2.1.1.154 additional information the enzyme specifically involved in the biosynthesis of an inducer of Rhizobium meliloti nodulation genes Medicago sativa ? - ? 89 2.1.1.154 additional information no activity towards naringenin chalcone, caffeic acid or daidzein Medicago sativa ? - ? 89 2.1.1.154 S-adenosyl-L-methionine + 2',4'-dihydroxy-4-methoxychalcone 77% of the activity with isoliquiritigenin Medicago sativa S-adenosyl-L-homocysteine + 4'-hydroxy-2',4-dimethoxychalcone - ? 374590 2.1.1.154 S-adenosyl-L-methionine + 4',7-dihydroxyflavanone 32% of the activity with isoliquiritigenin Medicago sativa S-adenosyl-L-homocysteine + ? - ? 374591 2.1.1.154 S-adenosyl-L-methionine + isoliquiritigenin - Medicago sativa S-adenosyl-L-homocysteine + 2'-O-methylisoliquiritigenin - ? 319783 2.1.1.154 S-adenosyl-L-methionine + isoliquiritigenin the product of the reaction, 2'-O-methylisoliquiritigenin, is the most potent inducer of nodulation genes of Rhizobium meliloti, the symbiont of Medicago sativa which forms nitrogen-fixing nodules Medicago sativa S-adenosyl-L-homocysteine + 2'-O-methylisoliquiritigenin - ? 319783