Common bean seeds from plants subjected to severe drought, restricted- and full-irrigation regimes show differential phytochemical fingerprint.

Mayra Denise Herrera, Jorge A Acosta-Gallegos, Rosalía Reynoso-Camacho, Iza F Pérez-Ramírez

Journal: Food chemistry 2019;294():368-377

PMID: 31126476

Full Text on Elsevier Science View on PubMed

Abstract

Common bean is rich in phytochemicals like polyphenols, saponins, and steroidal glycosides, but its crop is greatly affected by drought. Thus, it is necessary to identify the irrigation regimes that improves its phytochemical profile without affecting seed yield. The aim of this study was to evaluate the differential effect of severe drought (SD), restricted irrigation (RI), and full irrigation (FI) on the phytochemical fingerprint of bean seeds through liquid chromatography-mass spectrometry and chemometric approach. Partial least square-discriminant analysis (PLS-DA) indicated that seeds from plants grown under RI where differentiated from those grown under FI and SD due to their high content of quercetin 3-O-rhamnoside and luteolin 7-O-glucoside. Regarding seed yield, no significant (p < 0.05) differences were observed between RI and FI, whereas SD decreased (p < 0.05) seed yield as compared to FI (47%). These results suggest that mild hydric stress (RI) can be used to induce phytochemicals without affecting seed yield.

Address: Research and Graduate Studies in Food Science, School of Chemistry, Universidad Autónoma de Querétaro, C.U., Cerro de las campanas S/N, Queretaro, Queretaro 76010, Mexico; Campo experimental Zacatecas (CEZAC-INIFAP), Km 24.5 Carretera Zacatecas-Fresnillo, Calera de VR, Zacatecas 98500, Mexico.; Campo experimental Bajío (CEBAJ-INIFAP), Km 6 Carretera Celaya-San Miguel de Allende, 38010 Celaya, Mexico.; Research and Graduate Studies in Food Science, School of Chemistry, Universidad Autónoma de Querétaro, C.U., Cerro de las campanas S/N, Queretaro, Queretaro 76010, Mexico.; Research and Graduate Studies in Food Science, School of Chemistry, Universidad Autónoma de Querétaro, C.U., Cerro de las campanas S/N, Queretaro, Queretaro 76010, Mexico. Electronic address: [email protected].

DOI: 10.1016/j.foodchem.2019.05.076

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MeSH Terms: Cluster Analysis, Discriminant Analysis, Droughts, Least-Squares Analysis, Phaseolus, Phytochemicals, Seeds