Nitrogen control in bacteria

MJ Merrick, RA Edwards - Microbiological reviews, 1995‏ - journals.asm.org
Nitrogen metabolism in prokaryotes involves the coordinated expression of a large number
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 …

Metabolite transport across symbiotic membranes of legume nodules

MK Udvardi, DA Day - Annual review of plant biology, 1997‏ - annualreviews.org
▪ 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 …

PII Signal Transduction Proteins, Pivotal Players in Microbial Nitrogen Control

T Arcondéguy, R Jack, M Merrick - Microbiology and Molecular …, 2001‏ - journals.asm.org
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 …

Cascade regulation of nif gene expression in Rhizobium meliloti

M David, ML Daveran, J Batut, A Dedieu, O Domergue… - Cell, 1988‏ - cell.com
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 …

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 …

Oxygen regulatory mechanisms of nitrogen fixation in rhizobia

PJ Rutten, PS Poole - Advances in microbial physiology, 2019‏ - Elsevier
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 …

Rhizobium meliloti ntrA (rpoN) gene is required for diverse metabolic functions

CW Ronson, BT Nixon, LM Albright… - Journal of …, 1987‏ - journals.asm.org
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 …

The genome of the versatile nitrogen fixer Azorhizobium caulinodans ORS571

KB Lee, P De Backer, T Aono, CT Liu, S Suzuki… - BMC genomics, 2008‏ - Springer
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 …

Characterization of a novel Azorhizobium caulinodans ORS571 two-component regulatory system, NtrY/NtrX, involved in nitrogen fixation and metabolism

K Pawlowski, U Klosse, FJ de Bruijn - Molecular and General Genetics …, 1991‏ - Springer
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 …