Sugars, signalling, and plant development

Eveland, A. L., Jackson, D. P. (May 2012) Sugars, signalling, and plant development. Journal of Experimental Botany, 63 (9). pp. 3367-3377. ISSN 0022-0957

URL: http://www.ncbi.nlm.nih.gov/pubmed/22140246
DOI: 10.1093/jxb/err379

Abstract

Like all organisms, plants require energy for growth. They achieve this by absorbing light and fixing it into a usable, chemical form via photosynthesis. The resulting carbohydrate (sugar) energy is then utilized as substrates for growth, or stored as reserves. It is therefore not surprising that modulation of carbohydrate metabolism can have profound effects on plant growth, particularly cell division and expansion. However, recent studies on mutants such as stimpy or ramosa3 have also suggested that sugars can act as signalling molecules that control distinct aspects of plant development. This review will focus on these more specific roles of sugars in development, and will concentrate on two major areas: (i) cross-talk between sugar and hormonal signalling; and (ii) potential direct developmental effects of sugars. In the latter, developmental mutant phenotypes that are modulated by sugars as well as a putative role for trehalose-6-phosphate in inflorescence development are discussed. Because plant growth and development are plastic, and are greatly affected by environmental and nutritional conditions, the distinction between purely metabolic and specific developmental effects is somewhat blurred, but the focus will be on clear examples where sugar-related processes or molecules have been linked to known developmental mechanisms.

Item Type: Paper
Uncontrolled Keywords: Meristem plant development ramosa3 stimpy sugars trehalose synthase phosphatase complex d-type cyclin arabidopsis-thaliana trehalose metabolism gene-expression abscisic-acid sucrose metabolism escherichia-coli trehalose-6-phosphate synthase-1 differential regulation
Subjects: organs, tissues, organelles, cell types and functions > tissues types and functions > meristem
organs, tissues, organelles, cell types and functions
organism description > plant
organs, tissues, organelles, cell types and functions > tissues types and functions
CSHL Authors:
Communities: CSHL labs > Jackson lab
CSHL Post Doctoral Fellows
Depositing User: Matt Covey
Date: May 2012
Date Deposited: 31 Jan 2013 19:49
Last Modified: 01 May 2013 21:30
Related URLs:
URI: http://repository.cshl.edu/id/eprint/26937

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