Paper · 2023 · Agriculture Ecosystems & Environment

Durum wheat-lentil relay intercropping enhances soil mycorrhizal activity but does not alter structure of arbuscular mycorrhizal fungal community within roots

Gilbert Koskey; Luciano Avio; Alessandra Turrini; et al.

18
claims
26
verbatim quotes
17
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

In intercropping systems, crop species select host-adapted microorganisms and influence the associated plant-microbial interactions like in the case of arbuscular mycorrhizal fungi (AMF). Attempts to assess the impact of intercropping on the activity, diversity, and community composition of AMF remain inconclusive, more so in intercropping systems involving traditional Mediterranean crops such as durum wheat and lentils. We carried out field experiments in Central Italy to assess the impact of relay intercropping durum wheat (Triticum durum Desf. cv. Minosse) and lentil (Lens culinaris Medik. cv. Elsa) on soil mycorrhizal inoculum potential (MIP) (2019 and 2020), AMF root colonization (2019, 2020, and 2021), and root AMF diversity and community composition (2020 and 2021), compared to the respective sole crops. Results showed that relay intercropping enhanced lentil grain yield and durum wheat grain protein concentration but marginally reduced durum wheat grain yield and lentil grain protein concentration. In addition, relay intercropping enhanced soil mycorrhizal activity but differentially influenced mycorrhizal root colonization compared to sole cropping. Sequencing analyses generated a total of 234 amplicon sequence variants belonging to Glomeromycota, which were assigned to 31 virtual taxa using the MaarjAM reference database. Glomeraceae and Claroideoglomeraceae were the most abundant taxa but had contrasting abundances in 2020 and 2021. The overall changes in AMF species diversity and community structure were affected by the interaction between crop species and year, and not by intercropping. Claroideoglomus and Septoglomus showed a strong association with lentil roots while Rhizophagus and Paraglomus were associated with durum wheat roots in 2020, affirming host genotype-AMF preferences. The principal component analysis showed that grain protein concentration was associated with selected mycorrhizal parameters such as community richness and AMF root colonization. Further studies on the functional analysis of the different AMF communities selected by the crop genotype and year may reveal the importance of intercropping in maintaining soil functionality and productivity under low-input systems.

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Claims 18

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Relay intercropping enhanced lentil grain yield relative to sole cropping.

Taxon
lentilLens culinarise0
Treatment
relay intercroppinge0
Outcome
lentil grain yielde0
Direction
enhancede0
Comparator
respective sole cropse1

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Results showed that relay intercropping enhanced lentil grain yield and durum wheat grain protein concentration but marginally reduced durum wheat grain yield and lentil grain protein concentration.”

✓ located verbatim in the source · abstract, characters 823–1021 · show in text ↑
e1

“compared to the respective sole crops.”

✓ located verbatim in the source · abstract, characters 784–822 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Relay intercropping enhanced durum wheat grain protein concentration relative to sole cropping.

Treatment
relay intercroppinge0
Outcome
durum wheat grain protein concentratione0
Direction
enhancede0
Comparator
respective sole cropse1

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · TaxonSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Results showed that relay intercropping enhanced lentil grain yield and durum wheat grain protein concentration but marginally reduced durum wheat grain yield and lentil grain protein concentration.”

✓ located verbatim in the source · abstract, characters 823–1021 · show in text ↑
e1

“compared to the respective sole crops.”

✓ located verbatim in the source · abstract, characters 784–822 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Relay intercropping marginally reduced durum wheat grain yield relative to sole cropping.

Treatment
relay intercroppinge0
Outcome
durum wheat grain yielde0
Direction
reducede0
Qualifier
marginallye0
Comparator
respective sole cropse1

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · TaxonSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Results showed that relay intercropping enhanced lentil grain yield and durum wheat grain protein concentration but marginally reduced durum wheat grain yield and lentil grain protein concentration.”

✓ located verbatim in the source · abstract, characters 823–1021 · show in text ↑
e1

“compared to the respective sole crops.”

✓ located verbatim in the source · abstract, characters 784–822 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Relay intercropping marginally reduced lentil grain protein concentration relative to sole cropping.

Taxon
lentilLens culinarise0
Treatment
relay intercroppinge0
Outcome
lentil grain protein concentratione0
Direction
reducede0
Qualifier
marginallye0
Comparator
respective sole cropse1

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Results showed that relay intercropping enhanced lentil grain yield and durum wheat grain protein concentration but marginally reduced durum wheat grain yield and lentil grain protein concentration.”

✓ located verbatim in the source · abstract, characters 823–1021 · show in text ↑
e1

“compared to the respective sole crops.”

✓ located verbatim in the source · abstract, characters 784–822 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Relay intercropping enhanced soil mycorrhizal activity relative to sole cropping.

Taxon
AMFe1
Treatment
relay intercroppinge0
Outcome
soil mycorrhizal activitye0
Direction
enhancede0
Comparator
sole croppinge0

Verbatim

e0

“In addition, relay intercropping enhanced soil mycorrhizal activity but differentially influenced mycorrhizal root colonization compared to sole cropping.”

✓ located verbatim in the source · abstract, characters 1022–1176 · show in text ↑
e1

“arbuscular mycorrhizal fungi (AMF)”

✓ located verbatim in the source · abstract, characters 152–186 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Relay intercropping differentially influenced mycorrhizal root colonization relative to sole cropping.

Taxon
AMFe1
Treatment
relay intercroppinge0
Outcome
mycorrhizal root colonizatione0
Comparator
sole croppinge0

Not reportedDirection

Verbatim

e0

“In addition, relay intercropping enhanced soil mycorrhizal activity but differentially influenced mycorrhizal root colonization compared to sole cropping.”

✓ located verbatim in the source · abstract, characters 1022–1176 · show in text ↑
e1

“arbuscular mycorrhizal fungi (AMF)”

✓ located verbatim in the source · abstract, characters 152–186 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sequencing generated 234 Glomeromycota amplicon sequence variants.

Taxon
GlomeromycotaGlomeromycotae0
Outcome
amplicon sequence variantse0
Value
234e0

Not reportedDirection

Verbatim

e0

“Sequencing analyses generated a total of 234 amplicon sequence variants belonging to Glomeromycota, which were assigned to 31 virtual taxa using the MaarjAM reference database.”

✓ located verbatim in the source · abstract, characters 1177–1353 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The Glomeromycota sequence variants were assigned to 31 virtual taxa.

Taxon
GlomeromycotaGlomeromycotae0
Outcome
virtual taxae0
Value
31e0

Not reportedDirection

Verbatim

e0

“Sequencing analyses generated a total of 234 amplicon sequence variants belonging to Glomeromycota, which were assigned to 31 virtual taxa using the MaarjAM reference database.”

✓ located verbatim in the source · abstract, characters 1177–1353 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Glomeraceae was among the most abundant taxa, with contrasting abundances between years.

Taxon
GlomeraceaeGlomeraceaee0
Outcome
abundancese0
Direction
most abundante0
Qualifier
contrasting abundances in 2020 and 2021e0

Verbatim

e0

“Glomeraceae and Claroideoglomeraceae were the most abundant taxa but had contrasting abundances in 2020 and 2021.”

✓ located verbatim in the source · abstract, characters 1354–1467 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Claroideoglomeraceae was among the most abundant taxa, with contrasting abundances between years.

Taxon
ClaroideoglomeraceaeEntrophosporaceaee0
Outcome
abundancese0
Direction
most abundante0
Qualifier
contrasting abundances in 2020 and 2021e0

Verbatim

e0

“Glomeraceae and Claroideoglomeraceae were the most abundant taxa but had contrasting abundances in 2020 and 2021.”

✓ located verbatim in the source · abstract, characters 1354–1467 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

AMF diversity and community structure changes depended on the crop species by year interaction.

Taxon
AMFe0
Treatment
interaction between crop species and yeare0
Outcome
AMF species diversity and community structuree0

Not reportedDirection

Verbatim

e0

“The overall changes in AMF species diversity and community structure were affected by the interaction between crop species and year, and not by intercropping.”

✓ located verbatim in the source · abstract, characters 1468–1626 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Intercropping did not affect AMF diversity and community structure changes.

Taxon
AMFe0
Treatment
intercroppinge0
Outcome
AMF species diversity and community structuree0
Direction
no_changeinferrede0

Not reportedComparator

Verbatim

e0

“The overall changes in AMF species diversity and community structure were affected by the interaction between crop species and year, and not by intercropping.”

✓ located verbatim in the source · abstract, characters 1468–1626 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Claroideoglomus showed a strong association with lentil roots.

Taxon
ClaroideoglomusEntrophosporae0
Organ / stage
rootse0
Interactor
lentilLens culinarise0host
Outcome
associatione0
Qualifier
strong associatione0

Not reportedDirection

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

Lens culinaris
Lens culinaris · InteractorUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Claroideoglomus and Septoglomus showed a strong association with lentil roots while Rhizophagus and Paraglomus were associated with durum wheat roots in 2020, affirming host genotype-AMF preferences.”

✓ located verbatim in the source · abstract, characters 1627–1826 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Septoglomus showed a strong association with lentil roots.

Taxon
SeptoglomusSeptoglomuse0
Organ / stage
rootse0
Interactor
lentilLens culinarise0host
Outcome
associatione0
Qualifier
strong associatione0

Not reportedDirection

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

Lens culinaris
Lens culinaris · InteractorUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Claroideoglomus and Septoglomus showed a strong association with lentil roots while Rhizophagus and Paraglomus were associated with durum wheat roots in 2020, affirming host genotype-AMF preferences.”

✓ located verbatim in the source · abstract, characters 1627–1826 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Rhizophagus was associated with durum wheat roots in 2020.

Taxon
Rhizophaguse0
Organ / stage
rootse0
Interactor
durum wheatTriticum turgidum subsp. durume0host
Outcome
associated with durum wheat rootse0
Qualifier
2020e0

Not reportedDirection

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · InteractorSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Claroideoglomus and Septoglomus showed a strong association with lentil roots while Rhizophagus and Paraglomus were associated with durum wheat roots in 2020, affirming host genotype-AMF preferences.”

✓ located verbatim in the source · abstract, characters 1627–1826 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Paraglomus was associated with durum wheat roots in 2020.

Taxon
ParaglomusParaglomuse0
Organ / stage
rootse0
Interactor
durum wheatTriticum turgidum subsp. durume0host
Outcome
associated with durum wheat rootse0
Qualifier
2020e0

Not reportedDirection

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · InteractorSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Claroideoglomus and Septoglomus showed a strong association with lentil roots while Rhizophagus and Paraglomus were associated with durum wheat roots in 2020, affirming host genotype-AMF preferences.”

✓ located verbatim in the source · abstract, characters 1627–1826 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Grain protein concentration was associated with community richness and AMF root colonization.

Interactor
AMFe0symbiont
Outcome
grain protein concentratione0
Qualifier
community richness and AMF root colonizatione0

Not reportedDirection

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · TaxonSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The principal component analysis showed that grain protein concentration was associated with selected mycorrhizal parameters such as community richness and AMF root colonization.”

✓ located verbatim in the source · abstract, characters 1827–2005 · show in text ↑
e1

“durum wheat (Triticum durum Desf. cv. Minosse) and lentil (Lens culinaris Medik. cv. Elsa)”

✓ located verbatim in the source · abstract, characters 519–609 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Lentil grain protein concentration was associated with community richness and AMF root colonization.

Taxon
lentilLens culinarise1
Interactor
AMFe0symbiont
Outcome
grain protein concentratione0
Qualifier
community richness and AMF root colonizatione0

Not reportedDirection

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The principal component analysis showed that grain protein concentration was associated with selected mycorrhizal parameters such as community richness and AMF root colonization.”

✓ located verbatim in the source · abstract, characters 1827–2005 · show in text ↑
e1

“durum wheat (Triticum durum Desf. cv. Minosse) and lentil (Lens culinaris Medik. cv. Elsa)”

✓ located verbatim in the source · abstract, characters 519–609 · show in text ↑

intercropping · yield · Triticum turgidum (rivet wheat)Positive and negative results

9 papers: 7 positive, 2 negative or no effect

1 paper in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

intercropping · yield · Lens culinaris (lentil)Positive and negative results

34 papers: 23 positive, 11 negative or no effect

22 papers in the same direction as this paper · 11 in the opposite direction

  1. positive
  2. negative
  3. negative

30 papers more in this group

See all 34 papers →

intercropping · quality: protein · Triticum turgidum (rivet wheat)Results 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.