Abstract
Recent studies have indicated that arbuscular mycorrhizal fungi (AMF) can influence decomposition of organic materials. However, the underlying mechanisms remain unclear. Here we investigated whether AMF influence the decomposition of leaf litters and change the associated litter bacterial and fungal communities and whether this effect is altered by the level of soil saline-alkali. A pot experiment was conducted using Trifolium repens as host plant without or with AMF (Funneliformis mosseae) and with two levels of soil saline-alkali (0 and 200 mmol/L). Litterbags with different mesh size were used to measure the effect of AMF on decomposition. Our study found that AMF significantly accelerated leaf litter decomposition under both non-saline-alkali and saline-alkali conditions. The composition of bacterial and fungal communities was also altered by AMF independent of soil saline-alkali conditions. For bacterial community, AMF increased the richness but not the diversity and increased the relative abundance of Firmicutes and Nitrospirota. For fungal community, the richness and diversity were higher in AMF than in non-AMF treatment. AMF significantly resulted in a decrease of the relative abundance of Ascomycota but an increase of the relative abundance of Basidiomycota, Chytridiomycota, Mortierellomycota and Rozellomycota. Structural equation modeling (SEM) showed that AMF increased leaf litter decomposition under saline-alkali conditions primarily by affecting bacterial community composition. Together, we show that AMF increase decomposition and alter the bacterial and fungal communities, and that these effects are not modulated by the level of soil saline-alkali.
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Claims 10
Claim · model-written summary
Mycorrhiza accelerated leaf litter decomposition under both soil conditions.
- Taxon
- Trifolium repens
Trifolium repense1 - Treatment
- AMFe0
- Interactor
- Funneliformis mosseae
Funneliformis mosseaee1symbiont - Outcome
- leaf litter decompositione0
- Direction
- acceleratede0
- Comparator
- without or with AMFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF significantly accelerated leaf litter decomposition under both non-saline-alkali and saline-alkali conditions”
e1“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
Mycorrhiza changed litter bacterial and fungal community composition across saline-alkali conditions.
- Taxon
- Trifolium repensTrifolium repense1
- Treatment
- AMFe0
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee1symbiont
- Outcome
- composition of bacterial and fungal communitiese0
- Direction
- alterede0
- Comparator
- without or with AMFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The composition of bacterial and fungal communities was also altered by AMF independent of soil saline-alkali conditions”
e1“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
Mycorrhiza increased litter bacterial richness.
- Taxon
- Trifolium repensTrifolium repense2
- Treatment
- AMFe0
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee2symbiont
- Outcome
- richnesse0
- Direction
- increasede0
- Comparator
- without or with AMFe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF increased the richness but not the diversity”
e1“For bacterial community”
e2“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
Mycorrhiza did not change litter bacterial diversity.
- Taxon
- Trifolium repensTrifolium repense2
- Treatment
- AMFe0
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee2symbiont
- Outcome
- diversitye0
- Direction
- not the diversitye0
- Comparator
- without or with AMFe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF increased the richness but not the diversity”
e1“For bacterial community”
e2“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
Mycorrhiza increased relative abundance of Firmicutes and Nitrospirota.
- Taxon
- Trifolium repensTrifolium repense1
- Treatment
- AMFe1
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee1symbiont
- Outcome
- relative abundance of Firmicutes and Nitrospirotae0
- Direction
- increasede0
- Comparator
- without or with AMFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the relative abundance of Firmicutes and Nitrospirota”
e1“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
Litter fungal richness and diversity were higher with mycorrhiza.
- Taxon
- Trifolium repensTrifolium repense1
- Treatment
- AMFe0
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee1symbiont
- Outcome
- richness and diversitye0
- Direction
- highere0
- Comparator
- non-AMF treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the richness and diversity were higher in AMF than in non-AMF treatment”
e1“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
Mycorrhiza decreased relative abundance of Ascomycota.
- Taxon
- Trifolium repensTrifolium repense1
- Treatment
- AMFe0
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee1symbiont
- Outcome
- relative abundance of Ascomycotae0
- Direction
- decreasee0
- Comparator
- without or with AMFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF significantly resulted in a decrease of the relative abundance of Ascomycota”
e1“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
Mycorrhiza increased relative abundance of Basidiomycota, Chytridiomycota and Mortierellomycota.
- Taxon
- Trifolium repensTrifolium repense1
- Treatment
- AMFe1
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee1symbiont
- Outcome
- relative abundance of Basidiomycota, Chytridiomycota, Mortierellomycotae0
- Direction
- increasee0
- Comparator
- without or with AMFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase of the relative abundance of Basidiomycota, Chytridiomycota, Mortierellomycota and Rozellomycota”
e1“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
Mycorrhiza increased relative abundance of Rozellomycota.
- Taxon
- Trifolium repensTrifolium repense1
- Treatment
- AMFe1
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee1symbiont
- Outcome
- relative abundance of Basidiomycota, Chytridiomycota, Mortierellomycota and Rozellomycotae0
- Direction
- increasee0
- Comparator
- without or with AMFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase of the relative abundance of Basidiomycota, Chytridiomycota, Mortierellomycota and Rozellomycota”
e1“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
Claim · model-written summary
A structural equation model attributed increased litter decomposition under saline-alkali conditions primarily to changed bacterial composition.
- Taxon
- Trifolium repensTrifolium repense1
- Treatment
- AMFe0
- Interactor
- Funneliformis mosseaeFunneliformis mosseaee1symbiont
- Outcome
- leaf litter decompositione0
- Qualifier
- primarily by affecting bacterial community compositione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF increased leaf litter decomposition under saline-alkali conditions primarily by affecting bacterial community composition”
e1“Trifolium repens as host plant without or with AMF (Funneliformis mosseae)”
The same questions in other papers
mycorrhiza · Funneliformis mosseae · Trifolium repens (white clover)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.