title: Comprehensive MS and Solid-State NMR Metabolomic Profiling Reveals Molecular Variations in Native Periderms from Four Solanum tuberosum Potato Cultivars.
abstract: The potato (Solanum tuberosum L.) ranks third in worldwide consumption among food crops. Whereas disposal of potato peels poses significant challenges for the food industry, secondary metabolites in these tissues are also bioactive and essential to crop development. The diverse primary and secondary metabolites reported in whole tubers and wound-healing tissues prompted a comprehensive profiling study of native periderms from four cultivars with distinctive skin morphologies and commercial food uses. Polar and nonpolar soluble metabolites were extracted concurrently, analyzed chromatographically, and characterized with mass spectrometry; the corresponding solid interfacial polymeric residue was examined by solid-state13C NMR. In total, 112 secondary metabolites were found in the phellem tissues; multivariate analysis identified 10 polar and 30 nonpolar potential biomarkers that distinguish a single cultivar among Norkotah Russet, Atlantic, Chipeta, and Yukon Gold cultivars which have contrasting russeting features. Compositional trends are interpreted in the context of periderm protective function.
authors.affiliation: Department of Chemistry and Biochemistry, The City College of New York , City University of New York Ph.D. Programs in Chemistry and Biochemistry, and CUNY Institute for Macromolecular Assemblies, New York, New York 10031, United States.
authors.forename: Wenlin
authors.initials: W
authors.lastname: Huang
authors.affiliation: Laboratori del Suro, Departament de Biologia, University of Girona , Campus Montilivi s/n, Girona, E-17071 Spain.
authors.forename: Olga
authors.initials: O
authors.lastname: Serra
authors.affiliation: Department of Chemistry and Biochemistry, The City College of New York , City University of New York Ph.D. Programs in Chemistry and Biochemistry, and CUNY Institute for Macromolecular Assemblies, New York, New York 10031, United States.
authors.forename: Keyvan
authors.initials: K
authors.lastname: Dastmalchi
authors.affiliation: Department of Chemistry and Biochemistry, The City College of New York , City University of New York Ph.D. Programs in Chemistry and Biochemistry, and CUNY Institute for Macromolecular Assemblies, New York, New York 10031, United States.
authors.forename: Liqing
authors.initials: L
authors.lastname: Jin
authors.affiliation: Department of Chemistry and Biochemistry, The City College of New York , City University of New York Ph.D. Programs in Chemistry and Biochemistry, and CUNY Institute for Macromolecular Assemblies, New York, New York 10031, United States.
authors.forename: Lijia
authors.initials: L
authors.lastname: Yang
authors.affiliation: Department of Chemistry and Biochemistry, The City College of New York , City University of New York Ph.D. Programs in Chemistry and Biochemistry, and CUNY Institute for Macromolecular Assemblies, New York, New York 10031, United States.
authors.forename: Ruth E
authors.identifier: http://orcid.org/0000-0002-3132-4580
authors.initials: RE
authors.lastname: Stark
mesh_terms: D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D013058:Mass Spectrometry / Q000379:methods; D055432:Metabolomics / Q000379:methods; D035281:Plant Tubers / Q000737:chemistry* / Q000145:classification / Q000254:growth & development / Q000378:metabolism; D064210:Secondary Metabolism; D011198:Solanum tuberosum / Q000737:chemistry / Q000145:classification / Q000254:growth & development / Q000378:metabolism*
keywords: LC-MS; Solanum tuberosum L.; TOF-MS; metabolomics; potato skin; suberin