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Nitrogen control in bacteria
Nitrogen metabolism in prokaryotes involves the coordinated expression of a large number
of enzymes concerned with both utilization of extracellular nitrogen sources and intracellular …
of enzymes concerned with both utilization of extracellular nitrogen sources and intracellular …
Rhizobium-legume nodulation: life together in the underground
SR Long - Cell, 1989 - Elsevier
How good and how pleasant it is for organisms to dwell together in unity! And, probably, how
common it is in the biological world. This review concerns a dramatic association, one of the …
common it is in the biological world. This review concerns a dramatic association, one of the …
Metabolite transport across symbiotic membranes of legume nodules
▪ Abstract Infection of legume roots or stems with soil bacteria of the Rhizobiaceae results in
the formation of nodules that become symbiotic nitrogen-fixing organs. Within the infected …
the formation of nodules that become symbiotic nitrogen-fixing organs. Within the infected …
PII Signal Transduction Proteins, Pivotal Players in Microbial Nitrogen Control
The PII family of signal transduction proteins are among the most widely distributed signal
proteins in the bacterial world. First identified in 1969 as a component of the glutamine …
proteins in the bacterial world. First identified in 1969 as a component of the glutamine …
Cascade regulation of nif gene expression in Rhizobium meliloti
We report the discovery of two genes from Rhizobium meliloti, fixL and fixJ, which are
positive regulators of symbiotic expression of diverse nitrogen fixation (nif and fix) genes. nif …
positive regulators of symbiotic expression of diverse nitrogen fixation (nif and fix) genes. nif …
The regulation of symbiotic N2 fixation: a conceptual model of N feedback from the ecosystem to the gene expression level
UA Hartwig - Perspectives in Plant Ecology, Evolution and …, 1998 - Elsevier
Symbiotic nitrogen (N2) fixation in legumes may give the host plant a distinct competitive
advantage; at the same time it is mainly responsible for introducing N into terrestrial …
advantage; at the same time it is mainly responsible for introducing N into terrestrial …
Oxygen regulatory mechanisms of nitrogen fixation in rhizobia
Rhizobia are α-and β-proteobacteria that form a symbiotic partnership with legumes, fixing
atmospheric dinitrogen to ammonia and providing it to the plant. Oxygen regulation is key in …
atmospheric dinitrogen to ammonia and providing it to the plant. Oxygen regulation is key in …
Rhizobium meliloti ntrA (rpoN) gene is required for diverse metabolic functions
We report the identification and cloning of an ntrA-like (glnF rpoN) gene of Rhizobium
meliloti and show that the R. meliloti ntrA product (NtrA) is required for C4-dicarboxylate …
meliloti and show that the R. meliloti ntrA product (NtrA) is required for C4-dicarboxylate …
The genome of the versatile nitrogen fixer Azorhizobium caulinodans ORS571
Background Biological nitrogen fixation is a prokaryotic process that plays an essential role
in the global nitrogen cycle. Azorhizobium caulinodans ORS571 has the dual capacity to fix …
in the global nitrogen cycle. Azorhizobium caulinodans ORS571 has the dual capacity to fix …
Characterization of a novel Azorhizobium caulinodans ORS571 two-component regulatory system, NtrY/NtrX, involved in nitrogen fixation and metabolism
Azorhizobium caulinodans ORS571 nifA regulation is partially mediated by the nitrogen
regulatory gene ntrC. However, the residual nifA expression in ntrC mutant strains is still …
regulatory gene ntrC. However, the residual nifA expression in ntrC mutant strains is still …