ArticleApplied and environmental microbiology2003
Involvement of the reserve material poly-beta-hydroxybutyrate in Azospirillum brasilense stress endurance and root colonization.
Article in Applied and environmental microbiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
57 citing papers in PubMed, 1 synthesis or guideline pooled it, 183 citations in OpenAlex.
- Polyhydroxyalkanoate degradation in soils: mechanisms, controls, biological responses, and knowledge gaps.Frontiers in microbiology · 2026Pooled it
- The β2αB loop determines NAD(P) cofactor specificity and kinetics in trypanosomal D-3-hydroxybutyrate dehydrogenases.Journal of molecular biology · 2026Article
- Co-assembly of Azospirillum-Pseudomonas biofilms in the rhizosphere enhances lettuce root colonization, growth, and heat-stress resilience.FEMS microbiology ecology · 2025Article
- Polyhydroxybutyrates Production by Azospirillum brasilense as a Microalgal Growth Promotion Trait During COCurrent microbiology · 2025Article
- Evaluation of the Method of Periodic Medium Renewal ofPolymers · 2025Article
- Ethylene signals through an ethylene receptor to modulate biofilm formation and root colonization in a beneficial plant-associated bacterium.PLoS genetics · 2025Article
- Microbial inheritance through seed: a clouded area needs to be enlightened.Archives of microbiology · 2025Review
- Quantitative Analysis ofBiomolecules · 2024Article
- Review
- Biosynthesis of polyhydroxybutyrate byFrontiers in plant science · 2024Article
- Polyhydroxybutyrate Metabolism inPolymers · 2023Review
- Biogeochemical properties of blue carbon sediments influence the distribution and monomer composition of bacterial polyhydroxyalkanoates (PHA).Biogeochemistry · 2023Article
- Article
- Metabolomic analysis of halotolerant endophytic bacteriumFrontiers in molecular biosciences · 2022Article
- Genetic Circuit Design in Rhizobacteria.Biodesign research · 2022Review
- Redox Regulation in Diazotrophic Bacteria in Interaction with Plants.Antioxidants (Basel, Switzerland) · 2021Review
- Multiple Precursor Proteins of Thanatin Isoforms, an Antimicrobial Peptide Associated With the Gut Symbiont ofFrontiers in microbiology · 2021Article
- Transcriptional Responses ofFrontiers in microbiology · 2021Article
- 3-Hydroxybutyrate Derived from Poly-3-Hydroxybutyrate Mobilization Alleviates Protein Aggregation in Heat-Stressed Herbaspirillum seropedicae SmR1.Applied and environmental microbiology · 2020Article
- On the Role and Production of Polyhydroxybutyrate (PHB) in the CyanobacteriumLife (Basel, Switzerland) · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
When grown under suboptimal conditions, rhizobacteria of the genus Azospirillum produce high levels of poly-beta-hydroxybutyrate (PHB). Azospirillum brasilense strain Sp7 and a phbC (PHB synthase) mutant strain in which PHB production is impaired were evaluated for metabolic versatility, for the ability to endure various stress conditions, for survival in soil inoculants, and for the potential to promote plant growth. The carbon source utilization data were similar for the wild-type and mutant strains, but the generation time of the wild-type strain was shorter than that of the mutant strain with all carbon sources tested. The ability of the wild type to endure UV irradiation, heat, osmotic pressure, osmotic shock, and desiccation and to grow in the presence of hydrogen peroxide was greater than that of the mutant strain. The motility and cell aggregation of the mutant strain were greater than the motility and cell aggregation of the wild type. However, the wild type exhibited greater chemotactic responses towards attractants than the mutant strain exhibited. The wild-type strain exhibited better survival than the mutant strain in carrier materials used for soil inoculants, but no difference in the ability to promote plant growth was detected between the strains. In soil, the two strains colonized roots to the same extent. It appears that synthesis and utilization of PHB as a carbon and energy source by A. brasilense under stress conditions favor establishment of this bacterium and its survival in competitive environments. However, in A. brasilense, PHB production does not seem to provide an advantage in root colonization under the conditions tested.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.