Results 141 to 150 of about 15,011 (174)

Rhizobium leguminosarum cytochromes (Vicia faba)

Plant and Soil, 1973
1. By difference spectrophotometry the cytochrome pattern of two strains of Rhizobium leguminosarum — effective and partly-effective — was studied in pure culture and in bacteroids isolated from legume root nodules1. 2. In pure culture both strains contained cytochromes c, b and a-a3 as well as cytochrome a2 which appeared under semi ...
W. L. Kretovich, V. I. Romanov, A. V. Korolyov   +2 more
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Anthranilate-promoted iron uptake in Rhizobium leguminosarum

Archives of Biochemistry and Biophysics, 1986
Anthranilate promoted the uptake of ferric iron into iron-starved cells of Rhizobium leguminosarum GF160. The uptake system was a saturable function of the concentration of ferric anthranilate. It was characterized by an apparent Km of 6 microM and a Vmax of 1.6 nmol/min/mg cell protein.
C R, Rioux, D C, Jordan, J B, Rattray
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Bacteriocins of Rhizobium Leguminosarum

1999
Antirhizobial compounds such as bacteriocins, inhibitory agents which limit the growth of closely related strains, may play a role in interstrain competition in the field. Some strains produce larger molecular weight molecules referred to here as rhizobiocins (medium bacteriocins) which have remained uncharacterized. The rhizobiocin determinants from R.
Sunny Twelker, Ivan J. Oresnik, Michael F. Hynes   +2 more
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Gluconeogenesis in Rhizobium leguminosarum MNF3841

Microbiology, 1985
Summary: Gluconeogenesis in Rhizobium leguminosarum MNF3841 takes place via the derepressible enzymes phosphoenolpyruvate carboxykinase (PEPCK) and fructose bisphosphate aldolase. A Tn5-induced PEPCK deficient mutant (MNF3085) fails to grow on a wide range of simple carbon sources.
McKay, I.A., Glenn, A.R., Dilworth, M.J.
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Phenotype of a Rhizobium leguminosarum ntrC mutant

Research in Microbiology, 1992
A Tn5 insertion mutant, strain CFN2012, of Rhizobium leguminosarum biovar phaseoli devoid of glutamine synthetase II (GSII) activity was analysed. It was shown to contain Tn5 within an 11-kb BamHI DNA fragment, which was isolated (pSM261) from the wild-type strain and, when introduced into strain CFN2012, was shown to complement the absence of GSII ...
Moreno S, Patriarca E, Chiurazzi M, Meza R, Defez R, Lamberti A, Riccio A, Iaccarino M, Espin G   +8 more
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Virulent bacteriophage infection of Rhizobium leguminosarum

Canadian Journal of Microbiology, 1972
Bacteriophage 317, which virulently infects Rhizobium leguminosarum, has an eclipse period of 60–70 min and a latent period of 100 min at 30°. Electron micrographs of the phage indicated head, tail, and tail-fiber structural components.Base analysis of phage 317 deoxyribonucleic acid (DNA) indicated the presence of equimolar amounts of adenine and ...
A N, Ley, H R, Warner, P L, Kahn
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Glutamine Synthetases of Rhizobium Leguminosarum

1987
Rhizobium bacteria use ammonia for growth in the free-living state, but in the nitrogen fixing bacteroids all ammonia is exported to the plant fraction of the nodule (Bergersen and Turner, 1967). Thus the enzymes for ammonia assimilation need to be regulated differently in the two bacterial states. Another peculiarity of Rhizobiaceae is the presence of
S. Colonna-Romano, R. Defez, M. Filser, M. Guida, M. Iaccarino, A. Lamberti, A. Riccio, A. Fuggi, W. Arnold, U. Priefer, A. Pühler   +10 more
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Expression and purification of Rhizobium leguminosarum NodD

Protein Expression and Purification, 2002
A Rhizobium expression system was constructed via introducing strong transcriptional elements to an IncP broad host range plasmid pKT230. Using this system, the nodD gene of Rhizobium leguminosarum biovar viciae was overexpressed in its own in vivo environment. Western blot showed that the NodD yield of the newly constructed expression vector pKNDT was
Jie, Feng, Feng, Qing Li, Qiang, Li, Hai, Liang Hu, Guo, Fan Hong   +4 more
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Detection of uptake hydrogenase in Rhizobium leguminosarum and Rhizobium meliloti

Zentralblatt für Mikrobiologie, 1988
Summary A rapid colour test is described which is selective for uptake hydrogenase (Hup+) activity under ex planta conditions. The test is based on decolonization of methylene blue. The decolonization time is a function of Hup activity. It is possible to select single colonies showing different Hup activities. A known Hup+ strain of R.
Peter Lentzsch, Gerhard Miksch
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The Nodulation Genes of Rhizobium Leguminosarum

1984
The host specific nodulation of peas, Vicia, Lens and Lathyrus is encoded by a series of genes present upon the “symbiotic” plasmids of Rhizobium leguminosarum. These genes are clustered within a relatively short region of DNA which was cloned upon the overlapping region of two cosmid clones called pIJ1085 and pIJ1089 (Downie et al. 1983).
J. A. Downie, Q-S. Ma, B. Wells, C. D. Knight, G. Hombrecher, A. W. B. Johnston   +5 more
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