Azospirillaceae 65 claims

family · order Rhodospirillales · 3 taxa · NCBI Taxonomy ↗

3 entries

Azospirillum brasilensealso A. brasilense Cd · also A. brasilense 10/144 claims · 10 papers Azospirillum13 claims · 6 papers Niveispirillum irakensealso Azospirillum irakense · also A. irakense8 claims · 1 paper

65 claims

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Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A. brasilense Sp245 regulated the expression of hundreds of genes during growth on root exudates.

Taxon: A. brasilense Sp245Azospirillum brasilensee0
Treatment: growth on root exudatese0
Outcome: expression of hundreds of genese0
Direction: regulatede0

Not reportedComparator

Verbatim

e0
“Transcriptomic analyses during PGPR growth on root exudates revealed that B. subtilis ATCC 6633 and A. brasilense Sp245 regulated the expression of hundreds of genes”
✓ located verbatim in the source · abstract, characters 743–908

Title

When roots talk, bacteria respond: Comparative transcriptomics of three plant growth-promoting rhizobacteria growing on root exudates reveals plant-specific responses

Eulalie Fourneau; Baptiste Barbault; Mélissa Pannier; et al. Rhizosphere 2026. doi:10.1016/j.rhisph.2026.101293

Other claims from this paper (8)

Intervention effect B. subtilis ATCC 6633 regulated the expression of hundreds of genes during growth on root exudates.
Observation P. fluorescens ATCC 17400 appeared to already express most of the genes required for the response to root exudates.
Intervention effect Certain bacterial genes, mainly involved in metabolism, were regulated by all three root exudates through a core transcriptome.
Intervention effect Other bacterial genes were specifically modulated by the exudates of each plant.
Intervention effect Rapeseed root exudates stimulated amino acid metabolism in the PGPR.
Intervention effect Pea root exudates repressed motility of the PGPR.
Intervention effect Pea root exudates activated defense mechanisms in the PGPR.
Observation Amino acids and sugars present in root exudates and metabolized by the PGPR were deduced.

Mechanismobservedreview summarybasis n/a

Claim · model-written summary

Structural nif genes govern biological nitrogen fixation in Azospirillum.

Taxon: AzospirillumAzospirillume0
Gene: nif genese0
Outcome: Biological nitrogen fixatione0

Verbatim

e0
“Biological nitrogen fixation (BNF) is the primary mechanism of Azospirillum, which is governed by structural nif genes present in all diazotrophic species”
✓ located verbatim in the source · abstract, characters 1083–1237

e1
“Azospirillum–plant interactions”
✓ located verbatim in the source · abstract, characters 269–300

Title

Unveiling the Molecular Mechanism of Azospirillum in Plant Growth Promotion

Bikash Ranjan Giri; Sourav Chattaraj; Subhashree Rath; et al. Bacteria 2025. doi:10.3390/bacteria4030036

Other claims from this paper (7)

Mechanism Azospirillum enhances plant growth and productivity by supplying nutrients.
Mechanism Azospirillum modifies membrane phospholipids and fatty acids and maintains fluidity under water deficiency.
Observation Azospirillum promotes adventitious root development.
Observation Azospirillum increases mineral and water uptake.
Observation Azospirillum mitigates biotic and abiotic stressors.
Observation Azospirillum exhibits antipathogenic activity.
Mechanism Azospirillum influences plant gene expression pathways associated with resistance.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Azospirillum 16S rRNA sequence identity to reference strains was 99.5 to 99.6%.

Taxon: A. brasilense 10/1Azospirillum brasilensee0
Outcome: identity of the sequences of 16S rRNAe0
Value: 99.5 % to 99.6 %e0

Verbatim

e0
“The identity of the sequences of 16S rRNA of A. brasilense 10/1 with reference strains of A. brasilense in the GenBank NCBI database is 99.5 % to 99.6 %”
✓ located verbatim in the source · abstract, characters 1404–1556

Title

BIOLOGICAL PROPERTIES OF DIAZOTROPH AZOSPIRILLUM BRASILENSE ISOLATED FROM SPRING TRITICALE ROOTS

О. О. Shakhovnina; O. V. Nadkernychna; V. M. Strekalov; et al. Agriciltural microbiology 2021. doi:10.35868/1997-3004.32.48-57

Other claims from this paper (7)

Observation An active nitrogen-fixing Azospirillum brasilense 10/1 strain was selected from triticale roots.
Observation The isolate was sensitive to seven named antibiotics.
Observation The isolate resisted six named antibiotics.
Intervention effect Vitavax 200FF and Fundazole did not affect isolate development.
Intervention effect Maxim Star 025 FS somewhat inhibited isolate development.
Recommendation The authors considered the isolate a promising inoculant for triticale yield and grain quality.
Method / resource A. brasilense 10/1 was deposited under B- 7317 and protected by a Ukrainian patent.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The isolate was sensitive to seven named antibiotics.

Taxon: A. brasilense 10/1Azospirillum brasilensee0
Outcome: sensitive to cefotaxime, norfloxacin, chloramphenicol, gentamicin, erythromycin, kanamycin, furadonine0

Verbatim

e0
“Diazotroph A. brasilense 10/1 is sensitive to cefotaxime, norfloxacin, chloramphenicol, gentamicin, erythromycin, kanamycin, furadonin”
✓ located verbatim in the source · abstract, characters 1558–1692

Title

BIOLOGICAL PROPERTIES OF DIAZOTROPH AZOSPIRILLUM BRASILENSE ISOLATED FROM SPRING TRITICALE ROOTS

О. О. Shakhovnina; O. V. Nadkernychna; V. M. Strekalov; et al. Agriciltural microbiology 2021. doi:10.35868/1997-3004.32.48-57

Other claims from this paper (7)

Observation An active nitrogen-fixing Azospirillum brasilense 10/1 strain was selected from triticale roots.
Observation Azospirillum 16S rRNA sequence identity to reference strains was 99.5 to 99.6%.
Observation The isolate resisted six named antibiotics.
Intervention effect Vitavax 200FF and Fundazole did not affect isolate development.
Intervention effect Maxim Star 025 FS somewhat inhibited isolate development.
Recommendation The authors considered the isolate a promising inoculant for triticale yield and grain quality.
Method / resource A. brasilense 10/1 was deposited under B- 7317 and protected by a Ukrainian patent.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Vitavax 200FF and Fundazole did not affect isolate development.

Taxon: A. brasilense 10/1Azospirillum brasilensee0
Treatment: Vitavax 200FF and Fundazole dresserse0
Outcome: development of A. brasilense 10/1e0
Direction: do not affecte0

Not reportedComparator

Verbatim

e0
“Vitavax 200FF and Fundazole dressers do not affect the development of A. brasilense 10/1”
✓ located verbatim in the source · abstract, characters 1782–1870

Title

BIOLOGICAL PROPERTIES OF DIAZOTROPH AZOSPIRILLUM BRASILENSE ISOLATED FROM SPRING TRITICALE ROOTS

О. О. Shakhovnina; O. V. Nadkernychna; V. M. Strekalov; et al. Agriciltural microbiology 2021. doi:10.35868/1997-3004.32.48-57

Other claims from this paper (7)

Observation An active nitrogen-fixing Azospirillum brasilense 10/1 strain was selected from triticale roots.
Observation Azospirillum 16S rRNA sequence identity to reference strains was 99.5 to 99.6%.
Observation The isolate was sensitive to seven named antibiotics.
Observation The isolate resisted six named antibiotics.
Intervention effect Maxim Star 025 FS somewhat inhibited isolate development.
Recommendation The authors considered the isolate a promising inoculant for triticale yield and grain quality.
Method / resource A. brasilense 10/1 was deposited under B- 7317 and protected by a Ukrainian patent.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

A. brasilense 10/1 was deposited under B- 7317 and protected by a Ukrainian patent.

Taxon: A. brasilense 10/1Azospirillum brasilensee0
Outcome: deposited in the Depositorye0
Value: B- 7317e0

Verbatim

e0
“A. brasilense 10/1 is deposited in the Depository of the Institute of Microbiology and Virology of the National Academy of Sciences of Ukraine under number B- 7317 and is protected by the patent of Ukraine No. 104212”
✓ located verbatim in the source · abstract, characters 2174–2390

Title

BIOLOGICAL PROPERTIES OF DIAZOTROPH AZOSPIRILLUM BRASILENSE ISOLATED FROM SPRING TRITICALE ROOTS

О. О. Shakhovnina; O. V. Nadkernychna; V. M. Strekalov; et al. Agriciltural microbiology 2021. doi:10.35868/1997-3004.32.48-57

Other claims from this paper (7)

Observation An active nitrogen-fixing Azospirillum brasilense 10/1 strain was selected from triticale roots.
Observation Azospirillum 16S rRNA sequence identity to reference strains was 99.5 to 99.6%.
Observation The isolate was sensitive to seven named antibiotics.
Observation The isolate resisted six named antibiotics.
Intervention effect Vitavax 200FF and Fundazole did not affect isolate development.
Intervention effect Maxim Star 025 FS somewhat inhibited isolate development.
Recommendation The authors considered the isolate a promising inoculant for triticale yield and grain quality.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Engineered Azospirillum brasilense strains significantly extended ammonia production to 32 days in culture.

Taxon: Azospirillum brasilenseAzospirillum brasilensee0
Treatment: engineered Azospirillum brasilense strainse0
Outcome: ammonia production lifetimese0
Direction: extende0
Value: 32 dayse0
Setting: culturee0

Not reportedComparator

Verbatim

e0
“Here we report engineered Azospirillum brasilense strains with significantly extend ammonia production lifetimes of up to 32 days in culture.”
✓ located verbatim in the source · abstract, characters 721–862

Title

Improved Stability of Engineered Ammonia Production in the Plant-Symbiont Azospirillum brasilense

Tim Schnabel; Elizabeth Sattely ACS Synthetic Biology 2021. doi:10.1021/acssynbio.1c00287

Other claims from this paper (6)

Mechanism Multicopy uAT induces ammonia release through glutamine synthetase deactivation.
Intervention effect Multicopy stable strains improved Setaria viridis growth promotion compared with single-copy strains in hydroponic monoassociation.
Intervention effect Inoculation did not increase Zea mays growth promotion relative to WT in nitrogen-poor nonsterile soil.
Mechanism Strain health, competition or colonization may limit growth promotion in soil.
Intervention effect Engineered strains fixed more nitrogen per cell than WT.
Recommendation The authors recommend balancing multicopy uAT expression to maximize ammonia production and avoid fitness defects.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Multicopy uAT induces ammonia release through glutamine synthetase deactivation.

Taxon: Azospirillum brasilenseAzospirillum brasilenset0
Gene: unidirectional adenylyltransferasee0
Outcome: ammonia releasee0
Qualifier: glutamine synthetase deactivatione0

Verbatim

e0
“Our approach relies on multicopy genetic redundancy of a unidirectional adenylyltransferase (uAT) as a posttranslational mechanism to induce ammonia release via glutamine synthetase deactivation.”
✓ located verbatim in the source · abstract, characters 863–1058

t0
“Azospirillum brasilense”
✓ located verbatim in the source · title, characters 74–97

Title

Improved Stability of Engineered Ammonia Production in the Plant-Symbiont Azospirillum brasilense

Tim Schnabel; Elizabeth Sattely ACS Synthetic Biology 2021. doi:10.1021/acssynbio.1c00287

Other claims from this paper (6)

Intervention effect Engineered Azospirillum brasilense strains significantly extended ammonia production to 32 days in culture.
Intervention effect Multicopy stable strains improved Setaria viridis growth promotion compared with single-copy strains in hydroponic monoassociation.
Intervention effect Inoculation did not increase Zea mays growth promotion relative to WT in nitrogen-poor nonsterile soil.
Mechanism Strain health, competition or colonization may limit growth promotion in soil.
Intervention effect Engineered strains fixed more nitrogen per cell than WT.
Recommendation The authors recommend balancing multicopy uAT expression to maximize ammonia production and avoid fitness defects.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Engineered strains fixed more nitrogen per cell than WT.

Taxon: Azospirillum brasilenseAzospirillum brasilenset0
Treatment: engineered strainse0
Outcome: nitrogen per celle0
Direction: moree0
Comparator: WT strainse0

Verbatim

e0
“engineered strains fix more nitrogen per cell compared to WT strains”
✓ located verbatim in the source · abstract, characters 1509–1577

t0
“Azospirillum brasilense”
✓ located verbatim in the source · title, characters 74–97

Title

Improved Stability of Engineered Ammonia Production in the Plant-Symbiont Azospirillum brasilense

Tim Schnabel; Elizabeth Sattely ACS Synthetic Biology 2021. doi:10.1021/acssynbio.1c00287

Other claims from this paper (6)

Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend balancing multicopy uAT expression to maximize ammonia production and avoid fitness defects.

Taxon: Azospirillum brasilenseAzospirillum brasilenset0
Gene: uATe0
Outcome: expression strength of multiple uAT copies needs to be carefully balancede0

Verbatim

e0
“the expression strength of multiple uAT copies needs to be carefully balanced to maximize ammonia production rates and avoid excessive fitness defects caused by excessive glutamine synthetase shutdown.”
✓ located verbatim in the source · abstract, characters 1579–1780

t0
“Azospirillum brasilense”
✓ located verbatim in the source · title, characters 74–97

Title

Improved Stability of Engineered Ammonia Production in the Plant-Symbiont Azospirillum brasilense

Tim Schnabel; Elizabeth Sattely ACS Synthetic Biology 2021. doi:10.1021/acssynbio.1c00287

Other claims from this paper (6)

Intervention effect Engineered Azospirillum brasilense strains significantly extended ammonia production to 32 days in culture.
Mechanism Multicopy uAT induces ammonia release through glutamine synthetase deactivation.
Intervention effect Multicopy stable strains improved Setaria viridis growth promotion compared with single-copy strains in hydroponic monoassociation.
Intervention effect Inoculation did not increase Zea mays growth promotion relative to WT in nitrogen-poor nonsterile soil.
Mechanism Strain health, competition or colonization may limit growth promotion in soil.
Intervention effect Engineered strains fixed more nitrogen per cell than WT.