Release and Modification of nod-Gene-Inducing Flavonoids from Alfalfa Seeds.

@article{Hartwig1991ReleaseAM,
  title={Release and Modification of nod-Gene-Inducing Flavonoids from Alfalfa Seeds.},
  author={Ueli A. Hartwig and D. A. Phillips},
  journal={Plant physiology},
  year={1991},
  volume={95 3},
  pages={804-7}
}
Traces of luteolin, an important rhizobial nod gene inducer in Rhizobium meliloti, are released by alfalfa (Medicago sativa L.) seeds, but most luteolin in the seed exudate is conjugated as luteolin-7-O-glucoside (L7G). Processes affecting the production of luteolin from L7G in seed exudate are poorly understood. Results from this study establish that (a) seed coats are the primary source of flavonoids, including L7G, in seed exudate; (b) these flavonoids exist in seeds before imbibition; and… CONTINUE READING