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Literature DB >> 17091217

Glutamate is involved in acid stress response in Bradyrhizobium sp. SEMIA 6144 (Arachis hypogaea L.) microsymbiont.

V Natera¹, L Sobrevals, A Fabra, S Castro.

Abstract

In the present study, the effect of acid stress on ammonium assimilation in Bradyrhizobium sp. SEMIA 6144 (Arachis hypogaea L.) microsymbiont was analyzed. The bacterial growth rate was decreased by 50%, and a significant increase in intracellular glutamate concentration was detected when the strain grew at acid pH (5.5). Assays of the enzymes involved in glutamate synthesis showed increased activities of glutamine synthetase (GS) and glutamate synthase (NADPH-GOGAT) under acid stress condition. This would support the contention that the GS/NADPH-GOGAT pathway contributes to the increase of glutamate synthesis as a compatible solute in response to acid stress.

Entities: Chemical Disease Species

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Year: 2006 PMID： 17091217 DOI： 10.1007/s00284-006-0146-y

Source DB: PubMed Journal: Curr Microbiol ISSN： 0343-8651 Impact factor: 2.188

12 in total

1. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding.

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Journal: Anal Biochem Date: 1976-05-07 Impact factor: 3.365

1. General stress response signalling: unwrapping transcription complexes by DNA relaxation via the sigma38 C-terminal domain.

Authors: Yi-Xin Huo; Adam Z Rosenthal; Jay D Gralla
Journal: Mol Microbiol Date: 2008-08-22 Impact factor: 3.501

1 in total

Glutamate is involved in acid stress response in Bradyrhizobium sp. SEMIA 6144 (Arachis hypogaea L.) microsymbiont.

1. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding.

2. Role of GOGAT in carbon and nitrogen partitioning in Rhizobium etli.

3. Regulation of glutamine synthetase. IX. Reactivity of the sulfhydryl groups of the enzyme from Escherichia coli.

4. The pathways of ammonium assimilation in Rhizobium meliloti.

5. Ammonia assimilation by rhizobium cultures and bacteroids.

6. Biochemical parameters of glutamine synthetase from Klebsiella aerogenes.

7. Purification and characterization of glutamate synthase from Azospirillum brasilense.

8. Response of Azospirillum brasilense Cd to sodium chloride stress.

9. Ammonium assimilation in Rhizobium phaseoli by the glutamine synthetase-glutamate synthase pathway.

10. Introduction of the Escherichia coli gdhA gene into Rhizobium phaseoli: effect on nitrogen fixation.

1. General stress response signalling: unwrapping transcription complexes by DNA relaxation via the sigma38 C-terminal domain.