GMPOZ, a BTB/POZ domain nuclear protein, is a regulator of hormone responsive gene expression in barley aleurone

Fiona J. Woodger; John V. Jacobsen; Frank Gubler

doi:10.1093/pcp/pch100

GMPOZ, a BTB/POZ domain nuclear protein, is a regulator of hormone responsive gene expression in barley aleurone

Fiona J. Woodger^*, John V. Jacobsen, Frank Gubler

^*Corresponding author for this work

Division of Plant Sciences

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

GAMYB is a GA-responsive activator of hydrolase gene expression in the aleurone layer of germinated cereal grains. We have isolated a putative GAMYB-binding protein, GMPOZ, which contains a BTB/POZ domain found in certain animal transcriptional regulators. Although BTB/ POZ domain proteins are numerous in plants, very few are yet characterized. We found that GMPOZ is nuclear localized and that GMPOZ mRNA is expressed highly in anthers as well as aleurone. Transient silencing of the GMPOZ gene suggests that GMPOZ is involved in hormone responsive gene expression in aleurone.

Original language	English
Pages (from-to)	945-950
Number of pages	6
Journal	Plant and Cell Physiology
Volume	45
Issue number	7
DOIs	https://doi.org/10.1093/pcp/pch100
Publication status	Published - Jul 2004

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title = "GMPOZ, a BTB/POZ domain nuclear protein, is a regulator of hormone responsive gene expression in barley aleurone",

abstract = "GAMYB is a GA-responsive activator of hydrolase gene expression in the aleurone layer of germinated cereal grains. We have isolated a putative GAMYB-binding protein, GMPOZ, which contains a BTB/POZ domain found in certain animal transcriptional regulators. Although BTB/ POZ domain proteins are numerous in plants, very few are yet characterized. We found that GMPOZ is nuclear localized and that GMPOZ mRNA is expressed highly in anthers as well as aleurone. Transient silencing of the GMPOZ gene suggests that GMPOZ is involved in hormone responsive gene expression in aleurone.",

keywords = "Aleurone α-amylase, BTB/POZ domain, GAMYB, Gibberellin",

author = "Woodger, {Fiona J.} and Jacobsen, {John V.} and Frank Gubler",

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T1 - GMPOZ, a BTB/POZ domain nuclear protein, is a regulator of hormone responsive gene expression in barley aleurone

AU - Woodger, Fiona J.

AU - Jacobsen, John V.

AU - Gubler, Frank

PY - 2004/7

Y1 - 2004/7

N2 - GAMYB is a GA-responsive activator of hydrolase gene expression in the aleurone layer of germinated cereal grains. We have isolated a putative GAMYB-binding protein, GMPOZ, which contains a BTB/POZ domain found in certain animal transcriptional regulators. Although BTB/ POZ domain proteins are numerous in plants, very few are yet characterized. We found that GMPOZ is nuclear localized and that GMPOZ mRNA is expressed highly in anthers as well as aleurone. Transient silencing of the GMPOZ gene suggests that GMPOZ is involved in hormone responsive gene expression in aleurone.

AB - GAMYB is a GA-responsive activator of hydrolase gene expression in the aleurone layer of germinated cereal grains. We have isolated a putative GAMYB-binding protein, GMPOZ, which contains a BTB/POZ domain found in certain animal transcriptional regulators. Although BTB/ POZ domain proteins are numerous in plants, very few are yet characterized. We found that GMPOZ is nuclear localized and that GMPOZ mRNA is expressed highly in anthers as well as aleurone. Transient silencing of the GMPOZ gene suggests that GMPOZ is involved in hormone responsive gene expression in aleurone.

KW - Aleurone α-amylase

KW - BTB/POZ domain

KW - GAMYB

KW - Gibberellin

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DO - 10.1093/pcp/pch100

M3 - Article

SN - 0032-0781

VL - 45

SP - 945

EP - 950

JO - Plant and Cell Physiology

JF - Plant and Cell Physiology

IS - 7

ER -

GMPOZ, a BTB/POZ domain nuclear protein, is a regulator of hormone responsive gene expression in barley aleurone

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