Gibberellins and gene control in cereal aleurone cells

Baulcombe, D., Lazarus, C., Martienssen, R. (1984) Gibberellins and gene control in cereal aleurone cells. J Embryol Exp Morphol, 83 Sup. pp. 119-135. ISSN 0022-0752

URL: http://www.ncbi.nlm.nih.gov/pubmed/6335895

Abstract

The production of hydrolytic enzymes in the germinating cereal grain is considered as a model for plant cell differentiation. Recent literature is reviewed which suggests that gibberellins are involved in this process, but in a less straightforward manner than considered previously. It seems likely that only a subfraction of gibberellin is active and that production of this gibberellin is actually in the hydrolase-producing cells. These include aleurone cells and also the scutellar epithelial cells. At the intracellular level the action of gibberellin results in the accumulation of alpha-amylase mRNA and also mRNA for other unidentified proteins, referred to as gibb-ons. The alpha-amylase mRNAs are transcribed from two distinct gene families. The pattern of expression of alpha-amylase and gibb-on mRNAs is consistent with a common gibberellin-stimulated mechanism of control of for all of these genes. However it seems likely from experiments with ABA and from observations on gibb-on gene expression in non-aleurone cells that gibberellin does not have a role determining the specificity of gene expression, but rather acts as a general stimulator of mRNA accumulation.

Item Type: Paper
Uncontrolled Keywords: Electrophoresis, Agar Gel Gene Expression Regulation Gibberellins Plant Cells Plant Development Plants RNA, Messenger Transcription, Genetic Triticum alpha-Amylases
Subjects: bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > genes, structure and function
organism description > plant
CSHL Authors:
Communities: CSHL labs > Martienssen lab
Depositing User: Matt Covey
Date: 1984
Date Deposited: 07 Jan 2014 14:59
Last Modified: 07 Jan 2014 14:59
Related URLs:
URI: http://repository.cshl.edu/id/eprint/29188

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