Abstract
The capacities of two arbuscular mycorrhizal (AM) fungi, Glomus mosseae and Glomus versderme, tomineralize added organic P were studied in a sterilized calcareous soil. Mycorrhizal (inoculated with eitherof the AM fungi) and non-mycorrhizal red clover (Trghlium pmtense L.) plants were grown for eight weeksin pots with upper root, central hyphal and lower soil compartments. The hyphal and soil compartmentsreceived either organic P (as Na-phytate) or inorganic P (as KH2PO4) at tbe rate of 50 mg P kg-1. No P wasadded to the root compartments. Control pots received no added P. Yields were higher in mycorrhizal than innon-mycorrhizal clover. Mycorrhizal inoculation doubled shoot P concentration and more than doubled totalP uptake of plaflts in P-amended soil, irrespective of the form of applied P. The mycorrhizal contributionto inorganic P uptake was 80% or 76% in plants inoculated with G. mosseae or G. verefforme, respectively.Corresponding va1ues were 74% and 82% when Na-phytate was applied. In the root compartments of themycorrhizal treatments, the proportion of root length infected, hyphal length density and phosphatase activitywere all higher when organic P was applied than when inorganic P was added.
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Claims 8
Claim · model-written summary
Mycorrhizal clover had higher yields than non-mycorrhizal clover.
- Taxon
- red clover
Trifolium pratensee1 - Treatment
- mycorrhizale0
- Outcome
- Yieldse0
- Direction
- highere0
- Comparator
- innon-mycorrhizal clovere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields were higher in mycorrhizal than innon-mycorrhizal clover”
e1“red clover (Trghlium pmtense L.)”
Claim · model-written summary
Mycorrhizal inoculation doubled shoot phosphorus concentration.
- Taxon
- red cloverTrifolium pratensee1
- Treatment
- Mycorrhizal inoculatione0
- Outcome
- shoot P concentratione0
- Direction
- doublede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mycorrhizal inoculation doubled shoot P concentration”
e1“red clover (Trghlium pmtense L.)”
Claim · model-written summary
Mycorrhizal inoculation more than doubled total phosphorus uptake in amended soil.
- Taxon
- red cloverTrifolium pratensee2
- Treatment
- Mycorrhizal inoculatione1
- Outcome
- totalP uptakee0
- Direction
- more than doublede0
- Qualifier
- irrespective of the form of applied Pe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more than doubled totalP uptake of plaflts in P-amended soil, irrespective of the form of applied P”
e1“Mycorrhizal inoculation doubled”
e2“red clover (Trghlium pmtense L.)”
Claim · model-written summary
G. mosseae contributed 80% of inorganic phosphorus uptake.
- Taxon
- red cloverTrifolium pratensee1
- Interactor
- G. mosseae
Funneliformis mosseaee0symbiont - Outcome
- inorganic P uptakee0
- Value
- 80%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mycorrhizal contributionto inorganic P uptake was 80% or 76% in plants inoculated with G. mosseae or G. verefforme, respectively”
e1“red clover (Trghlium pmtense L.)”
Claim · model-written summary
G. verefforme contributed 76% of inorganic phosphorus uptake.
- Taxon
- red cloverTrifolium pratensee1
- Interactor
- G. verefformee0symbiont
- Outcome
- inorganic P uptakee0
- Value
- 76%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mycorrhizal contributionto inorganic P uptake was 80% or 76% in plants inoculated with G. mosseae or G. verefforme, respectively”
e1“red clover (Trghlium pmtense L.)”
Claim · model-written summary
With Na-phytate, the corresponding AM contribution for G. mosseae was 74%.
- Taxon
- red cloverTrifolium pratensee2
- Treatment
- Na-phytatee0
- Interactor
- G. mosseaeFunneliformis mosseaee1symbiont
- Outcome
- Corresponding va1uese0
- Value
- 74%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corresponding va1ues were 74% and 82% when Na-phytate was applied”
e1“G. mosseae or G. verefforme”
e2“red clover (Trghlium pmtense L.)”
Claim · model-written summary
With Na-phytate, the corresponding AM contribution for G. verefforme was 82%.
- Taxon
- red cloverTrifolium pratensee2
- Treatment
- Na-phytatee0
- Interactor
- G. verefformee1symbiont
- Outcome
- Corresponding va1uese0
- Value
- 82%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corresponding va1ues were 74% and 82% when Na-phytate was applied”
e1“G. mosseae or G. verefforme”
e2“red clover (Trghlium pmtense L.)”
Claim · model-written summary
Organic P increased root infection, hyphal density and phosphatase activity against inorganic P in mycorrhizal treatments.
- Taxon
- red cloverTrifolium pratensee1
- Treatment
- organic Pe0
- Outcome
- proportion of root length infected, hyphal length density and phosphatase activitye0
- Direction
- highere0
- Comparator
- inorganic Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the proportion of root length infected, hyphal length density and phosphatase activitywere all higher when organic P was applied than when inorganic P was added”
e1“red clover (Trghlium pmtense L.)”
The same questions in other papers
inoculation · nutrient: content · Trifolium pratense (red clover)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →mycorrhiza · nutrient: content · Trifolium pratense (red clover)Results agree
2 papers in the same direction as this paper
- positive
- positive
mycorrhiza · yield · Trifolium pratense (red clover)Results agree
3 papers in the same direction as this paper
- positive
- positive
- 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.