journal March 2014
Auxin Transporters--Why So Many? journal December 2009
COP1 mediates the coordination of root and shoot growth by light through modulation of PIN1- and PIN2-dependent auxin transport in Arabidopsis journal August 2012
The Arabidopsis Transcription Factor MYB77 Modulates Auxin Signal Transduction journal August 2007
Subcellular homeostasis of phytohormone auxin is mediated by the ER-localized PIN5 transporter journal June 2009
Auxin: Regulation, Action, and Interaction journal February 2005
Dual Regulation Role of GH3.5 in Salicylic Acid and Auxin Signaling during Arabidopsis- Pseudomonas syringae Interaction journal August 2007
Deletion of a C-terminal intrinsically disordered region of WRINKLED1 affects its stability and enhances oil accumulation in Arabidopsis journal August 2015
Auxin conjugates: their role for plant development and in the evolution of land plants journal February 2011
Phenotypic Plasticity of Adventitious Rooting in Arabidopsis Is Controlled by Complex Regulation of AUXIN RESPONSE FACTOR Transcripts and MicroRNA Abundance journal October 2009
Enhanced phosphorus nutrition in monocots and dicots over-expressing a phosphorus-responsive type I H + -pyrophosphatase journal November 2007
WRINKLED1 encodes an AP2/EREB domain protein involved in the control of storage compound biosynthesis in Arabidopsis journal September 2004
EIR1, a root-specific protein involved in auxin transport, is required for gravitropism in Arabidopsis thaliana journal July 1998
Auxin transport through PIN-FORMED 3 (PIN3) controls shade avoidance and fitness during competition journal December 2010
Variation in Expression and Protein Localization of the PIN Family of Auxin Efflux Facilitator Proteins in Flavonoid Mutants with Altered Auxin Transport in Arabidopsis thaliana journal June 2004
The Conjugated Auxin Indole-3-Acetic Acid–Aspartic Acid Promotes Plant Disease Development journal February 2012
Functional redundancy of PIN proteins is accompanied by auxin-dependentcross-regulation of PIN expression journal September 2005
The PLETHORA Genes Mediate Patterning of the Arabidopsis Root Stem Cell Niche journal October 2004
The MADS transcription factor XAL2/AGL14 modulates auxin transport during Arabidopsis root development by regulating PIN expression journal October 2013
Expression of ZmLEC1 and ZmWRI1 Increases Seed Oil Production in Maize journal May 2010
WRINKLED1, A Ubiquitous Regulator in Oil Accumulating Tissues from Arabidopsis Embryos to Oil Palm Mesocarp journal July 2013
Characterization of plant phenotypes associated with loss-of-function of AtCNGC1, a plant cyclic nucleotide gated cation channel journal July 2006
GH3 expression and IAA-amide synthetase activity in pea (Pisum sativum L.) seedlings are regulated by light, plant hormones and auxinic herbicides journal March 2013
Genome-Wide Identification and Testing of Superior Reference Genes for Transcript Normalization in Arabidopsis journal September 2005
Arabidopsis thaliana GH3.9 influences primary root growth journal January 2007
Regulation of Auxin Homeostasis and Gradients in Arabidopsis Roots through the Formation of the Indole-3-Acetic Acid Catabolite 2-Oxindole-3-Acetic Acid journal October 2013
ydk1-D , an auxin-responsive GH3 mutant that is involved in hypocotyl and root elongation journal January 2004
Mechanism of Auxin-Regulated Gene Expression in Plants journal December 2009
Arabidopsis BPM Proteins Function as Substrate Adaptors to a CULLIN3-Based E3 Ligase to Affect Fatty Acid Metabolism in Plants journal June 2013
14-3-3 protein mediates plant seed oil biosynthesis through interaction with AtWRI1 journal August 2016
The Arabidopsis IDD14, IDD15, and IDD16 Cooperatively Regulate Lateral Organ Morphogenesis and Gravitropism by Promoting Auxin Biosynthesis and Transport journal September 2013
DFL2, a New Member of the Arabidopsis GH3 Gene Family, is Involved in Red Light-Specific Hypocotyl Elongation journal October 2003
DFL1, an auxin-responsive GH3 gene homologue, negatively regulates shoot cell elongation and lateral root formation, and positively regulates the light response of hypocotyl length journal January 2001
ACTIVATOR of Spomin::LUC1/WRINKLED1 of Arabidopsis thaliana Transactivates Sugar-inducible Promoters journal April 2005
Interactions among PIN-FORMED and P-Glycoprotein Auxin Transporters in Arabidopsis journal January 2007
Moss ( Physcomitrella patens ) GH3 proteins act in auxin homeostasis journal November 2008
Duplicate Maize Wrinkled1 Transcription Factors Activate Target Genes Involved in Seed Oil Biosynthesis journal April 2011
Auxin Controls Arabidopsis Adventitious Root Initiation by Regulating Jasmonic Acid Homeostasis journal June 2012
Auxin-related gene families in abiotic stress response in Sorghum bicolor journal May 2010
Jasmonate Response Locus JAR1 and Several Related Arabidopsis Genes Encode Enzymes of the Firefly Luciferase Superfamily That Show Activity on Jasmonic, Salicylic, and Indole-3-Acetic Acids in an Assay for Adenylation journal June 2002
Transcriptional transitions in Nicotiana benthamiana leaves upon induction of oil synthesis by WRINKLED1 homologs from diverse species and tissues journal August 2015
Characterization of an Arabidopsis Enzyme Family That Conjugates Amino Acids to Indole-3-Acetic Acid journal January 2005
Increasing seed mass and oil content in transgenic Arabidopsis by the overexpression of wri1-like gene from Brassica napus journal January 2010
Synergistic effect of WRI1 and DGAT1 coexpression on triacylglycerol biosynthesis in plants journal January 2013
Transcription factor AtTCP14 regulates embryonic growth potential during seed germination in Arabidopsis thaliana journal January 2008
Regulation of Polar Auxin Transport by AtPIN1 in Arabidopsis Vascular Tissue journal December 1998
wrinkled1 : A Novel, Low-Seed-Oil Mutant of Arabidopsis with a Deficiency in the Seed-Specific Regulation of Carbohydrate Metabolism journal September 1998
Regulatory switch enforced by basic helix-loop-helix and ACT-domain mediated dimerizations of the maize transcription factor R journal July 2012
DFL1, an auxin-responsive GH3 gene homologue, negatively regulates shoot cell elongation and lateral root formation, and positively regulates the light response of hypocotyl length: DFL1 as a negative regulator of the auxin signal journal January 2001
GH3-mediated Auxin Homeostasis Links Growth Regulation with Stress Adaptation Response in Arabidopsis journal February 2007
The tobacco bZIP transcription factor BZI-1 binds the GH3 promoter in vivo and modulates auxin-induced transcription journal April 2004
An AP2-type transcription factor, WRINKLED1, of Arabidopsis thaliana binds to the AW-box sequence conserved among proximal upstream regions of genes involved in fatty acid synthesis journal November 2009
Auxin Transport: Down and Out and Up Again journal December 1998
Dead end for auxin conjugates in Physcomitrella? journal February 2009

Cited By (9)

Genome-wide analysis reveals the evolution and structural features of WRINKLED1 in plants journal November 2018
Expression of the Arabidopsis WRINKLED 1 transcription factor leads to higher accumulation of palmitate in soybean seed journal January 2019
Multiple GmWRI1s are redundantly involved in seed filling and nodulation by regulating plastidic glycolysis, lipid biosynthesis and hormone signalling in soybean ( Glycine max ) journal June 2019
Overexpression of GmWRI1b in soybean stably improves plant architecture and associated yield parameters, and increases total seed oil production under field conditions journal January 2020
Isolation and characterization of the EgWRI1 promoter from oil palm (Elaeis guineensis Jacq.) and its response to environmental stress and ethylene journal December 2019
The PIN-FORMED Auxin Efflux Carriers in Plants journal September 2018
WRINKLED1, a “Master Regulator” in Transcriptional Control of Plant Oil Biosynthesis journal July 2019
Molecular Basis of Plant Oil Biosynthesis: Insights Gained From Studying the WRINKLED1 Transcription Factor journal February 2020
Atypical Splicing Accompanied by Skipping Conserved Micro-exons Produces Unique WRINKLED1, An AP2 Domain Transcription Factor in Rice Plants journal July 2019