Biochemical and physiological determinants of intramolecular isotope patterns in sucrose from C3, C4 and CAM plants accessed by isotopic 13C NMR spectrometry: A viewpoint

Alexis Gilbert, Virginie Silvestre, Richard J. Robins, Gérald S. Remaud, Guillaume Tcherkez*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

29 Citations (Scopus)

Abstract

Covering: up to the end of 2011 This paper discusses the biochemical and physiological factors underlying the site-specific, non-random distribution of 13C/12C isotope ratios within plant metabolites, which can be determined by isotopic 13C NMR spectrometry. It focuses on the key metabolite glucose and on enzyme activities and physiological processes that are responsible for the carbon isotope patterns in glucose from different biological origins. It further considers how intramolecular 13C/ 12C isotope ratios in glucose can be exploited to understand fundamental aspects of plant biological chemistry, how these are related to environmental parameters and how these influence metabolites beyond central sugar metabolism. It does not purport to be an extensive overview of intramolecular isotopic patterns. Rather, the aim is to show how a full understanding of 12C/13C fractionations occurring during plant metabolism can only be possible once the factors that define intramolecular isotope values are better delineated.

Original languageEnglish
Pages (from-to)476-486
Number of pages11
JournalNatural Product Reports
Volume29
Issue number4
DOIs
Publication statusPublished - Apr 2012
Externally publishedYes

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