Abstract
The Special Issue is designed to provide an insight on the variability of the possible applications of the metabolomic approach within the field of plant sciences. The possibility to relatively quantify and putatively annotate hundreds to thousands of compounds has enabled scientists to obtain data on plant functions in previously unimaginable detail. Though the field is still evolving at a rapid pace, it is now clear that metabolomics has already become an efficient tool in the toolkit of colleagues studying secondary metabolism, plant physiology, plant-microbe interactions and several other fields, opening up new possibilities in agricultural, phytochemical and other sciences. The current Special Issue presents papers using various measurement techniques, plant genera and metabolite classes.