Abstract
'Neva' seedlings. It shows that these responses depend on nutrient concentrations and exhibit organ-specific patterns. Low P (0 mM) and sufficient N (15-30 mM) enhances plant height and aboveground biomass by promoting P acquisition processes. At moderate N levels (5-15 mM), P supply is sufficient (0.5-1.5 mM) for root and stem growth. Nitrogen application prioritizes aboveground biomass, reducing the root-to-shoot ratio. Root architecture also responds organ-specifically: sufficient N under low P promotes fine root growth to increase P absorption; under moderate P (0.5 mM), balanced N optimizes branching; and under sufficient P (1.5 mM), N increases root thickness while reducing fine root investment. In terms of P metabolism, moderate N under low P increases P concentrations by upregulating phosphate transporter genes, while sufficient N maintains P use efficiency (PUE). For N metabolism, added P under low N (0 mM) maintains N use efficiency (NUE), while higher N levels (15-30 mM) reduce NUE due to interference in nitrogen transport and enzyme activity. This study highlights the importance of organ-specific resource allocation in adapting to N-P interactions and suggests optimizing fertilization strategies based on soil nutrient status to avoid physiological imbalance.
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Claims 12
Claim · model-written summary
Low phosphorus and sufficient nitrogen enhanced height and aboveground biomass.
- Treatment
- Low P (0 mM) and sufficient N (15-30 mM)e0
- Outcome
- plant height and aboveground biomasse0
- Direction
- enhancese0
PopulusNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“Low P (0 mM) and sufficient N (15-30 mM) enhances plant height and aboveground biomass”
Claim · model-written summary
Moderate nitrogen with sufficient phosphorus supported root and stem growth.
- Treatment
- moderate N levels (5-15 mM), P supply is sufficient (0.5-1.5 mM)e0
- Outcome
- root and stem growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“At moderate N levels (5-15 mM), P supply is sufficient (0.5-1.5 mM) for root and stem growth”
Claim · model-written summary
Nitrogen application prioritized aboveground biomass and reduced root-to-shoot ratio.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“Nitrogen application prioritizes aboveground biomass, reducing the root-to-shoot ratio”
Claim · model-written summary
Sufficient nitrogen under low phosphorus promoted fine root growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“sufficient N under low P promotes fine root growth to increase P absorption”
Claim · model-written summary
Balanced nitrogen under moderate phosphorus optimized root branching.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“under moderate P (0.5 mM), balanced N optimizes branching”
Claim · model-written summary
Nitrogen under sufficient phosphorus increased root thickness.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“under sufficient P (1.5 mM), N increases root thickness while reducing fine root investment”
Claim · model-written summary
Nitrogen under sufficient phosphorus reduced fine root investment.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“under sufficient P (1.5 mM), N increases root thickness while reducing fine root investment”
Claim · model-written summary
Moderate nitrogen under low phosphorus increased phosphorus concentrations via phosphate transporter gene upregulation.
- Treatment
- moderate N under low Pe0
- Gene
- phosphate transporter genese0
- Outcome
- P concentrationse0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“moderate N under low P increases P concentrations by upregulating phosphate transporter genes”
Claim · model-written summary
Sufficient nitrogen maintained phosphorus use efficiency.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“sufficient N maintains P use efficiency (PUE)”
Claim · model-written summary
Added phosphorus under low nitrogen maintained nitrogen use efficiency.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“added P under low N (0 mM) maintains N use efficiency (NUE)”
Claim · model-written summary
Higher nitrogen levels reduced nitrogen use efficiency due to interference in transport and enzyme activity.
- Treatment
- higher N levels (15-30 mM)e0
- Outcome
- NUEe0
- Direction
- reducee0
- Qualifier
- interference in nitrogen transport and enzyme activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“higher N levels (15-30 mM) reduce NUE due to interference in nitrogen transport and enzyme activity”
Claim · model-written summary
The authors suggest optimizing fertilization by soil nutrient status.
- Outcome
- optimizing fertilization strategies based on soil nutrient statuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Poplar Seedlings”
e0“suggests optimizing fertilization strategies based on soil nutrient status to avoid physiological imbalance”
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See all 23 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.