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Author Waller,F., Furuya,M. and Nick,P.
Title OsARF1, an auxin response factor from rice, is auxin-regulated and classifies as a primary auxin responsive gene.
Abstract:
We screened for auxin-induced genes with an expression correlated to the auxin-induced growth response from rice coleoptiles by fluorescent differential display. A rice homologue of the auxin response factor (ARF) family of transcriptional regulators, OsARF1, was identified. An OsARF1:GFP fusion protein was localized to the nucleus. Steady-state levels of OsARF1 mRNA correlated positively with auxin-dependent differential growth: gravitropic stimulation enhanced the amount of OsARF1 transcript in the lower, faster-growing flank accompanied by a decrease in the upper flank of gravitropically stimulated rice coleoptiles. Exogenous auxin up-regulated the steady-state level of OsARF1 mRNA within 15-30 min. This up-regulation is independent of de novo protein synthesis. Thus, OsARF1 is the first ARF that classifies as an early auxin-responsive gene. The observed auxin-dependent regulation comprises a new level of regulation in auxin-induced gene expression and is discussed as a possible feedback mechanism in plant growth control.
Journal Plant Mol. Biol.
Country
Volume 50(3)
Pages 415-425
Year 2002
PubMed ID 12369618
PubMed Central ID -
DOI 10.1023/A:1019818110761
URL -
Relation
Gene ARF1 ARF16
INSD AJ306306
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
-
Stages in Each Organ
- Muant Lines (Gene)
-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase