Paper · 2026 · Plant Physiology and Biochemistry

Amending metagenomic bacterial community in soybean-cultivated soils to enhance phytoestrogen in soybean roots by communicating with mixture of culturable rhizospheric bacteria

Du Yong Cho; Md Azizul Haque; Hee Yul Lee; et al.

12
claims
26
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

The amendment of metagenomic bacterial community in soybean-cultivated soils to enhance phytoestrogen levels in soybean roots through communicating with mixture of culturable rhizospheric bacteria (RB) were rarely studied. RB from soybean roots and soybean-cultivated soils were isolated and applied to soybean plants. Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR). Each group had a distinct influence on the metagenomic bacterial community of the soybean rhizosphere. The α-proteobacteria were the dominant class in all three groups, although SRR was enriched with Actinomycetes, Fimbriimonadia, and γ-proteobacteria, while SSR was enriched with Bacilli, Chitinophagia, and Gemmatimonadia classes. Additionally, at the significantly species level, SRR was enriched with Arthrobacter sp. and Azospirillum lipoferum, while SSR was enriched with Bradyrhizobium sp. and Rhizobium sp. Moreover, the RB treatment significantly affected the root metabolite composition. In the SSR-treated group, phenylalanine (18.80-47.81 mg/100 g) and tyrosine (8.03-21.98 mg/100 g) tended to be significantly enhanced. Additionally, secondary metabolites, such as isoflavones, total phenolics, and total flavonoids, were also significantly affected by the RB treatment; secondary metabolites were the highest in the SSR-treated group. These changes in metabolites also affected radical scavenging activities, with the SSR-treated group displaying significantly increased activities compared to the other groups. As a result, DPPH increased from 32.44 % to 47.21 % and ABTS from 53.41 % to 74.23 %. Therefore, RB treatment can influence the bacteria and root metabolite compositions within the soybean rhizosphere, revealing its potential applications in soybean productivity.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 12

Observationobservedoriginal resultmeasured

Claim · model-written summary

The α-proteobacteria were the dominant class in the rhizosphere of all three soybean groups.

Taxon
soybeanGlycine maxe0
Outcome
dominant classe2
Qualifier
α-proteobacteriae2

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e2

“The α-proteobacteria were the dominant class in all three groups, although SRR was enriched with Actinomycetes, Fimbriimonadia, and γ-proteobacteria, while SSR was enriched with Bacilli, Chitinophagia, and Gemmatimonadia classes”

✓ located verbatim in the source · abstract, characters 553–781 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The SRR treatment enriched Actinomycetes, Fimbriimonadia and γ-proteobacteria in the soybean rhizosphere.

Taxon
soybeanGlycine maxe0
Treatment
soybean root RB (SRR)e0
Outcome
Actinomycetes, Fimbriimonadia, and γ-proteobacteriae2
Direction
enrichede2

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e2

“The α-proteobacteria were the dominant class in all three groups, although SRR was enriched with Actinomycetes, Fimbriimonadia, and γ-proteobacteria, while SSR was enriched with Bacilli, Chitinophagia, and Gemmatimonadia classes”

✓ located verbatim in the source · abstract, characters 553–781 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The SSR treatment enriched Bacilli, Chitinophagia and Gemmatimonadia in the soybean rhizosphere.

Taxon
soybeanGlycine maxe0
Treatment
soybean-cultivated soil RB (SSR)e0
Outcome
Bacilli, Chitinophagia, and Gemmatimonadiae2
Direction
enrichede2

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e2

“The α-proteobacteria were the dominant class in all three groups, although SRR was enriched with Actinomycetes, Fimbriimonadia, and γ-proteobacteria, while SSR was enriched with Bacilli, Chitinophagia, and Gemmatimonadia classes”

✓ located verbatim in the source · abstract, characters 553–781 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The SRR treatment enriched Arthrobacter sp. and Azospirillum lipoferum at species level.

Taxon
soybeanGlycine maxe0
Treatment
soybean root RB (SRR)e0
Interactor
Arthrobacter sp.Arthrobactere3symbiont
Second interactor
Azospirillum lipoferumAzospirillum lipoferume3symbiont
Outcome
Arthrobacter sp. and Azospirillum lipoferume3
Direction
enrichede3

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Arthrobacter
Arthrobacter · Interactor · picture from its Wikimedia Commons categoryMicrobeteacher · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e3

“Additionally, at the significantly species level, SRR was enriched with Arthrobacter sp. and Azospirillum lipoferum, while SSR was enriched with Bradyrhizobium sp. and Rhizobium sp.”

✓ located verbatim in the source · abstract, characters 783–964 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The SSR treatment enriched Bradyrhizobium sp. and Rhizobium sp. at species level.

Taxon
soybeanGlycine maxe0
Treatment
soybean-cultivated soil RB (SSR)e0
Interactor
Bradyrhizobium sp.Bradyrhizobiume3symbiont
Second interactor
Rhizobium sp.Rhizobiume3symbiont
Outcome
Bradyrhizobium sp. and Rhizobium sp.e3
Direction
enrichede3

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Bradyrhizobium
Bradyrhizobium · Interactor · picture of the genus (one of its species)Louisa Howard - Dartmouth Electron Microscope Facility · Public domain · Wikimedia Commons ↗
Rhizobium
Rhizobium · Second interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e3

“Additionally, at the significantly species level, SRR was enriched with Arthrobacter sp. and Azospirillum lipoferum, while SSR was enriched with Bradyrhizobium sp. and Rhizobium sp.”

✓ located verbatim in the source · abstract, characters 783–964 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Phenylalanine in soybean roots was enhanced in the SSR-treated group.

Taxon
soybeanGlycine maxe0
Treatment
SSR-treated groupe5
Outcome
phenylalaninee5
Direction
enhancede5
Value
18.80-47.81 mg/100 ge5

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e5

“In the SSR-treated group, phenylalanine (18.80-47.81 mg/100 g) and tyrosine (8.03-21.98 mg/100 g) tended to be significantly enhanced”

✓ located verbatim in the source · abstract, characters 1048–1181 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Tyrosine in soybean roots was enhanced in the SSR-treated group.

Taxon
soybeanGlycine maxe0
Treatment
SSR-treated groupe5
Outcome
tyrosinee5
Direction
enhancede5
Value
8.03-21.98 mg/100 ge5

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e5

“In the SSR-treated group, phenylalanine (18.80-47.81 mg/100 g) and tyrosine (8.03-21.98 mg/100 g) tended to be significantly enhanced”

✓ located verbatim in the source · abstract, characters 1048–1181 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The RB treatment significantly affected isoflavones, total phenolics and total flavonoids in soybean roots.

Taxon
soybeanGlycine maxe0
Treatment
RB treatmente6
Outcome
isoflavones, total phenolics, and total flavonoidse6

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e6

“Additionally, secondary metabolites, such as isoflavones, total phenolics, and total flavonoids, were also significantly affected by the RB treatment; secondary metabolites were the highest in the SSR-treated group”

✓ located verbatim in the source · abstract, characters 1183–1397 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Secondary metabolites in soybean roots were highest in the SSR-treated group.

Taxon
soybeanGlycine maxe0
Treatment
SSR-treated groupe6
Outcome
secondary metabolitese6
Direction
the higheste6

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e6

“Additionally, secondary metabolites, such as isoflavones, total phenolics, and total flavonoids, were also significantly affected by the RB treatment; secondary metabolites were the highest in the SSR-treated group”

✓ located verbatim in the source · abstract, characters 1183–1397 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Radical scavenging activities were significantly increased in the SSR-treated group compared with the other groups.

Taxon
soybeanGlycine maxe0
Treatment
SSR-treated groupe1
Outcome
radical scavenging activitiese1
Direction
significantly increasede1
Comparator
other groupse1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e1

“These changes in metabolites also affected radical scavenging activities, with the SSR-treated group displaying significantly increased activities compared to the other groups”

✓ located verbatim in the source · abstract, characters 1399–1574 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

DPPH radical scavenging increased to 47.21 % after the RB treatment.

Taxon
soybeanGlycine maxe0
Treatment
RB treatmente6
Outcome
DPPHe7
Direction
increasede7
Value
47.21 %e7
Qualifier
from 32.44 %e7

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e6

“Additionally, secondary metabolites, such as isoflavones, total phenolics, and total flavonoids, were also significantly affected by the RB treatment; secondary metabolites were the highest in the SSR-treated group”

✓ located verbatim in the source · abstract, characters 1183–1397 · show in text ↑
e7

“As a result, DPPH increased from 32.44 % to 47.21 % and ABTS from 53.41 % to 74.23 %”

✓ located verbatim in the source · abstract, characters 1576–1660 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABTS radical scavenging increased to 74.23 % after the RB treatment.

Taxon
soybeanGlycine maxe0
Treatment
RB treatmente6
Outcome
ABTSe7
Direction
increasede7
Value
74.23 %e7
Qualifier
from 53.41 %e7

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Treated soybean plants were divided into three groups: control (CTL), soybean root RB (SRR), and soybean-cultivated soil RB (SSR)”

✓ located verbatim in the source · abstract, characters 319–448 · show in text ↑
e6

“Additionally, secondary metabolites, such as isoflavones, total phenolics, and total flavonoids, were also significantly affected by the RB treatment; secondary metabolites were the highest in the SSR-treated group”

✓ located verbatim in the source · abstract, characters 1183–1397 · show in text ↑
e7

“As a result, DPPH increased from 32.44 % to 47.21 % and ABTS from 53.41 % to 74.23 %”

✓ located verbatim in the source · abstract, characters 1576–1660 · show in text ↑

inoculation · quality: phytochemicals · Glycine max (soybean)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

6 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

4 papers more in this group

See all 8 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.