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15 results on '"De Salvador, Flavio Roberto"'

1. Comparison of the metabolic profile of pecan nuts cultivars [ Carya illinoinensis (Wangenh.) K. Koch] by NMR spectroscopy

Author

Frezza, Claudio, primary, Sciubba, Fabio, additional, Giampaoli, Ottavia, additional, De Salvador, Flavio Roberto, additional, Lucarini, Massimo, additional, Engel, Petra, additional, Patriarca, Adriano, additional, Spagnoli, Mariangela, additional, Gianferri, Raffaella, additional, Delfini, Maurizio, additional, Di Cocco, Maria Enrica, additional, and De Vita, Daniela, additional

Published
2023
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5. NMR-based metabolic study of leaves of three species of Actinidia with different degrees of susceptibility to Pseudomonas syringae pv. actinidiae.

Author

Sciubba, Fabio, Di Cocco, Maria Enrica, Angori, Giulia, Spagnoli, Mariangela, De Salvador, Flavio Roberto, Engel, Petra, and Delfini, Maurizio

Subjects
PSEUDOMONAS syringae, NUCLEAR magnetic resonance spectroscopy, ACTINIDIA, MULTIVARIATE analysis, RICE diseases & pests, ORGANIC acids, CHLOROGENIC acid
Abstract

Bacterial canker of Actinidia, caused by the bacterium Pseudomonas syringae pv. actinidiae (Psa), is the most serious disease of these plants worldwide. Leaves of three species of Actinidia, namely A. chinensis var. chinensis, A. chinensis var. deliciosa and A. arguta, having different degrees of tolerance to Psa, were analyzed by Nuclear Magnetic Resonance spectroscopy. Aqueous extracts of leaves were studied and several metabolites, classified as organic acids, amino acids, carbohydrates, phenols and other metabolites, were identified by 1D and 2D NMR experiments and quantified. The metabolic profiles of these species were compared through univariate statistical analysis ANOVA and multivariate PCA. Levels of metabolites with known antibacterial activity, such as caffeic and chlorogenic acids, were observed to be higher in the A. arguta samples. Moreover, these metabolites have different Pearson correlation patterns among the three Actinidia species, suggesting a difference at the phenylpropanoid biosynthetic pathway. [ABSTRACT FROM AUTHOR]

Published
2020
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6. Draft Whole Genome Sequence Analyses on Pseudomonas syringae pv. actinidiae Hypersensitive Response Negative Strains Detected from Kiwifruit Bleeding Sap Samples

Author

Biondi, Enrico, primary, Zamorano, Alan, additional, Vega, Ernesto, additional, Ardizzi, Stefano, additional, Sitta, Davide, additional, De Salvador, Flavio Roberto, additional, Campos-Vargas, Reinaldo, additional, Meneses, Claudio, additional, Perez, Set, additional, Bertaccini, Assunta, additional, and Fiore, Nicola, additional

Published
2018
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9. Scegliere la varietà giusta di lampone, mirtillo e rovo

Author

Bounous, Giancarlo, Beccaro, GABRIELE LORIS, Canterino, Sara, Eccher, Tommaso, Granelli, Giuseppe, Ughini, Virginia, De Salvador Flavio Roberto, and Folini, Luca

Subjects
Rubus spp, Vaccinium corymbosum, diversificazione colturale
Published
2009

15. NMR methodologies in the analysis of blueberries.

Author

Capitani D, Sobolev AP, Delfini M, Vista S, Antiochia R, Proietti N, Bubici S, Ferrante G, Carradori S, De Salvador FR, and Mannina L

Subjects
Amino Acids analysis, Carbohydrates analysis, Lipids analysis, Metabolome, Anthocyanins analysis, Blueberry Plants chemistry, Fruit chemistry, Magnetic Resonance Spectroscopy methods, Phenols analysis, Plant Extracts chemistry
Abstract

An NMR analytical protocol based on complementary high and low field measurements is proposed for blueberry characterization. Untargeted NMR metabolite profiling of blueberries aqueous and organic extracts as well as targeted NMR analysis focused on anthocyanins and other phenols are reported. Bligh-Dyer and microwave-assisted extractions were carried out and compared showing a better recovery of lipidic fraction in the case of microwave procedure. Water-soluble metabolites belonging to different classes such as sugars, amino acids, organic acids, and phenolic compounds, as well as metabolites soluble in organic solvent such as triglycerides, sterols, and fatty acids, were identified. Five anthocyanins (malvidin-3-glucoside, malvidin-3-galactoside, delphinidin-3-glucoside, delphinidin-3-galactoside, and petunidin-3-glucoside) and 3-O-α-l-rhamnopyranosyl quercetin were identified in solid phase extract. The water status of fresh and withered blueberries was monitored by portable NMR and fast-field cycling NMR. (1) H depth profiles, T2 transverse relaxation times and dispersion profiles were found to be sensitive to the withering., (© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Published
2014
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