Abstract
Leaf nitrogen allocation and photosynthetic proteins response can affect net photosynthetic rate (Pn), ultimately influencing crop yield under diverse environmental stresses. However, the internal relationship between Pn with leaf nitrogen allocation and photosynthetic proteins response under nitrogen or water scarcity in peanut (Arachis hypogaea L.) remains elusive. Here, comprehensive physiological property and proteomic analyses of peanut were conducted, revealing that both nitrogen and water scarcity remarkably impeded leaf growth and reduced Pn. Nitrogen deficiency significantly reduced the total nitrogen content per unit leaf area (Narea), chlorophyll content, and Pn, whereas drought stress caused a greater decline in photosynthetic nitrogen use efficiency (PNUE). The allocation of leaf nitrogen to photosynthetic components, including the carboxylation system and electron transport system in leaves, was significantly reduced when subjected to individual or combined deficiency. Proteomic analyses exhibited that several key photosynthetic proteins underwent a decrease under both single and combined water and nitrogen deficiency conditions. Thereby, Pn may decline due to the disruption of nitrogen allocation and down-regulated expression of photosynthetic proteins under these stress conditions. Our findings establish a benchmark for future research exploring the roles of leaf nitrogen allocation and photosynthetic proteins in the plant’s response to nitrogen or water deficiency.
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Claims 11
Claim · model-written summary
Nitrogen scarcity impeded peanut leaf growth.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- nitrogene0
- Outcome
- leaf growthe0
- Direction
- impedede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both nitrogen and water scarcity remarkably impeded leaf growth and reduced Pn”
t0“peanut”
Claim · model-written summary
Water scarcity impeded peanut leaf growth.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- water scarcitye0
- Outcome
- leaf growthe0
- Direction
- impedede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both nitrogen and water scarcity remarkably impeded leaf growth and reduced Pn”
t0“peanut”
Claim · model-written summary
Nitrogen scarcity reduced net photosynthetic rate.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- nitrogene0
- Outcome
- Pne0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both nitrogen and water scarcity remarkably impeded leaf growth and reduced Pn”
t0“peanut”
Claim · model-written summary
Water scarcity reduced net photosynthetic rate.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- water scarcitye0
- Outcome
- Pne0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both nitrogen and water scarcity remarkably impeded leaf growth and reduced Pn”
t0“peanut”
Claim · model-written summary
Nitrogen deficiency significantly reduced leaf nitrogen content, chlorophyll content and Pn.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Nitrogen deficiencye0
- Outcome
- total nitrogen content per unit leaf area (Narea), chlorophyll content, and Pne0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen deficiency significantly reduced the total nitrogen content per unit leaf area (Narea), chlorophyll content, and Pn”
t0“peanut”
Claim · model-written summary
Drought caused a greater decline in photosynthetic nitrogen use efficiency.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- drought stresse0
- Outcome
- photosynthetic nitrogen use efficiency (PNUE)e0
- Direction
- greater declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress caused a greater decline in photosynthetic nitrogen use efficiency (PNUE)”
t0“peanut”
Claim · model-written summary
Individual deficiency reduced nitrogen allocation to leaf carboxylation and electron transport systems.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- individuale0
- Outcome
- allocation of leaf nitrogen to photosynthetic componentse0
- Direction
- reducede0
- Qualifier
- carboxylation system and electron transport system in leavese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The allocation of leaf nitrogen to photosynthetic components, including the carboxylation system and electron transport system in leaves, was significantly reduced when subjected to individual or combined deficiency”
t0“peanut”
Claim · model-written summary
Combined deficiency reduced nitrogen allocation to leaf carboxylation and electron transport systems.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- combined deficiencye0
- Outcome
- allocation of leaf nitrogen to photosynthetic componentse0
- Direction
- reducede0
- Qualifier
- carboxylation system and electron transport system in leavese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The allocation of leaf nitrogen to photosynthetic components, including the carboxylation system and electron transport system in leaves, was significantly reduced when subjected to individual or combined deficiency”
t0“peanut”
Claim · model-written summary
Photosynthetic proteins decreased under separate water and nitrogen deficiency.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- singlee0
- Outcome
- several key photosynthetic proteinse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“several key photosynthetic proteins underwent a decrease under both single and combined water and nitrogen deficiency conditions”
t0“peanut”
Claim · model-written summary
Photosynthetic proteins decreased under combined water and nitrogen deficiency.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- combined water and nitrogen deficiency conditionse0
- Outcome
- several key photosynthetic proteinse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“several key photosynthetic proteins underwent a decrease under both single and combined water and nitrogen deficiency conditions”
t0“peanut”
Claim · model-written summary
The authors propose that disrupted nitrogen allocation and lower photosynthetic protein expression may explain reduced Pn.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- Pne0
- Direction
- declinee0
- Qualifier
- disruption of nitrogen allocation and down-regulated expression of photosynthetic proteinse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pn may decline due to the disruption of nitrogen allocation and down-regulated expression of photosynthetic proteins under these stress conditions”
t0“peanut”
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See all 40 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.