Rhizobium meliloti

Mutant YE-2 of Rhizobium meliloti excretes a mixture of soluble polysaccharides that include a complex succinoglycan having a branched octasaccharide repeat as well as a simple galactoglucan (22) having a linear disaccharide repeat.102 In contrast to the case of the succinoglycan, oriented fibers of the potassium salt of 22 have yielded good X-ray data and its three-dimensional structure has been established.39 The polymer forms a two-fold helix of pitch... [Pg.362]

The capsular polysaccharide from Rhizobium meliloti IFO 13336 contains terminal ct-D-ribofuranosyluronic groups (19). With this obvious exception, all known glycuronic acids in bacterial polysaccharides are py-ranosidic. [Pg.293]

N. K. Peters, J. W. Frost, and S. R. Long, A plant tlavone, luteolin induces expression of Rhizobium meliloti nodulalion genes. Science 233 977 (1986). [Pg.15]

A. Hartmann, J. J. Giraud, and G. Catroux, Genotypic diversity of Sinorhizobinm (formerly Rhizobium) meliloti strains i.solated directly from a soil and from nodules of alfalfa (Medicago sativa) grown in the same. soil. FEMS Microbiol. Ecol. 25 107-116 (1998). [Pg.324]

E. S. P. Bromfield, L. R. Barran, and R. Weathcroft, Relative genetic structure of a population of Rhizobium meliloti isolated directly from soil and from nodules of alfalfa (Medicago. sativa) and sweet clover (Melilotus alba). Mol. Ecol. 4 183-188 (1995). [Pg.324]

D. Paffetti, C. Scotti, S. Gnocchi, S. Fancelli, and M. Bazzicalupo, Genetic diversity of an italian Rhizobium meliloti population from different Medicago sativa varieties. Appl. Environ. Microbiol. 62 2279-2285 (1996). [Pg.326]

Jiang, J., Gu, B., Albright, L. M., and Nixon, B. T. (1989) Conservation between coding and regulatory elements of Rhizobium meliloti and Rhizobium leguminosarum dct genes. J. Bacteriol. 171, 5244-5253. [Pg.157]

Biological. Odeyemi and Alexander (1977) isolated three strains of Rhizobium sp. that degraded thiram. One of these strains, Rhizobium meliloti, metabolized thiram to dimethylamine (DMA) and carbon disulfide, which formed spontaneously from dimethyldithiocarbamate (DMDT). The conversion of DMDT to DMA and carbon disulfide occurred via enzymatic and nonenzymatic mechanisms. [Pg.1051]

Rhizobactin (40) is the siderophore of Rhizobium meliloti 328). It contains one ot-hydroxycarboxylic acid and two ot-amino acid units as probable binding sites for Fe ". Acid hydrolysis yields inter alia L-malic acid. The stereochemistry of the other two chiral centers is not known. [Pg.23]

Rhizobactin 1021 (Fig. 15, 56) (for rhizobactin, see diaminoalkane-based siderophores, Sect. 3.1) from Rhizobium meliloti (281), contains an acetyl and an ( )-decenoyl group. Its Fe " complex in aqueous solution is A-configured and forms an equilibrium between a monomeric and a dimeric form that can be separated by chromatography. A synthesis is described (404). [Pg.31]

Persmark M, Pittman P, Buyer JS, Schwyn B, Gill PR Jr, Neilands JB (1993) Isolation and Structure of Rhizobactin 1021, a Siderophore from the Alfalfa Symbiont Rhizobium meliloti 1021. J Am Chem Soc 115 3950... [Pg.69]

Smith MJ, Shoolery JN, Schwyn B, Holden I, Neilands JB (1985) Rhizobactin, a Structurally Novel Siderophore from Rhizobium meliloti. J Am Chem Soc 107 1739... [Pg.71]

Maxwell, C.A. et al., A chalcone and two related flavonoids released from alfalfa roots induce nod genes of Rhizobium meliloti. Plant Physiol., 91, 842, 1989. [Pg.211]

Maxwell, C.A. et al., Molecular characterization and expression of isoliquiritigenin 2 -0-methyltransferase, an enzyme specifically involved in the biosynthesis of an inducer of Rhizobium meliloti nodulation genes. Plant J., 4, 971, 1993. [Pg.211]

Medicago sativa and Rhizobium meliloti Trifolium spp. and Rhizobium. leguminosarum bv. Trifolii Phaseolus vulgaris and Rhizobium leguminosarum bv. Phaseoli Pisum sativum and Rhizobium leguminosarum bv. Viciae... [Pg.419]

Hartwig, U.A., Joseph, C.M., and Phillips, D.A., Flavonoids released naturally from alfalfa seeds enhance growth rate of Rhizobium meliloti, Plant Physiol, 95, 797, 1991. [Pg.437]

Peters, N.K., Frost, J.W., and Long, S.R., A plant flavone, luteolin, induces expression of Rhizobium meliloti nodulation genes, Science, 233, 917, 1986. [Pg.437]

Leon-Barrios, M. et al.. Isolation of Rhizobium meliloti nod gene inducers from alfalfa rhizosphere soil, Appl Environ. Microbiol, 59, 636, 1993. [Pg.438]

Jain, V. and Nainawatee, H.S., Flavonoids influence growth and saccharide metabolism of Rhizobium meliloti. Folia Microbiol, 44, 311, 1999. [Pg.438]

Caetano-Anolles, G., Christ-Estes, D.K., and Bauer, W.D., Chemotaxis of Rhizobium meliloti to the plant flavone luteolin requires functional nodulation genes, J. Bacteriol, 170, 3164, 1988. [Pg.438]

Tepfer, D., Goldmann, A., Pamboudikjan, N., Maille, M., Lepingle, A., Chevalier, D., Denarie, J., Rosenberg, C. (1988). A plasmid of Rhizobium meliloti 41 encodes catabolism of two compounds from the root exudate of Calystegia sepium. J. Bacterial., 170, 1153-1161. [Pg.161]

Falah M, Gupta RS (1994) Cloning of the hsp70 (dnaK) genes from Rhizobium meliloti and Pseudomonas cepacia phylogenetic analyses of mitochondrial origin based on a highly conserved protein sequence. J Bacteriol 176 7748-7753 Ferro M et al. (2003) Proteomics of the chloroplast envelope membranes from Arabidopsis thaliana. Mol Cell Proteomics 2 325-345... [Pg.65]

Lois, A.F. Ditta, G.S. Helinski, D.R. The oxygen sensor FixL of Rhizobium meliloti is a membrane protein containing four possible transmembrane segments. J. Bacteriol., 175, 1103-1109 (1993)... [Pg.461]

Engelke, T. Jording, D. Kapp, D. Puhler, A. Identification and sequence analysis of the Rhizobium meliloti dctA gene encoding the C4-dicarbox-ylate carrier. J. Bacteriol., 171, 5551-5560 (1989)... [Pg.461]

Watson, R.J. Analysis of the G4-dicarboxylate transport genes of Rhizobium meliloti nucleotide sequence and deduced products of dctA, dctB, and dctD. Mol. Plant Microbe Interact., 3, 174-181 (1990)... [Pg.462]

Anthamatten, D. Hennecke, H. The regulatory status of the fixL- and fixj-like genes in Bradyrhizobium japonicum may be different from that in Rhizobium meliloti. Mol. Gen. Genet., 225, 38-48 (1991)... [Pg.465]

Szeto, W.W. Nixon, B.T. Ronson, C.W. Ausubel, EM. Identification and characterization of the Rhizobium meliloti ntrC gene R. meliloti has separate regulatory pathways for activation of nitrogen fixation genes in free-living and symbiotic cells. J. BacterioL, 169, 1423-1432 (1987)... [Pg.472]

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