Canadian Medical Guide > Organisms > Bacteria > Gram-Negative Bacteria > Gram-Negative Aerobic Bacteria > Gram-Negative Aerobic Rods and Cocci > Rhizobiaceae Terms and Definitions

Rhizobiaceae

Medical Definition:	A family of gram-negative bacteria which are saprophytes, symbionts, or plant pathogens.
Guide Notes:	in soil, water & plants
Previously Indexed:	Bacteria (1966-1974)

Rhizobiaceae Categories.

	Rhizobium - A genus of gram-negative, aerobic, rod-shaped bacteria that produce nodules on the roots of leguminous plants. Members of this genus are common soil inhabitants.
	Sinorhizobium - A genus of gram-negative, aerobic, nonsporeforming rods which usually contain granules of poly-beta-hydroxybutyrate. (From Bergey's Manual of Determinative Bacteriology, 9th ed)

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