Abstract
Interactions between arbuscular mycorrhizal fungi (AMF) and soil microbial communities that support plant nutrient acquisition remain poorly understood. Here, we investigate how the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms. Using metatranscriptomic profiling alongside 16S rRNA and ITS amplicon sequencing, we show that AMF alter bacterial gene expression without shifting community composition and significantly increase fungal richness and evenness. We identify genotype-specific effects of AMF on microbial diversity and function and find that AMF colonisation stimulates microbial B-vitamin biosynthesis. We also link elevated plant leaf phosphorus levels under AMF colonisation with changes in root gene expression and increased abundance of AMF-stimulated rhizosphere bacterial taxa. These findings highlight the importance of feedback loops between plant, AMF and soil microorganisms and show how these interactions can contribute to increases in plant nutrient uptake. It is hoped these results will be useful for sustainable crop production and ecosystem regeneration through microbiome-informed management strategies.
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Claims 8
Claim · model-written summary
AMF altered bacterial gene expression in maize mesocosms.
- Treatment
- AMFe1
- Interactor
- Rhizophagus irregularis
Rhizophagus irregularise0symbiont - Outcome
- bacterial gene expressione1
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms”
e1“AMF alter bacterial gene expression without shifting community composition”
Claim · model-written summary
AMF did not shift bacterial community composition in maize mesocosms.
- Treatment
- AMFe1
- Interactor
- Rhizophagus irregularisRhizophagus irregularise0symbiont
- Outcome
- community compositione1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms”
e1“AMF alter bacterial gene expression without shifting community composition”
Claim · model-written summary
AMF significantly increased fungal richness and evenness in maize mesocosms.
- Treatment
- AMFe2
- Interactor
- Rhizophagus irregularisRhizophagus irregularise0symbiont
- Outcome
- fungal richness and evennesse2
- Direction
- increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms”
e2“we show that AMF alter bacterial gene expression without shifting community composition and significantly increase fungal richness and evenness”
Claim · model-written summary
AMF effects on microbial diversity and function were genotype-specific in maize.
- Treatment
- AMFe3
- Interactor
- AMFe3symbiont
- Outcome
- microbial diversity and functione3
- Qualifier
- genotype-specifice3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms”
e3“We identify genotype-specific effects of AMF on microbial diversity and function”
Claim · model-written summary
AMF colonisation stimulated microbial B-vitamin biosynthesis in maize rhizosphere.
- Treatment
- AMF colonisatione4
- Interactor
- AMFe4symbiont
- Outcome
- B-vitamin biosynthesise4
- Direction
- stimulatese4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms”
e4“find that AMF colonisation stimulates microbial B-vitamin biosynthesis”
Claim · model-written summary
Elevated plant leaf phosphorus levels were linked with AMF colonisation in maize.
- Organ / stage
- plant leafe5
- Treatment
- AMF colonisatione5
- Outcome
- plant leaf phosphorus levelse5
- Direction
- elevatede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms”
e5“We also link elevated plant leaf phosphorus levels under AMF colonisation”
Claim · model-written summary
Root gene expression changed in association with AMF colonisation in maize.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms”
e5“We also link elevated plant leaf phosphorus levels under AMF colonisation”
e6“with changes in root gene expression”
Claim · model-written summary
AMF-stimulated rhizosphere bacterial taxa increased in abundance with AMF colonisation in maize.
- Treatment
- AMF colonisatione5
- Outcome
- abundance of AMF-stimulated rhizosphere bacterial taxae7
- Direction
- increasede7
- Setting
- rhizospheree7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the model AMF species Rhizophagus irregularis influences microbial mRNA transcription and microbial taxonomic composition in rhizosphere and bulk soil compartments of Zea mays mesocosms”
e5“We also link elevated plant leaf phosphorus levels under AMF colonisation”
e7“increased abundance of AMF-stimulated rhizosphere bacterial taxa”
The same questions in other papers
mycorrhiza · Rhizophagus irregularis · Zea mays (maize)Positive and negative results
8 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 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.