Sinorhizobium fredii HH103 cgs mutants are unable to nodulate determinate- and indeterminate nodule-forming legumes and overproduce an altered EPS.

doi:10.1094/MPMI-22-5-0575

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Sinorhizobium fredii HH103 cgs mutants are unable to nodulate determinate- and indeterminate nodule-forming legumes and overproduce an altered EPS.

Molecular plant-microbe interactions : MPMI - 1 May 2009

Crespo-Rivas Juan C, Margaret Isabel, Hidalgo Angeles, Buendía-Clavería Ana M, Ollero Francisco J, López-Baena Francisco J, del Socorro Murdoch Piedad, Rodríguez-Carvajal Miguel A, Soria-Díaz M Eugenia, Reguera María, Lloret Javier, Sumpton David P, Mosely Jackie A, Thomas-Oates Jane E, van Brussel Anton A N, Gil-Serrano Antonio, Vinardell Jose M, Ruiz-Sainz Jose E

Abstract excerpt

Sinorhizobium fredii HH103 produces cyclic beta glucans (CG) composed of 18 to 24 glucose residues without or with 1-phosphoglycerol as the only substituent. The S. fredii HH103-Rifr cgs gene (formerly known as ndvB) was sequenced and mutated with the lacZ-gentamicin resistance cassette. Mutant SVQ562 did not produce CG, was immobile, and grew more slowly in the hypoosmotic GYM medium, but its survival in...

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PMID: 19348575
DOI: 10.1094/MPMI-22-5-0575

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Sinorhizobium fredii HH103 cgs mutants are unable to nodulate determinate- and indeterminate nodule-forming legumes and overproduce an altered EPS.PMID 19348575Read ↗

Sinorhizobium fredii HH103 does not strictly require KPS and/or EPS to nodulate Glycyrrhiza uralensis, an indeterminate nodule-forming legume.Semantic proximity Read ↗

Exopolysaccharide is detrimental for the symbiotic performance of Sinorhizobium fredii HH103 mutants with a truncated lipopolysaccharide core.Semantic proximity Read ↗

The rkpU gene of Sinorhizobium fredii HH103 is required for bacterial K-antigen polysaccharide production and for efficient nodulation with soybean but not with cowpea.Semantic proximity Read ↗

Structure and biological roles of Sinorhizobium fredii HH103 exopolysaccharide.Semantic proximity Read ↗

Mutation in GDP-fucose synthesis genes of Sinorhizobium fredii alters Nod factors and significantly decreases competitiveness to nodulate soybeans.Semantic proximity Read ↗

Sinorhizobium fredii HH103 mutants affected in capsular polysaccharide (KPS) are impaired for nodulation with soybean and Cajanus cajan.Semantic proximity Read ↗

A pyrF auxotrophic mutant of Sinorhizobium fredii HH103 impaired in its symbiotic interactions with soybean and other legumes.Semantic proximity Read ↗

The Sinorhizobium fredii HH103 lipopolysaccharide is not only relevant at early soybean nodulation stages but also for symbiosome stability in mature nodules.Semantic proximity Read ↗

Cyclic-β-glucans of Rhizobium (Sinorhizobium) sp. strain NGR234 are required for hypo-osmotic adaptation, motility, and efficient symbiosis with host plants.Semantic proximity Read ↗

A purL mutant of Sinorhizobium fredii HH103 is symbiotically defective and altered in its lipopolysaccharide.Semantic proximity Read ↗

Extracellular proteins involved in soybean cultivar-specific nodulation are associated with pilus-like surface appendages and exported by a type III protein secretion system in Sinorhizobium fredii USDA257.Semantic proximity Read ↗

Inactivation of the Sinorhizobium fredii HH103 rhcJ gene abolishes nodulation outer proteins (Nops) secretion and decreases the symbiotic capacity with soybean.Semantic proximity Read ↗

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