Good vibrations: Raman spectroscopy enables insights into plant biochemical composition†
Alonso Zavafer
A B C * and Marilyn C. Ball A
+ Author Affiliations
- Author Affiliations
A Plant Science Division, Research School of Biology, The Australian National University, Canberra, ACT 2000, Australia.
B Climate Change Cluster, University of Technology Sydney, Ultimo, NSW 2001, Australia.
C Present address: Department Biological Sciences and Yousef Haj-Ahmad Department of Engineering, Brock University, St. Catherines, ON, Canada.
Functional Plant Biology 50(1) 1-16 https://doi.org/10.1071/FP21335
Submitted: 30 November 2021 Accepted: 20 September 2022 Published: 19 October 2022
© 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing
Abstract
Non-invasive techniques are needed to enable an integrated understanding of plant metabolic responses to environmental stresses. Raman spectroscopy is one such technique, allowing non-destructive chemical characterisation of samples in situ and in vivo and resolving the chemical composition of plant material at scales from microns to metres. Here, we review Raman band assignments of pigments, structural and non-structural carbohydrates, lipids, proteins and secondary metabolites in plant material and consider opportunities this technology raises for studies in vascular plant physiology.
Keywords: biospectroscopy, chemometrics, chlorophyll a fluorescence, leaf light penetration, metabolomics, microscopy, microspectroscopy, remote sensing.
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