The biodegradation by Rhizobium huakuii PMY1 of up to 10 mM phasphonom
ycin as a carbon, energy, and phosphorus source with accompanying P-1
release is described. This biodegradation represents a further mechani
sm of resistance to this antibiotic and a novel, phosphate-deregulated
route for organophosphonate metabolism by Rhizobium spp.