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Title

Linking the morphological and metabolomic response of Lactuca sativa L exposed to emerging contaminants using GC × GC-MS and chemometric tools

AuthorsHurtado, Carlos ; Parastar, Hadi; Matamoros, Víctor ; Piña, Benjamin; Tauler, Romà; Bayona Termens, Josep María
KeywordsCECs
Lactuca sativa L
emerging contaminants
GC
GC-MS
Issue Date1-Dec-2017
PublisherSpringer Nature
CitationScientific Reports 7 (1): 6546 (2017)
AbstractThe occurrence of contaminants of emerging concern (CECs) in irrigation waters (up to low μg L-1) and irrigated crops (ng g-1 in dry weight) has been reported, but the linkage between plant morphological changes and plant metabolomic response has not yet been addressed. In this study, a non-targeted metabolomic analysis was performed on lettuce (Lactuca sativa L) exposed to 11 CECs (pharmaceuticals, personal care products, anticorrosive agents and surfactants) by irrigation. The plants were watered with different CEC concentrations (0-50 μg L-1) for 34 days under controlled conditions and then harvested, extracted, derivatised and analysed by comprehensive two-dimensional gas chromatography coupled to a time-of-flight mass spectrometer (GC × GC-TOFMS). The resulting raw data were analysed using multivariate curve resolution (MCR) and partial least squares (PLS) methods. The metabolic response indicates that exposure to CECs at environmentally relevant concentrations (0.05 μg L-1) can cause significant metabolic alterations in plants (carbohydrate metabolism, the citric acid cycle, pentose phosphate pathway and glutathione pathway) linked to changes in morphological parameters (leaf height, stem width) and chlorophyll content. © 2017 The Author(s).
Publisher version (URL)https://doi.org/10.1038/s41598-017-06773-0
URIhttp://hdl.handle.net/10261/167984
DOI10.1038/s41598-017-06773-0
Appears in Collections:(IDAEA) Artículos
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