Results 191 to 200 of about 29,737 (242)

Rhizobium–plant signal exchange

Nature, 1992
Initial stages in the Rhizobium-legume symbiosis can be thought of as a reciprocal molecular conversation: transmission of a gene inducer from legume host to bacterium, with ensuing bacterial synthesis of a morphogen that is transmitted to the plant, switching the developmental fate of the legume root.
R F, Fisher, S R, Long
exaly   +3 more sources

Plasmid deoxyribonucleic acid in Rhizobium vigna and Rhizobium trifolii

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1975
Abstract Cesium chloride-ethidium bromide density gradient centrifugation and sedimentation velocity studies show the presence of plasmid DNA in several strains of Rhizobium.
G, Tshitenge, N, Luyindula, P F, Lurquin, L, Ledoux   +3 more
openaire   +2 more sources

Gel-forming capsular polysaccharide of Rhizobium leguminosarum and Rhizobium trifolii

Carbohydrate Research, 1983
Extraction 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., van Neerven, A.R.W.   +1 more
openaire   +2 more sources

Quorum-sensing in Rhizobium

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.
openaire   +3 more sources

Denitrification in Rhizobium

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
openaire   +2 more sources

Interspecific transformation in Rhizobium

Archiv f�r Mikrobiologie, 1967
Two 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, L, Mazumdar, V V, Modi, V, Parekh   +3 more
openaire   +2 more sources

LYSOGENY IN RHIZOBIUM TRIFOLII

Canadian Journal of Microbiology, 1961
A 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
openaire   +2 more sources

Discrimination of Rhizobium japonicum, Rhizobium lupini, Rhizobium trifolii, Rhizobium leguminosarum and of bacteriods by uptake of 2-ketoglutaric acid, glutamic acid and phosphate

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
openaire   +2 more sources