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The use of metabolomics in plant chemotaxonomy: current challenges and future opportunities

Plants produce large numbers of metabolites of diversified structures and abundance that play important roles in plant growth, development, and response to environments. Generally, these metabolites are classified into primary and specialized metabolites. The former are indispensable for the growth and development of a plant, while the latter are not essential but are crucial for a plant to survive under stress conditions by maintaining a delicate balance with the environment. Primary metabolites are highlyconserved in their structures and abundances while specialized metabolites differ widely across plant kingdoms. The ability to synthesize specialized compounds evolved in different plant lineages and it is rooted in their evolution-based specific biological purpose what make metabolomic profiling of specialized metabolites very useful in chemotaxonomy. The main focus of presentation is to provide an overview of basic operational principles of various modern metabolomic platform (GC-MS, HPLC-QToF, MALDI_Imaging and NMR) used in chemotaxonomic studies and to present examples of their applications in the recent study of Brassicaceaeand Psilotaceae plants.

specialized metabolites ; plant metabolomic ; chemotaxonomy ; Brassicaceae ; Psilotaceae

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