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Updated: Jul 14, 2026

Plant Promoter Analysis: Identification and Characterization of Root Nodule Specific Promoter in the Common Bean
Published on: December 23, 2017
Distinct, crucial roles of flavonoids during legume nodulation
Senthil Subramanian1, Gary Stacey, Oliver Yu
1Donald Danforth Plant Science Center, 975 North Warson Road, Saint Louis, MO 63132, USA.
Abstract:
RNA interference-mediated silencing of the key flavonoid and isoflavone biosynthesis enzyme, respectively, by two different research groups has provided direct genetic evidence for the essential roles that these compounds play in nodulation. Anton Wasson et al. have shown that flavonoids are essential for localized auxin transport inhibition during nodulation in the indeterminate legume Medicago truncatula. By contrast, Senthil Subramanian et al. have shown that isoflavones are essential for endogenous nod gene induction in the determinate legume soybean.
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