Liposomes as selenium nanocarriers for foliar application to wheat plants : A biofortification strategy
Viltres-Portales, Marcia (Universitat Autònoma de Barcelona. Departament de Química)
Sánchez-Martín, María-Jesús (Universitat Autònoma de Barcelona. Departament de Química)
Boada, Roberto (Universitat Autònoma de Barcelona. Departament de Química)
Llugany i Ollé, Mercè (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Valiente Malmagro, Manuel (Universitat Autònoma de Barcelona. Departament de Química)

Date:	2024
Abstract:	In the present work, liposomes have been used as nanocarriers in the biofortification of wheat plants with selenium (Se) through foliar application. Liposomal formulations were prepared using 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and Phospholipon®90H (P90H) (average size <100 nm), loaded with different concentrations of inorganic Se (selenite and selenate) and applied twice to the plants in the stage of vegetative growth. Liposomes enhanced Se uptake by wheat plants compared to direct application. The highest Se enrichment was achieved using the phospholipid DPPC and a concentration of 1000 μmol·L−1 of Se without affecting the biomass, chlorophylls, carotenoids, and the concentration of mineral nutrients of the plants. The chemical speciation of Se in the plants was further investigated by X-ray absorption spectroscopy (XAS). The results from XAS spectra revealed that most of the inorganic Se was transformed to organic Se and that the use of liposomes influenced the proportion of C-Se-C over C-Se-Se-C species.
Grants:	European Commission 101007630
Note:	Altres ajuts: acords transformatius de la UAB
Note:	Altres ajuts: The XAS experiment has been founded by ALBA synchrotron thought granted proposal (grant reference: 2022097174)
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Biofortification ; Liposomes ; Se speciation ; Wheat ; XANES
Published in:	Food chemistry, Vol. 448 (August 2024) , art. 139123, ISSN 1873-7072

DOI: 10.1016/j.foodchem.2024.139123
PMID: 38552461

10 p, 4.2 MB

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