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Open AccessArticle

Nutrients’ and Antinutrients’ Seed Content in Common Bean (Phaseolus vulgaris L.) Lines Carrying Mutations Affecting Seed Composition

1
Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
2
Council for Agricultural Research and Economics (CREA), Research Centre for Animal Production and Aquaculture (CREA-ZA), Viale Piacenza 29, 26900 Lodi, Italy
3
Council for Agricultural Research and Economics (CREA), Research Centre for Vegetable and Ornamental Crops (CREA-OF), Via Cavalleggeri 25, 84098 Pontecagnano-Faiano (Salerno), Italy
4
Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
5
Institute of Agricultural Biology and Biotechnology, National Research Council, CNR, Via Bassini 15, 20133 Milano, Italy
6
Arcoiris Srl-Organic and Biodynamic seeds, Via Labriola 18/A-D, 41123 Modena, Italy
7
Council for Agricultural Research and Economics (CREA), Research Centre for Genomics & Bioinformatics (CREA-GB), Via Paullese 28, 26836 Montanaso Lombardo (Lodi), Italy
*
Author to whom correspondence should be addressed.
Agronomy 2019, 9(6), 317; https://doi.org/10.3390/agronomy9060317
Received: 24 April 2019 / Revised: 7 June 2019 / Accepted: 11 June 2019 / Published: 16 June 2019
(This article belongs to the Special Issue Biofortification of Crops)
Lectins, phytic acid and condensed tannins exert major antinutritional effects in common bean when grains are consumed as a staple food. In addition, phaseolin, i.e., the major storage protein of the bean seed, is marginally digested when introduced in the raw form. Our breeding target was to adjust the nutrient/antinutrient balance of the bean seed for obtaining a plant food with improved nutritional value for human consumption. In this study, the seeds of twelve phytohaemagglutinin-E-free bean lines carrying the mutations low phytic acid, phytohaemagglutinin-L-free, α-Amylase inhibitors-free, phaseolin-free, and reduced amount of condensed tannins, introgressed and differently combined in seven genetic groups, were analyzed for their nutrient composition. Inedited characteristics, such as a strong positive correlation (+0.839 **) between the genetic combination “Absence of phaseolin + Presence of the α-Amylase Inhibitors” and the amount of “accumulated iron and zinc”, were detected. Three lines carrying this genetic combination showed a much higher iron content than the baseline (+22.4%) and one of them in particular, achieved high level (+29.1%; 91.37 µg g−1) without any specific breeding intervention. If confirmed by scientific verification, the association of these genetic traits might be usefully exploited for raising iron and zinc seed content in a bean biofortification breeding program. View Full-Text
Keywords: iron; zinc; biofortification; methionine; phaseolin; lectins; cellulose; phytic acid; saponins; condensed tannins iron; zinc; biofortification; methionine; phaseolin; lectins; cellulose; phytic acid; saponins; condensed tannins
MDPI and ACS Style

Giuberti, G.; Tava, A.; Mennella, G.; Pecetti, L.; Masoero, F.; Sparvoli, F.; Lo Fiego, A.; Campion, B. Nutrients’ and Antinutrients’ Seed Content in Common Bean (Phaseolus vulgaris L.) Lines Carrying Mutations Affecting Seed Composition. Agronomy 2019, 9, 317.

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