Homoserine catabolism by Rhizobium leguminosarum bv. viciae 3841 requires a plasmid-borne gene cluster that also affects competitiveness for nodulation.

Abstract excerpt

Homoserine represents a substantial component of pea root exudate that may be important for plant-microbe interactions in the rhizosphere. We identified a gene cluster on plasmid pRL8JI that is required for homoserine utilization by Rhizobium leguminosarum bv. viciae. The genes are arranged as two divergently expressed predicted operons that were induced by L-homoserine, pea root exudate, and were expressed on...

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