FIDDLEHEAD, a gene required to suppress epidermal cell interactions in Arabidopsis, encodes a putative lipid biosynthetic enzyme

Pruitt, R. E., Vielle-Calzada, J. P., Ploense, S. E., Grossniklaus, U., Lolle, S. J. (February 2000) FIDDLEHEAD, a gene required to suppress epidermal cell interactions in Arabidopsis, encodes a putative lipid biosynthetic enzyme. Proceedings of the National Academy of Sciences of the United States of America, 97 (3). pp. 1311-1316. ISSN 0027-8424

URL: http://www.ncbi.nlm.nih.gov/pubmed/10655527
DOI: 10.1073/pnas.97.3.1311

Abstract

In plants, the outer epidermal cell wall and cuticle presents a semipermeable barrier that maintains the external integrity of the plant and regulates the passage of various classes of molecules into and out of the organism. During vegetative development, the epidermal cells remain relatively inert, failing to respond to wounding or grafting. During reproductive development and fertilization, however, the epidermis is developmentally more labile and participates in two types of contact-mediated cell interactions: organ fusion and pollen hydration. Here we describe the isolation and characterization of one gene whose product normally functions in blocking both types of epidermal cell interactions during vegetative development: the FIDDLEHEAD gene. As suggested by previous biochemical analyses, the gene encodes a protein that is probably involved in the synthesis of long-chain lipids found in the cuticle and shows similarity to a large class of genes encoding proteins related to beta-ketoacyl-CoA synthases and chalcone synthases, In situ hybridization reveals an epidermal pattern of expression consistent with a role for this protein in the synthesis of lipid components that are thought to localize extracellularly and probably modify the properties of the cuticle.

Item Type: Paper
Uncontrolled Keywords: THALIANA POLLEN WALL MUTANT EMBRYOGENESIS MORPHOGENESIS PATHWAY FUSION GROWTH MAIZE
Subjects: organism description > plant > Arabidopsis
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 > Grossniklaus lab
Depositing User: Matt Covey
Date: February 2000
Date Deposited: 30 Jan 2014 21:36
Last Modified: 30 Jan 2014 21:36
PMCID: PMC15605
Related URLs:
URI: http://repository.cshl.edu/id/eprint/29388

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