Paper · 2022 · Frontiers in Plant Science

Rhizospheric Bacillus-Facilitated Effects on the Growth and Competitive Ability of the Invasive Plant Ageratina adenophora

Ewei Du; Yaping Chen; Yahong Li; et al.

10
claims
14
verbatim quotes
29
citations
2
research areas
✓
Open access · cc-by

Abstract

The rhizospheric microbial community affects the population establishment of invasive plants in introduced areas, among which Bacillus has numerous functions in promoting plant growth. This study isolated and enriched the Bacillus community in the rhizospheric soil of the invasive plant Ageratina adenophora and the native accompanying plant Rabdosia amethystoides . The effects of these rhizospheric Bacillus communities on the growth and competition of A. adenophora and R. amethystoides were evaluated in pot experiments. The results showed that the number and diversity of Bacillus in the rhizospheric soil of A. adenophora were higher than those of R. amethystoides ( A. adenophora : 122 strains in soil, 16 Bacillus taxa; R. amethystoides : 88 strains in soil, 9 Bacillus taxa). After Bacillus inoculation of A. adenophora in a pot experiment, Bacillus idriensis , Bacillus toyonensis and Bacillus cereus were accumulated in the rhizospheric of A. adenophora , which significantly increased the nitrate nitrogen (NO 3 – -N) content in the soil and the total carbon and nitrogen concentrations in A. adenophora in the mixed treatment. The selective accumulation of Bacillus enhanced the competitive advantage of A. adenophora over the native accompanying plant; the corrected index of relative competition intensity of A . adenophora -inoculated Bacillus reached double that of the uninoculated treatment, and the growth of native plants was greatly suppressed under mixed planting. Our study confirmed that invasion of A. adenophora can lead to the accumulation of specific Bacillus taxa in the rhizospheric soil, which in turn can increase the competitive advantage of A. adenophora .

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 10

Observationobservedoriginal resultmeasured

Claim · model-written summary

Ageratina adenophora rhizosphere had more Bacillus strains than Rabdosia amethystoides rhizosphere.

Taxon
A. adenophoraAgeratina adenophorae0
Interactor
Bacilluse0other
Outcome
number and diversity of Bacilluse0
Direction
highere0
Value
122 strains in soile0
Comparator
R. amethystoidese0

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the number and diversity of Bacillus in the rhizospheric soil of A. adenophora were higher than those of R. amethystoides ( A. adenophora : 122 strains in soil, 16 Bacillus taxa; R. amethystoides : 88 strains in soil, 9 Bacillus taxa)”

✓ located verbatim in the source · abstract, characters 550–784 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Ageratina adenophora rhizosphere had more Bacillus taxa than Rabdosia amethystoides rhizosphere.

Taxon
A. adenophoraAgeratina adenophorae0
Interactor
Bacilluse0other
Outcome
diversity of Bacilluse0
Direction
highere0
Value
16 Bacillus taxae0
Comparator
R. amethystoidese0

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the number and diversity of Bacillus in the rhizospheric soil of A. adenophora were higher than those of R. amethystoides ( A. adenophora : 122 strains in soil, 16 Bacillus taxa; R. amethystoides : 88 strains in soil, 9 Bacillus taxa)”

✓ located verbatim in the source · abstract, characters 550–784 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Bacillus idriensis accumulated in inoculated Ageratina adenophora rhizosphere.

Taxon
A. adenophoraAgeratina adenophorae0
Treatment
Bacillus inoculatione0
Interactor
Bacillus idriensisMetabacillus idriensise0symbiont
Outcome
Bacillus idriensise0

Not reportedDirection

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“After Bacillus inoculation of A. adenophora in a pot experiment, Bacillus idriensis , Bacillus toyonensis and Bacillus cereus were accumulated in the rhizospheric of A. adenophora”

✓ located verbatim in the source · abstract, characters 786–965 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Bacillus toyonensis accumulated in inoculated Ageratina adenophora rhizosphere.

Taxon
A. adenophoraAgeratina adenophorae0
Treatment
Bacillus inoculatione0
Interactor
Bacillus toyonensisBacillus toyonensise0symbiont
Outcome
Bacillus toyonensise0

Not reportedDirection

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“After Bacillus inoculation of A. adenophora in a pot experiment, Bacillus idriensis , Bacillus toyonensis and Bacillus cereus were accumulated in the rhizospheric of A. adenophora”

✓ located verbatim in the source · abstract, characters 786–965 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Bacillus cereus accumulated in inoculated Ageratina adenophora rhizosphere.

Taxon
A. adenophoraAgeratina adenophorae0
Treatment
Bacillus inoculatione0
Interactor
Bacillus cereusBacillus cereuse0symbiont
Outcome
Bacillus cereuse0

Not reportedDirection

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗
Bacillus cereus
Bacillus cereus · InteractorMogana Das Murtey and Patchamuthu Ramasamy · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“After Bacillus inoculation of A. adenophora in a pot experiment, Bacillus idriensis , Bacillus toyonensis and Bacillus cereus were accumulated in the rhizospheric of A. adenophora”

✓ located verbatim in the source · abstract, characters 786–965 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation increased soil nitrate nitrogen significantly in mixed planting.

Taxon
A. adenophoraAgeratina adenophorae1
Treatment
Bacillus inoculatione1
Interactor
Bacilluse1symbiont
Outcome
nitrate nitrogen (NO 3 – -N) content in the soile0
Direction
increasede0
Qualifier
mixed treatmente0

Not reportedComparator

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“which significantly increased the nitrate nitrogen (NO 3 – -N) content in the soil and the total carbon and nitrogen concentrations in A. adenophora in the mixed treatment”

✓ located verbatim in the source · abstract, characters 968–1139 · show in text ↑
e1

“After Bacillus inoculation of A. adenophora in a pot experiment, Bacillus idriensis , Bacillus toyonensis and Bacillus cereus were accumulated”

✓ located verbatim in the source · abstract, characters 786–928 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation increased total carbon concentration in Ageratina adenophora in mixed planting.

Taxon
A. adenophoraAgeratina adenophorae0
Treatment
Bacillus inoculatione1
Interactor
Bacilluse1symbiont
Outcome
total carbone0
Direction
increasede0
Qualifier
mixed treatmente0

Not reportedComparator

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“which significantly increased the nitrate nitrogen (NO 3 – -N) content in the soil and the total carbon and nitrogen concentrations in A. adenophora in the mixed treatment”

✓ located verbatim in the source · abstract, characters 968–1139 · show in text ↑
e1

“After Bacillus inoculation of A. adenophora in a pot experiment”

✓ located verbatim in the source · abstract, characters 786–849 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation increased total nitrogen concentration in Ageratina adenophora in mixed planting.

Taxon
A. adenophoraAgeratina adenophorae0
Treatment
Bacillus inoculatione1
Interactor
Bacilluse1symbiont
Outcome
nitrogen concentrations in A. adenophorae0
Direction
increasede0
Qualifier
mixed treatmente0

Not reportedComparator

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“which significantly increased the nitrate nitrogen (NO 3 – -N) content in the soil and the total carbon and nitrogen concentrations in A. adenophora in the mixed treatment”

✓ located verbatim in the source · abstract, characters 968–1139 · show in text ↑
e1

“After Bacillus inoculation of A. adenophora in a pot experiment”

✓ located verbatim in the source · abstract, characters 786–849 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacillus accumulation doubled the relative competition index of Ageratina adenophora versus no inoculation.

Taxon
A . adenophoraAgeratina adenophorae0
Treatment
inoculated Bacilluse0
Interactor
Bacilluse0symbiont
Outcome
corrected index of relative competition intensitye0
Direction
doublee0
Value
doublee0
Comparator
uninoculated treatmente0

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

Ageratina adenophora
Ageratina adenophora · TaxonIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the corrected index of relative competition intensity of A . adenophora -inoculated Bacillus reached double that of the uninoculated treatment”

✓ located verbatim in the source · abstract, characters 1268–1410 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Native plant growth was greatly suppressed under mixed planting with inoculated Ageratina adenophora.

Taxon
R. amethystoidesIsodon amethystoidese1
Treatment
mixed plantinge0
Interactor
A. adenophoraAgeratina adenophorae1other
Outcome
growth of native plantse0
Direction
suppressede0

Not reportedComparator

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

Isodon amethystoides
Isodon amethystoides · Taxon阿橋 HQ · CC BY-SA 2.0 · Wikimedia Commons ↗
Ageratina adenophora
Ageratina adenophora · InteractorIxitixel · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the growth of native plants was greatly suppressed under mixed planting”

✓ located verbatim in the source · abstract, characters 1416–1487 · show in text ↑
e1

“The effects of these rhizospheric Bacillus communities on the growth and competition of A. adenophora and R. amethystoides were evaluated”

✓ located verbatim in the source · abstract, characters 368–505 · show in text ↑

inoculation · molecular: metabolites · Ageratina adenophoraResults agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

inoculation · nutrient: content · Ageratina adenophoraResults agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.