Paper · 2023 · Plants

Whole-Genome Sequence Insight into the Plant-Growth-Promoting Bacterium Priestia filamentosa Strain AZC66 Obtained from Zygophyllum coccineum Rhizosphere

Ashraf Khalifa; Noorah Alsowayeh

17
claims
37
verbatim quotes
21
citations
5
research areas
✓
Open access · cc-by

Abstract

This study aimed to isolate, screen the plant-growth-enhancing features, and explore the whole-genome sequence of AZC66 isolated from the rhizosphere of Zygophyllum coccineum and determine its biostimulating effects on the growth of cowpea under greenhouse conditions. Salkowski reagent was used to measure AZC66’s indole acetic acid production. AZC66’s inorganic phosphate solubility on Pikovskaya agar was evaluated using tricalcium phosphate. The results indicated the ability of AZC66 to fix nitrogen, produce IAA (66.33 ± 0.44 μg mL−1), solubilize inorganic phosphate, and exhibit the activity of ACC deaminase (278.40 ± 21 mol -ketobutyrate mg−1 h−1). Cowpea’s root and shoot dry weights were also significantly increased after in vitro inoculation with AZC66. The identity of AZC66 was confirmed as Priestia filamentosa, and 4840 genes were predicted in its genome. The gene sequences were compared against the Kyoto Encyclopedia of Genes and Genomes (KEGG) database, and the results showed that the top three pathways wherein the maximum number of genes are involved are signaling and cellular processes, genetic information processing, and carbohydrate metabolism. The genome sequencing of the strain AZC66 revealed a number of genes implicated in plant biostimulation activities such as nitrogen fixation (nifU), phytohormone synthesis (trpAB genes), phosphate solubilization (PhbCEF, pstABCS, and phoU), and siderophore formation (FbpA, feoAB, and fetB). The AZC66 genome contained numerous genes involved in nitrogen metabolism, nitrogen regulation, and the nitrate reduction pathway. The phenazine biosynthetic gene in AZC66 demonstrated biocontrol and soil survival properties. The trehalose synthesis genes in AZC66 may help plants resist osmotic and salt stress. The discovery of glycine betaine, cold shock, and heat shock protein genes demonstrated that AZC66 could withstand harsh conditions. AZC66 might be used to create robust, sustainable biological fertilizers for future agricultural use in Saudi Arabia. Furthermore, the predicted adaptable metabolic pathways might serve as the basis for potential biotechnological applications in agriculture and industry.

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Claims 17

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Inoculation with AZC66 significantly increased cowpea root and shoot dry weights in vitro

Treatment
in vitro inoculation with AZC66e1
Interactor
AZC66e1symbiont
Outcome
root and shoot dry weightse1
Direction
increasede1
Setting
in vitroe1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“Cowpea’s root and shoot dry weights were also significantly increased after in vitro inoculation with AZC66”

✓ located verbatim in the source · abstract, characters 658–765 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AZC66 can fix nitrogen

Interactor
AZC66e4symbiont
Outcome
fix nitrogene4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e4

“the ability of AZC66 to fix nitrogen”

✓ located verbatim in the source · abstract, characters 468–504 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AZC66 produced IAA at 66.33 ± 0.44 μg mL−1

Interactor
AZC66e4symbiont
Compound
IAAe2
Outcome
produce IAAe2
Value
66.33 ± 0.44 μg mL−1e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e2

“produce IAA (66.33 ± 0.44 μg mL−1)”

✓ located verbatim in the source · abstract, characters 506–540 · show in text ↑
e4

“the ability of AZC66 to fix nitrogen”

✓ located verbatim in the source · abstract, characters 468–504 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AZC66 showed ACC deaminase activity of 278.40 ± 21 mol -ketobutyrate mg−1 h−1

Interactor
AZC66e4symbiont
Outcome
activity of ACC deaminasee3
Value
278.40 ± 21 mol -ketobutyrate mg−1 h−1e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e3

“exhibit the activity of ACC deaminase (278.40 ± 21 mol -ketobutyrate mg−1 h−1)”

✓ located verbatim in the source · abstract, characters 578–656 · show in text ↑
e4

“the ability of AZC66 to fix nitrogen”

✓ located verbatim in the source · abstract, characters 468–504 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AZC66 solubilized inorganic phosphate

Interactor
AZC66e4symbiont
Outcome
solubilize inorganic phosphatee5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e4

“the ability of AZC66 to fix nitrogen”

✓ located verbatim in the source · abstract, characters 468–504 · show in text ↑
e5

“solubilize inorganic phosphate”

✓ located verbatim in the source · abstract, characters 542–572 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The AZC66 genome has 4840 predicted genes

Interactor
AZC66e6symbiont
Outcome
genes were predictede6
Value
4840 genese6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e6

“The identity of AZC66 was confirmed as Priestia filamentosa, and 4840 genes were predicted in its genome”

✓ located verbatim in the source · abstract, characters 767–871 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The identity of AZC66 was confirmed as Priestia filamentosa

Interactor
AZC66e6symbiont
Outcome
identity of AZC66e6
Qualifier
confirmed as Priestia filamentosae6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e6

“The identity of AZC66 was confirmed as Priestia filamentosa, and 4840 genes were predicted in its genome”

✓ located verbatim in the source · abstract, characters 767–871 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The top three KEGG pathways with the most genes in AZC66 are signaling and cellular processes, genetic information processing, and carbohydrate metabolism

Outcome
the top three pathwayse7
Qualifier
signaling and cellular processes, genetic information processing, and carbohydrate metabolisme7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e7

“the top three pathways wherein the maximum number of genes are involved are signaling and cellular processes, genetic information processing, and carbohydrate metabolism”

✓ located verbatim in the source · abstract, characters 1003–1172 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The AZC66 genome contains nifU, implicated in nitrogen fixation

Interactor
AZC66e1symbiont
Gene
nifUe1
Outcome
nitrogen fixatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“The genome sequencing of the strain AZC66 revealed a number of genes implicated in plant biostimulation activities such as nitrogen fixation (nifU), phytohormone synthesis (trpAB genes), phosphate solubilization (PhbCEF, pstABCS, and phoU), and siderophore formation (FbpA, feoAB, and fetB)”

✓ located verbatim in the source · abstract, characters 1174–1464 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The AZC66 genome contains trpAB genes for phytohormone synthesis

Interactor
AZC66e1symbiont
Gene
trpAB genese1
Outcome
phytohormone synthesise1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“The genome sequencing of the strain AZC66 revealed a number of genes implicated in plant biostimulation activities such as nitrogen fixation (nifU), phytohormone synthesis (trpAB genes), phosphate solubilization (PhbCEF, pstABCS, and phoU), and siderophore formation (FbpA, feoAB, and fetB)”

✓ located verbatim in the source · abstract, characters 1174–1464 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The AZC66 genome contains PhbCEF, pstABCS and phoU genes for phosphate solubilization

Interactor
AZC66e1symbiont
Gene
PhbCEF, pstABCS, and phoUe1
Outcome
phosphate solubilizatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“The genome sequencing of the strain AZC66 revealed a number of genes implicated in plant biostimulation activities such as nitrogen fixation (nifU), phytohormone synthesis (trpAB genes), phosphate solubilization (PhbCEF, pstABCS, and phoU), and siderophore formation (FbpA, feoAB, and fetB)”

✓ located verbatim in the source · abstract, characters 1174–1464 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The AZC66 genome contains FbpA, feoAB and fetB genes for siderophore formation

Interactor
AZC66e1symbiont
Gene
FbpA, feoAB, and fetBe1
Outcome
siderophore formatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“The genome sequencing of the strain AZC66 revealed a number of genes implicated in plant biostimulation activities such as nitrogen fixation (nifU), phytohormone synthesis (trpAB genes), phosphate solubilization (PhbCEF, pstABCS, and phoU), and siderophore formation (FbpA, feoAB, and fetB)”

✓ located verbatim in the source · abstract, characters 1174–1464 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The AZC66 genome contains numerous genes involved in nitrogen metabolism and nitrate reduction

Interactor
AZC66e1symbiont
Outcome
genes involved in nitrogen metabolisme1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“The AZC66 genome contained numerous genes involved in nitrogen metabolism, nitrogen regulation, and the nitrate reduction pathway”

✓ located verbatim in the source · abstract, characters 1466–1595 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The phenazine biosynthetic gene in AZC66 is associated with biocontrol and soil survival properties

Interactor
AZC66e1symbiont
Gene
phenazine biosynthetic genee1
Outcome
biocontrol and soil survival propertiese1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“The phenazine biosynthetic gene in AZC66 demonstrated biocontrol and soil survival properties”

✓ located verbatim in the source · abstract, characters 1597–1690 · show in text ↑
Mechanismhypothesisoriginal resultpositivemeasured

Claim · model-written summary

Trehalose synthesis genes in AZC66 may help plants resist osmotic and salt stress

Interactor
AZC66e1symbiont
Gene
trehalose synthesis genese1
Outcome
resist osmotic and salt stresse1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“The trehalose synthesis genes in AZC66 may help plants resist osmotic and salt stress”

✓ located verbatim in the source · abstract, characters 1692–1777 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AZC66 genes for glycine betaine, cold shock and heat shock proteins indicate it could withstand harsh conditions

Interactor
AZC66e1symbiont
Gene
glycine betaine, cold shock, and heat shock protein genese1
Outcome
could withstand harsh conditionse1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“The discovery of glycine betaine, cold shock, and heat shock protein genes demonstrated that AZC66 could withstand harsh conditions”

✓ located verbatim in the source · abstract, characters 1779–1910 · show in text ↑
Recommendationhypothesisoriginal resultbasis n/a

Claim · model-written summary

AZC66 might be used to create robust, sustainable biological fertilizers for agriculture in Saudi Arabia

Interactor
AZC66e1symbiont
Outcome
create robust, sustainable biological fertilizerse1
Setting
Saudi Arabiae1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“determine its biostimulating effects on the growth of cowpea under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 179–267 · show in text ↑
e1

“AZC66 might be used to create robust, sustainable biological fertilizers for future agricultural use in Saudi Arabia”

✓ located verbatim in the source · abstract, characters 1912–2028 · show in text ↑

in vitro · growth · Vigna unguiculata (cowpea)Positive and negative results

16 papers: 12 positive, 4 negative or no effect

11 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

12 papers more in this group

See all 16 papers →

inoculation · growth · Vigna unguiculata (cowpea)Positive and negative results

102 papers: 92 positive, 10 negative or no effect

91 papers in the same direction as this paper · 8 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

98 papers more in this group

See all 102 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.