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Sensitivity of Rhizobia to vanillin
Folia Microbiologica, 1974The sensitivity of Rhizobia isolated from pea, fenugreek, gram, cowpea, urid andRhizobium meliloti, Rhizobium trifolii andRhizobium japonicum was studied in asparagine-mannitol, salt-mannitol and salt media. It was observed that Rhizobia from gram were most resistant.Rhizobium japonicum was found to be resistant up to 50 mg vanillin/100 ml.
K G, Gupta, J C, Aggarwal, N S, Makkar
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Characterization of rhizobia fromLeucaena
World Journal of Microbiology & Biotechnology, 1992Seventy-six rhizobia were isolated from the nodules ofLeucaena plants of various genotypes growing in a wide range of soil types and climatic regions. The isolates were fast-growing and acid-producing. In establishing a serological grouping for the isolates, the intrinsic antibiotic resistance (IAR) patterns to low concentrations of eight antibiotics ...
H, Moawad, B B, Bohlool
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Adsorption of rhizobia to cereal roots
Biochemical and Biophysical Research Communications, 1978Abstract The attachment of Rhizobium japonicum 61A89 to the roots of wheat and rice seedlings is an equilibrium process that follows a Langmuir adsorption isotherm. This model predicts a maximum of 8 × 109 viable bound bacteria per g of root. Different strains of bound rhizobia have both characteristic appearances and surface densities on the ...
E J, Shimshick, R R, Hebert
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METABOLISM OF RHIZOBIA IN RELATION TO EFFECTIVENESS
Canadian Journal of Microbiology, 1957The ability of effective and ineffective strains of rhizobia to degrade 6-phosphogluconate directly to pyruvate and the metabolic activity of these strains in relation to the glycolytic, and hexose monophosphate oxidative pathways of carbohydrate break down were studied.
H, KATZNELSON, A C, ZAGALLO
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Salt and pH tolerance of Rhizobia
Folia Microbiologica, 1973Salt and pH tolerance ofRhizobium strains specific forSesbania cannabina Pers., sannhemp (Crotalaria juncea L.) and soybean [Glycine max (L) Merr.] have been studied. The salt effect appeared to be ion-specific. Chlorides were more toxic than sulphates of Na, K and Mg. MgSo4 has a stimulatory effect at lower than 1.0%.
N K, Yadav, S R, Vyas
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Biosynthesis of Polyhydroxyalkanoates and their Regulation in Rhizobia
2001During free living reproductive growth Rhizobium spp. is capable to accumulate poly-s-hydroxybutyrate (PHB) and to synthesize intracellular glycogen. These bacteria can also produce and excrete exopolysaccharides and s-1,2-glucan. Rhizobia provide an excellent model to investigate the connection between cellular metabolism and polyester accumulation ...
POVOLO, SILVANA, CASELLA, SERGIO
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Presence of rhizobia in soils in Somalia
World Journal of Microbiology & Biotechnology, 1995Bradyrhizobium japonicum was absent and only low numbers of Rhizobium were present in nodulating forage legumes in 13 soil samples from the Jubba and Shabelle rivers of Somalia.
M, Ciani, F U, Diriye
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2000
16S rRNA sequence analyses have been used to infer the phylogenetic relationships among rhizobial species by comparison with results obtained from sequences of two alternative loci. We consider the possibility of whether a biological species approach might be useful in defining species limits in the rhizobia.
Peter van Berkum +2 more
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16S rRNA sequence analyses have been used to infer the phylogenetic relationships among rhizobial species by comparison with results obtained from sequences of two alternative loci. We consider the possibility of whether a biological species approach might be useful in defining species limits in the rhizobia.
Peter van Berkum +2 more
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Canadian Journal of Microbiology, 1992
Extensive cross testing on a relatively few legume hosts led initially to a taxonomic characterization of rhizobia based on bacteria–plant cross–inoculation groups. This has gradually become less acceptable, and has been replaced by taxonomic groupings derived from numerical taxonomy, carbohydrate metabolism, antibiotic susceptiblities, serology, and ...
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Extensive cross testing on a relatively few legume hosts led initially to a taxonomic characterization of rhizobia based on bacteria–plant cross–inoculation groups. This has gradually become less acceptable, and has been replaced by taxonomic groupings derived from numerical taxonomy, carbohydrate metabolism, antibiotic susceptiblities, serology, and ...
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2001
Abstract Most of the legumes have the ability to establish a dinitrogen-fixing association with bacteria defined as rhizobia. The legume crops will benefit from this symbiosis only when the plant roots encounter, during their development, compatible and efficient rhizobia that can induce the formation of fully effective nodules.
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Abstract Most of the legumes have the ability to establish a dinitrogen-fixing association with bacteria defined as rhizobia. The legume crops will benefit from this symbiosis only when the plant roots encounter, during their development, compatible and efficient rhizobia that can induce the formation of fully effective nodules.
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