Biomaterial Database

Nitrogenase activity of Rhizobium sp. strains in pure culture in relation to extracellular polysaccharide composition and antigenic affinity. 1978

L D Kennedy, and C E Pankhurst

Five strains of slow-growing Rhizobium sp. (strains CB756, 32HI, CB562, CB627 and QA549) out of seventy examined developed appreciable nitrogenase activity in pure culture. CB756 and 32HI were serologically indistinguishable and each produced 6-deoxy-L-talose as a major component of its extracellular polysaccharide. They did not share these properties with CB562, CB627 or QA549.

UI	MeSH Term	Description	Entries
D009591	Nitrogenase	An enzyme system that catalyzes the fixing of nitrogen in soil bacteria and blue-green algae (CYANOBACTERIA). EC 1.18.6.1.	Dinitrogenase,Vanadium Nitrogenase,Nitrogenase, Vanadium
D011135	Polysaccharides, Bacterial	Polysaccharides found in bacteria and in capsules thereof.	Bacterial Polysaccharides
D003429	Cross Reactions	Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen.	Cross Reaction,Reaction, Cross,Reactions, Cross
D003837	Deoxy Sugars	Sugars that in which one or more hydroxyl groups of the pyranose or furanose ring is substituted by hydrogen.	Deoxy Sugar,Sugar, Deoxy,Sugars, Deoxy
D005779	Immunodiffusion	Technique involving the diffusion of antigen or antibody through a semisolid medium, usually agar or agarose gel, with the result being a precipitin reaction.	Gel Diffusion Tests,Diffusion Test, Gel,Diffusion Tests, Gel,Gel Diffusion Test,Immunodiffusions,Test, Gel Diffusion,Tests, Gel Diffusion
D000942	Antigens, Bacterial	Substances elaborated by bacteria that have antigenic activity.	Bacterial Antigen,Bacterial Antigens,Antigen, Bacterial
D012231	Rhizobium	A genus of gram-negative, aerobic, rod-shaped bacteria that activate PLANT ROOT NODULATION in leguminous plants. Members of this genus are nitrogen-fixing and common soil inhabitants.
D013045	Species Specificity	The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.	Species Specificities,Specificities, Species,Specificity, Species