Results 241 to 250 of about 45,377 (291)
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Lipopolysaccharides of Rhizobium
Archives of Microbiology, 1980Hot phenol-water extractions were carried out of cells from 12 strains of the fast-growing rhizobia Rhizobium leguminosarum, Rhizobium phaseoli, Rhizobium trifolii and Rhizobium meliloti. Purified lipopolysaccharide preparations contain neutral sugars, hexosamines, 2-keto-3-deoxyoctonate and uronic acids.
L P T M Zevenhuizen, Zevenhuizen L P T M
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Plasmid deoxyribonucleic acid in Rhizobium vigna and Rhizobium trifolii
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1975Abstract Cesium chloride-ethidium bromide density gradient centrifugation and sedimentation velocity studies show the presence of plasmid DNA in several strains of Rhizobium.
G, Tshitenge +3 more
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Gel-forming capsular polysaccharide of Rhizobium leguminosarum and Rhizobium trifolii
Carbohydrate Research, 1983Extraction of cell pellets of several R. leguminosarum and R. trifolii strains with M NaOH at room temperature released an anthrone-positive material which, on neutralisation of the extract, precipitated as a gel. The polysaccharide could also be extracted with hot water.
Zevenhuizen, L.P.T.M. +1 more
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Antonie van Leeuwenhoek, 2002
Quorum-sensing signals are found in many species of legume-nodulating rhizobia. In a well-characterized strain of R. leguminosarum biovar viciae, a variety of autoinducers are synthesised, and all have been identified as N-acyl-homoserine lactones.
Wisniewski-Dyé, Florence, Downie, J. A.
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Quorum-sensing signals are found in many species of legume-nodulating rhizobia. In a well-characterized strain of R. leguminosarum biovar viciae, a variety of autoinducers are synthesised, and all have been identified as N-acyl-homoserine lactones.
Wisniewski-Dyé, Florence, Downie, J. A.
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Interspecific transformation in Rhizobium
Archiv f�r Mikrobiologie, 1967Two characters, “Penicillin resistance” and “fructose utilizing ability”, were transferred in the recipient Rhizobium cowpea (source—Ground nut roots) with the help of the DNA extracted from Rhizobium phaseoli culture (source—French bean roots). The recipient culture enters the logarithmic growth phase at the end of 60 min.
S V, Gadre +3 more
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Canadian Journal of Microbiology, 1978
Thirty-three strains of Rhizobium were examined for their reduction of nitrate under anoxic conditions. Three patterns of dissimilatory nitrate reduction were observed: (1) reduction to N2O and N2 (denitrification), (2) reduction to and subsequent accumulation of NO2− (nitrate respiration), (3) no reduction. Strains of R.
R M, Zablotowicz, D L, Eskew, D D, Focht
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Thirty-three strains of Rhizobium were examined for their reduction of nitrate under anoxic conditions. Three patterns of dissimilatory nitrate reduction were observed: (1) reduction to N2O and N2 (denitrification), (2) reduction to and subsequent accumulation of NO2− (nitrate respiration), (3) no reduction. Strains of R.
R M, Zablotowicz, D L, Eskew, D D, Focht
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LYSOGENY IN RHIZOBIUM TRIFOLII
Canadian Journal of Microbiology, 1961A phage-like particle (phage i) found in filtrates of Rhizobium trifolii (strain RT 9) did not produce plaques but induced development of two different phages in a presumed defective lysogenic strain (RT 10). These induced phages (phages 9 and 10) differed in their host ranges and produced plaques on strains RT 9 and RT 10, respectively.
I, TAKAHASHI, C, QUADLING
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Archives of Microbiology, 1976
Rhizobium strains (one each of Rh. japonicum, Rh. lupini, Rh. leguminosarum) take up 2-ketoglutaric acid in general much faster and from lower concentrations in the medium than strains of Escherichia coli, Bacillus subtilis and Chromobacterium violaceum. A strain of Enterobacter aerogenes, however, is more similar to some Rhizobium strains.
D, Werner, K, Berghäuser
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Rhizobium strains (one each of Rh. japonicum, Rh. lupini, Rh. leguminosarum) take up 2-ketoglutaric acid in general much faster and from lower concentrations in the medium than strains of Escherichia coli, Bacillus subtilis and Chromobacterium violaceum. A strain of Enterobacter aerogenes, however, is more similar to some Rhizobium strains.
D, Werner, K, Berghäuser
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Detection of uptake hydrogenase in Rhizobium leguminosarum and Rhizobium meliloti
Zentralblatt für Mikrobiologie, 1988Summary 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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Archiv f�r Mikrobiologie, 1968
Seven of eight Rhizobium strains survived 70° C but not 80° C for half an hour in liquid media. The proportion of cells surviving heat treatment varied with the composition of the media and the age of the cultures, but did never exceed 0.7%. It appears that this heat resistance is not an effect of sporulation, according to the classical definition of a
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Seven of eight Rhizobium strains survived 70° C but not 80° C for half an hour in liquid media. The proportion of cells surviving heat treatment varied with the composition of the media and the age of the cultures, but did never exceed 0.7%. It appears that this heat resistance is not an effect of sporulation, according to the classical definition of a
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