Rb. Mellor et L. Rosendahl, A SOYBEAN PERIBACTEROID SPACE COMPONENT, RIBOFLAVIN, REPRESSES DAIDZEIN-INDUCED COMMON NOD-GENE EXPRESSION IN BRADYRHIZOBIUM-JAPONICUM, Journal of plant physiology, 144(1), 1994, pp. 34-37
The nodulation of soya (Glycine max) roots could be severely inhibited
by treating the symbiotic bacteria (Bradyrhizobium japonicum) with no
dule-derived peribacteroid space fractions. Riboflavin, a prominent pe
ribacteroid space component, could mimic this effect. Daidzein-stimula
ted beta-galactosidase expression, associated with a plasmid (pRJ458)
bearing a B. japonicum nodD2D1YABC'-'lacZ construct in a B. japonicum
background, was repressed in the presence of both peribacteroid space
fractions and riboflavin.