Lipopolysaccharides in Rhizobium

Reitz M., Rudolph K., Schroder I., Hoffmann-Hergarten S., Hallmann J., Sikora R.A. Lipopolysaccharides of Rhizobium etli strain G12 act in potato roots as an inducing agent of systemic resistance to infection by the cyst nematode Globoderapallida. Appl Environ Microbiol 2000 66(8) 3515-3518. 

Gudlavalleti, S.K., Forsberg, L.S. Structural Characterization of the lipid A component of Sinorhizobium sp. NGR234 rough and smooth form lipopolysaccharide. Demonstration that the distal amide-linked acyloxyacylresidue containing the long chain fatty acid is conserved in Rhizobium and Sinorhizobium sp.. J Biol Chem 278 (2003) 3957-3968. 

Kanjilal-Kolar, S., Raetz, C.R.H. Dodecaprenyl phosphate-galacturonic acid as a donor substrate for lipopolysaccharide core glycosylation in Rhizobium leguminosarum. J Biol Chem 281... 

Kannenberg, E.L., Rathbun, E.A., Brewin, N.J. Molecular dissection of structure and function in the lipopolysaccharide of Rhizobium leguminosarum strain 3841 using monoclonal antibodies and genetic analysis. Mol Microbiol 6(17) (1992) 2477-2487. 

Further evidence has supported the theory that the interaction between lectins of host plants and Rhizobium is the key to the mechanism of host specificity in Rhizobium-legame symbiosis and that the lectin receptor of Rhizobial cells exists in the cell surface lipopolysaccharide. No evidence was obtained to show interaction of extracellular polysaccharides with the lectins. It is possible that a specific recognition system may involve the specific binding of, for instance, pea (Pisum sativum) root hairs to an antigen that is situated on the lipopolysaccharide of infective strains of R. leguminosarum... 

Further evidence has substantiated the theory that the interaction between lectins of host plants and Rhizobium species is the key to the mechanism of host-specificity in Rhizobium-legnme symbiosis and that the lectin receptors of the bacterial cells exist in the cell-surface lipopolysaccharides. ... 

Carlson, R.W., Kalembasa, S., Turowski, D., Pachori, P., Noel, K.D. Characterization of the lipopolysaccharide from a Rhizobium phaseoli mutant that is defective in infection thread development. J Bacteriol 169 (1987) 4923 1928. 

Vanderlinde, E.M., Muszynski, A., Harrison, J.J., Koval, S.F., Foreman, D.L., Ceri, H., Kannenberg, E.L., Carlson, R.W., Yost, C.K. Rhizobium leguminosarum biovar viciae 3841, deficient in 27-hydroxyoctacosanoate-modified lipopolysaccharide, is impaired in desiccation tolerance, biofilm formation and motility. Microbiology 155 (2009) 3055-3069. 

Deoxy-L-talose is also present in the glycan moiety of lipopolysaccharides (LPS) of several bacteria. For example, 38 was recently characterized in the trisaccharide repeating unit of the lipopolysaccharides isolated from Rhizobium legumi-nosarum, in which it was attached as a side chain, a-(l->2)-linked to rhamnosyl residues.179... 

Over the past 5 years, diverse lines of evidence have converged to suggest the presence of a mammalian-type NOS in plants. Evidence for the presence of NOS activity was first described in the leguminous plant Lupinus Albus [187]. A L-arginine-dependent L-citrulline production, possibly induced by Rhizobium lipopolysaccharides, was measured in roots and nodules using the [14C]arginine/citrulline procedure. L-citrulline production was inhibited by the mammalian NOS antagonist N(G)-... 

In addition to a high molecular weight lipopolysaccharide, the cell surface of Rhizobium contains a low molecular weight (1 2)-/3-D-glucan. Curie point... 

The following 0-methylaldoses have been isolated from, or identified as constituents of, natural products 3-0-methylxylose (in the extracellular mucilage from the red alga Rhodella maculata), 3-0-methyl-L-xylose (together with L-xylose and L-rhamnose from the lipopolysaccharide of Pseudomonas maltophilia), 3-0-methy]-D-ribose (from the extracellular polysaccharide of a Cowpea strain of slow-growing Rhizobium, strain CB 756), 2-0-methyl- and 2,4-di-O-methyl-L-rhamnose (in the antibiotics steffimycin and steffimycin B produced by Strepto-myces steffisburgensis), and 3-0-methyl-galactose and -mannose (from the haemocyanin of snails). ... 

Cell walls and lipopolysaccharide preparations of Rhizobium trifolii have been studied as receptors in order to find the site of attachment of bacteriophage IP 102 Destruction of the L- /ycero-D-wanw-heptose residues of the lipopolysaccharide was accompanied by inactivation of the bacteriophage. 

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