Abstract
Aluminum (Al) and phosphorus (P) interactions were investigated in mycorrhizal (M) and nonmycorrhizal (NM) highbush blueberry ( Vaccinium corymbosum L.) plantlets in a factorial experiment. The toxic effects of Al on highbush blueberry were characterized by decreased shoot, root, and total plant dry mass. Many of the negative effects of Al on plant root, shoot, and total dry matter production were reversed by foliar P and N application, indicating P or N uptake were limited by high Al concentration. However, Al-mediated growth reduction in P-stressed plants indicated that the restriction of P uptake by high Al may not have been the only mechanism for Al toxicity in this experiment. Root Al and P concentration were negatively correlated in NM but not M plantlets, suggesting mycorrhizal infection may alter P uptake processes. Al uptake was also affected by mycorrhizal infection, with more Al accumulating in M plantlet roots and leaves. Correlations among foliar ion concentrations were also affected by mycorrhizal fungal infection.
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Claims 6
Claim · model-written summary
Aluminum toxicity decreased shoot, root and total dry mass.
- Taxon
- highbush blueberry
Vaccinium corymbosume0 - Treatment
- Ale0
- Outcome
- shoot, root, and total plant dry masse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The toxic effects of Al on highbush blueberry were characterized by decreased shoot, root, and total plant dry mass.”
Claim · model-written summary
Foliar P and N reversed many aluminum effects on dry matter production.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Treatment
- foliar P and N applicatione0
- Outcome
- plant root, shoot, and total dry matter productione0
- Direction
- reversede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Many of the negative effects of Al on plant root, shoot, and total dry matter production were reversed by foliar P and N application”
t0“highbush blueberry”
Claim · model-written summary
Aluminum reduced growth even in P-stressed plants.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Treatment
- Ale0
- Outcome
- growthe0
- Direction
- reductione0
- Qualifier
- P-stressed plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al-mediated growth reduction in P-stressed plants”
t0“highbush blueberry”
Claim · model-written summary
Root Al and P concentrations were negatively correlated in nonmycorrhizal but not mycorrhizal plantlets.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Material
- NMe0
- Outcome
- Root Al and P concentratione0
- Direction
- negatively correlatede0
- Comparator
- M plantletse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root Al and P concentration were negatively correlated in NM but not M plantlets”
t0“highbush blueberry”
Claim · model-written summary
Mycorrhizal plantlets accumulated more Al in roots and leaves.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Interactor
- mycorrhizale0symbiont
- Outcome
- Al accumulating in M plantlet roots and leavese0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al uptake was also affected by mycorrhizal infection, with more Al accumulating in M plantlet roots and leaves.”
t0“highbush blueberry”
Claim · model-written summary
Mycorrhizal infection altered correlations among foliar ion concentrations.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Interactor
- mycorrhizal fungale0symbiont
- Outcome
- Correlations among foliar ion concentrationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Correlations among foliar ion concentrations were also affected by mycorrhizal fungal infection.”
t0“highbush blueberry”
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