Polyphenol metabolism provides a screening tool for beneficial effects of Onobrychis viciifolia (sainfoin) |
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| Affiliation: | 1. Department of Nutritional Sciences, The University of Arizona, Tucson, AZ, USA;2. College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA;3. The University of Arizona Cancer Center, Tucson, AZ, USA;4. Division of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, USA;5. Department of Cellular and Molecular Medicine, College of Medicine, University of Arizona, Tucson, AZ, USA;1. School of Life Sciences & Biotechnology, Korea University, Seoul, Republic of Korea;2. Lifetree Biotechnology Institute, Lifetree Biotech Co. Ltd, Gyeonggi-do, Republic of Korea;3. The College of Pharmacy, Hanyang University, Ansan, Gyeonggi-do, Republic of Korea |
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| Abstract: | Onobrychis viciifolia (sainfoin) is a traditional fodder legume showing multiple benefits for the environment, animal health and productivity but weaker agronomic performance in comparison to other legumes. Benefits can be mainly ascribed to the presence of polyphenols. The polyphenol metabolism in O. viciifolia was studied at the level of gene expression, enzyme activity, polyphenol accumulation and antioxidant activity. A screening of 37 accessions regarding each of these characters showed a huge variability between individual samples. Principal component analysis revealed that flavonols and flavan 3-ols are the most relevant variables for discrimination of the accessions. The determination of the activities of dihydroflavonol 4-reductase and flavonol synthase provides a suitable screening tool for the estimation of the ratio of flavonols to flavan 3-ols and can be used for the selection of samples from those varieties that have a specific optimal ratio of these compounds for further breeding. |
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