Abstract
Glyceollins synthesized in soybeans that are exposed to biotic or abiotic stress have been reported to have health benefits. Considering that glyceollins are de novo synthesized from daidzein via several enzymatic steps and that isoflavone concentration widely varies among soybean varieties, the abilities of 60 soybean cultivars to synthesize glyceollins were compared under different elicitation conditions. Soybeans accumulated glyceollins differentially depending upon the cultivar when elicited with Aspergillus sojae. Contrary to our hypothesis that high isoflavone varieties may accumulate glyceollins more efficiently upon elicitation, glyceollin accumulation in response to fungal elicitation was not related with the concentration of either total isoflavones or daidzein in soybeans. Rather the glyceollin levels were significantly affected by soybean cultivar and most effectively increased by fungal infection. The data suggest that the selection of a strong fungal elicitor and a soybean cultivar with genotype that highly expresses the genes involved in glyceollin biosynthesis is essential for efficient glyceollin production.
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Park, I.S., Kim, H.J., Jeong, YS. et al. Differential abilities of Korean soybean varieties to biosynthesize glyceollins by biotic and abiotic elicitors. Food Sci Biotechnol 26, 255–261 (2017). https://doi.org/10.1007/s10068-017-0034-1
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DOI: https://doi.org/10.1007/s10068-017-0034-1