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Plant function and evolutionary biology
RESEARCH FRONT

Polyols as biomarkers and bioindicators for 21st century plant breeding

Andrew Merchant A D and Andreas A. Richter B C
+ Author Affiliations
- Author Affiliations

A Faculty of Agriculture Food and Natural Resources, University of Sydney, Suite 401 Biomedical Building, 1 Central Avenue, Australian Technology Park, Everleigh, NSW 2015, Australia.

B Department of Chemical Ecology and Ecosystem Research, University of Vienna. Althanstrasse 14 1090 Vienna, Austria.

C School of Earth and Environment, Ecosystems Research Group, University of Western Australia, Perth, WA, Australia.

D Corresponding author. Email: andrew.merchant@sydney.edu.au

Functional Plant Biology 38(12) 934-940 https://doi.org/10.1071/FP11105
Submitted: 28 April 2011  Accepted: 10 August 2011   Published: 5 October 2011

Abstract

Characterising changes in the plant metabolome is central to understanding adaptive responses to environmental change. New and improved quantitative and qualitative technologies have enabled the characterisation of plant metabolism at unprecedented scales and precision. New frontiers have therefore emerged for improving our understanding of the adaptability of plant metabolic networks. However, despite these advances, outcomes for ‘in field’ plant management remain largely based on subsets of plant metabolism due to broader scale network complexity. The synthesis and occurrence of polyols offer considerable promise as bioindicators of plant health and biomarkers for use as selective traits for plant improvement. Polyols are polyohydroxy compounds that may be either open chain (acyclic) alditols or cyclic compounds (cyclohexan-hexols), usually termed cyclitols or inositols. Here we highlight the functions of polyols in stress acclimation or amelioration and as sinks for carbon and indicate their potential for the development of integrated measures of plant function using new technologies in 21st century plant breeding.

Additional keywords: alditol, carbon partitioning, cyclitol, metabolites.


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