ArticleJournal of bacteriology2001
Enhanced symbiotic performance by Rhizobium tropici glycogen synthase mutants.
Article in Journal of bacteriology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.
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Who cites it
22 citing papers in PubMed, 1 synthesis or guideline pooled it, 83 citations in OpenAlex.
- Rhizosphere Bacteria in Plant Growth Promotion, Biocontrol, and Bioremediation of Contaminated Sites: A Comprehensive Review of Effects and Mechanisms.International journal of molecular sciences · 2021Pooled it
- Structural basis for phosphorylation and allosteric regulation of bacterial glycogen phosphorylase by histidine phosphocarrier protein.Nature communications · 2026Article
- Differential responses of Bradyrhizobium sp. SUTN9-2 to plant extracts and implications for endophytic interactions within different host plants.Scientific reports · 2025Article
- Architecture, Function, Regulation, and Evolution of α-Glucans Metabolic Enzymes in Prokaryotes.Chemical reviews · 2024Review
- Metabolic control of nitrogen fixation in rhizobium-legume symbioses.Science advances · 2021Article
- How Rhizobia Adapt to the Nodule Environment.Journal of bacteriology · 2021Article
- Assessing the Plant Growth Promoting and Arsenic Tolerance Potential of Bradyrhizobium japonicum CB1809.Environmental management · 2020Article
- Plant Growth-Promoting Rhizobacteria: Context, Mechanisms of Action, and Roadmap to Commercialization of Biostimulants for Sustainable Agriculture.Frontiers in plant science · 2018Review
- Interaction and Regulation of Carbon, Nitrogen, and Phosphorus Metabolisms in Root Nodules of Legumes.Frontiers in plant science · 2018Review
- Ecological genomics of mutualism decline in nitrogen-fixing bacteria.Proceedings. Biological sciences · 2016Article
- Phosphorylation of Leghemoglobin at S45 is Most Effective to Disrupt the Molecular Environment of Its Oxygen Binding Pocket.The protein journal · 2015Article
- Article
- Transcriptome analysis of the role of GlnD/GlnBK in nitrogen stress adaptation by Sinorhizobium meliloti Rm1021.PloS one · 2013Article
- Plant growth-promoting bacteria: mechanisms and applications.Scientifica · 2012Review
- Regulation of glycogen metabolism in yeast and bacteria.FEMS microbiology reviews · 2010Review
- The nodC, nodG, and glgX genes of Rhizobium tropici strain PRF 81.Functional & integrative genomics · 2010Article
- Genome-wide screening of genes whose enhanced expression affects glycogen accumulation in Escherichia coli.DNA research : an international journal for rapid publication of reports on genes and genomes · 2010Article
- Influence of the poly-3-hydroxybutyrate (PHB) granule-associated proteins (PhaP1 and PhaP2) on PHB accumulation and symbiotic nitrogen fixation in Sinorhizobium meliloti Rm1021.Journal of bacteriology · 2007Article
- Metabolic reconstruction and modeling of nitrogen fixation in Rhizobium etli.PLoS computational biology · 2007Article
- Identification of novel Sinorhizobium meliloti mutants compromised for oxidative stress protection and symbiosis.Journal of bacteriology · 2007Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We isolated a Tn5-induced Rhizobium tropici mutant that has enhanced capacity to oxidize N,N-dimethyl-p-phenylendiamine (DMPD) and therefore has enhanced respiration via cytochrome oxidase. The mutant had increased levels of the cytochromes c(1) and CycM and a small increase in the amount of cytochrome aa(3). In plant tests, the mutant increased the dry weight of Phaseolus vulgaris plants by 20 to 38% compared with the control strain, thus showing significantly enhanced symbiotic performance. The predicted product of the mutated gene is homologous to glycogen synthases from several bacteria, and the mutant lacked glycogen. The DNA sequence of the adjacent gene region revealed six genes predicted to encode products homologous to the following gene products from Escherichia coli: glycogen phosphorylase (glgP), glycogen branching enzyme (glgB), ADP glucose pyrophosphorylase (glgC), glycogen synthase (glgA), phosphoglucomutase (pgm), and glycogen debranching enzyme (glgX). All six genes are transcribed in the same direction, and analysis with lacZ gene fusions suggests that the first five genes are organized in one operon, although pgm appears to have an additional promoter; glgX is transcribed independently. Surprisingly, the glgA mutant had decreased levels of high-molecular-weight exopolysaccharide after growth on glucose, but levels were normal after growth on galactose. A deletion mutant was constructed in order to generate a nonpolar mutation in glgA. This mutant had a phenotype similar to that of the Tn5 mutant, indicating that the enhanced respiration and symbiotic nitrogen fixation and decreased exopolysaccharide were due to mutation of glgA and not to a polar effect on a downstream gene.
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