1. Plant Metabolomics Laboratory; Instituto de Tecnologia Química e Biológica António Xavier-Universidade Nova de Lisboa (ITQB-UNL); Avenida República 2780-157 Oeiras Portugal
2. Instituto de Medicina Molecular; Faculdade de Medicina da Universidade de Lisboa; Avenida Professor Egas Moniz 1649-028 Lisboa Portugal
3. Max-Planck-partner group at the Brazilian Bioethanol Science and Technology Laboratory/CNPEM; 13083-970 Campinas-SP Brazil
4. Institute of Biology I; RWTH Aachen University; Worringerweg 1 52074 Aachen Germany
5. Jane Thomas-Oates; Centre of Excellence in Mass Spectrometry, and Department of Chemistry; University of York; Heslington York YO10 5DD UK