Paper · 2013 · Microbes and Environments

Effect of Rice Cultivation Systems on Indigenous Arbuscular Mycorrhizal Fungal Community Structure

Nantida Watanarojanaporn; Nantakorn Boonkerd; Panlada Tittabutr; et al.

9
claims
11
verbatim quotes
74
citations
3
research areas
✓
Open access

Abstract

Arbuscular mycorrhizal fungi (AMF) in an agricultural ecosystem are necessary for proper management of beneficial symbiosis. Here we explored how the patterns of the AMF community in rice roots were affected by rice cultivation systems (the system of rice intensification [SRI] and the conventional rice cultivation system [CS]), and by compost application during growth stages. Rice plants harvested from SRI-managed plots exhibited considerably higher total biomass, root dry weight, and seed fill than those obtained from conventionally managed plots. Our findings revealed that all AMF sequences observed from CS plots belonged (only) to the genus Glomus, colonizing in rice roots grown under this type of cultivation, while rice roots sown in SRI showed sequences belonging to both Glomus and Acaulospora. The AMF community was compared between the different cultivation types (CS and SRI) and compost applications by principle component analysis. In all rice growth stages, AMF assemblages of CS management were not separated from those of SRI management. The distribution of AMF community composition based on T-RFLP data showed that the AMF community structure was different among four cultivation systems, and there was a gradual increase of Shannon-Weaver indices of diversity (H') of the AMF community under SRI during growth stages. The results of this research indicated that rice grown in SRI-managed plots had more diverse AMF communities than those grown in CS plots.

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Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI rice had higher total biomass than conventional rice.

Taxon
Rice plantsOryza sativae0
Treatment
SRI-managed plotse0
Outcome
total biomasse0
Direction
highere0
Comparator
conventionally managed plotse0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Rice plants harvested from SRI-managed plots exhibited considerably higher total biomass, root dry weight, and seed fill than those obtained from conventionally managed plots.”

✓ located verbatim in the source · abstract, characters 379–554 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI rice had higher root dry weight than conventional rice.

Taxon
Rice plantsOryza sativae0
Treatment
SRI-managed plotse0
Outcome
root dry weighte0
Direction
highere0
Comparator
conventionally managed plotse0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Rice plants harvested from SRI-managed plots exhibited considerably higher total biomass, root dry weight, and seed fill than those obtained from conventionally managed plots.”

✓ located verbatim in the source · abstract, characters 379–554 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI rice had higher seed fill than conventional rice.

Taxon
Rice plantsOryza sativae0
Treatment
SRI-managed plotse0
Outcome
seed fille0
Direction
highere0
Comparator
conventionally managed plotse0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Rice plants harvested from SRI-managed plots exhibited considerably higher total biomass, root dry weight, and seed fill than those obtained from conventionally managed plots.”

✓ located verbatim in the source · abstract, characters 379–554 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Only Glomus AMF sequences were observed in conventional rice roots.

Treatment
CS plotse0
Interactor
GlomusGlomuse0symbiont
Outcome
AMF sequences observed from CS plots belonged (only) to the genus Glomuse0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Glomus
Glomus · InteractorJerry Cooper · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“all AMF sequences observed from CS plots belonged (only) to the genus Glomus, colonizing in rice roots grown under this type of cultivation”

✓ located verbatim in the source · abstract, characters 582–721 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Both Glomus and Acaulospora sequences were found in SRI rice roots.

Treatment
SRIe0
Interactor
GlomusGlomuse0symbiont
Second interactor
AcaulosporaAcaulosporae0symbiont
Outcome
sequences belonging to both Glomus and Acaulosporae0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Glomus
Glomus · InteractorJerry Cooper · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“rice roots sown in SRI showed sequences belonging to both Glomus and Acaulospora.”

✓ located verbatim in the source · abstract, characters 729–810 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

AMF assemblages under conventional and SRI management were not separated at any growth stage.

Treatment
CS managemente0
Interactor
AMFe0symbiont
Outcome
AMF assemblagese0
Direction
not separatede0
Comparator
SRI managemente0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“In all rice growth stages, AMF assemblages of CS management were not separated from those of SRI management.”

✓ located verbatim in the source · abstract, characters 953–1061 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

AMF community structure differed among four cultivation systems.

Interactor
AMFe0symbiont
Outcome
AMF community structuree0
Direction
differente0

Not reportedTaxon

Verbatim

e0

“the AMF community structure was different among four cultivation systems”

✓ located verbatim in the source · abstract, characters 1141–1213 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 10–14 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AMF Shannon-Weaver diversity indices gradually increased under SRI across growth stages.

Treatment
SRIe0
Interactor
AMFe0symbiont
Outcome
Shannon-Weaver indices of diversity (H') of the AMF communitye0
Direction
gradual increasee0

Not reportedTaxon

Verbatim

e0

“there was a gradual increase of Shannon-Weaver indices of diversity (H') of the AMF community under SRI during growth stages.”

✓ located verbatim in the source · abstract, characters 1219–1344 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 10–14 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI rice had more diverse AMF communities than conventional rice.

Treatment
SRI-managed plotse0
Interactor
AMFe0symbiont
Outcome
AMF communitiese0
Direction
more diversee0
Comparator
CS plotse0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“rice grown in SRI-managed plots had more diverse AMF communities than those grown in CS plots.”

✓ located verbatim in the source · abstract, characters 1389–1483 · show in text ↑

irrigation · growth · Oryza sativa (rice)Positive and negative results

291 papers: 222 positive, 69 negative or no effect

221 papers in the same direction as this paper · 62 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

287 papers more in this group

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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.