Abstract
Nitrogen status was examined in leaves of sour orange and rough lemon citrus rootstocks grown in a low phosphorus sand inoculated with Glomus etunicatus, in sand amended with superphosphate at a rate of 2240 kg ha−1, and in a sand control left untreated. Sour orange was 3.1- and 3.5-fold taller and rough lemon was 1.8- and 2.0-fold taller than the controls in the inoculated and phosphorus treatments, respectively. In the controls, leaf N was up to 2.5-fold higher than in the other treatments. Both total and free amino acids accumulated in leaves of both rootstocks to higher levels in the control than in the other treatments. Most total amino acids in the control were lower than in the treatments, with the exceptions of arginine (up to 12-fold increase), proline (up to 1.8-fold increase), lysine, and free ammonia. Twenty-two free amino acids, urea, and ammonia were detected. Both rootstocks grown in control sand had significant increases in citrulline, ornithine, lysine, histidine, arginine and ammonia. Levels of total and most free amino acids in the inoculated and phosphorus treatments were similar to one another. It is suggested that mineral deficiency caused by the absence of G. etunicatus causes a reorganization of N-metabolism with a shift to a greater synthesis of ornithine cycle intermediates.
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Claims 14
Claim · model-written summary
Inoculated sour orange was 3.1-fold taller than control.
- Taxon
- Sour orange
Citrus ×aurantiume0 - Treatment
- inoculatede0
- Outcome
- tallere0
- Direction
- tallere0
- Value
- 3.1-e0
- Comparator
- controlse0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sour orange was 3.1- and 3.5-fold taller and rough lemon was 1.8- and 2.0-fold taller than the controls in the inoculated and phosphorus treatments, respectively.”
Claim · model-written summary
Phosphorus-treated sour orange was 3.5-fold taller than control.
- Taxon
- Sour orangeCitrus ×aurantiume0
- Treatment
- phosphorus treatmentse0
- Outcome
- tallere0
- Direction
- tallere0
- Value
- 3.5-folde0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sour orange was 3.1- and 3.5-fold taller and rough lemon was 1.8- and 2.0-fold taller than the controls in the inoculated and phosphorus treatments, respectively.”
Claim · model-written summary
Inoculated rough lemon was 1.8-fold taller than control.
- Taxon
- rough lemon
.jpg?width=60)
Citrus jambhirie0 - Treatment
- inoculatede0
- Outcome
- tallere0
- Direction
- tallere0
- Value
- 1.8-e0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Sour orange was 3.1- and 3.5-fold taller and rough lemon was 1.8- and 2.0-fold taller than the controls in the inoculated and phosphorus treatments, respectively.”
Claim · model-written summary
Phosphorus-treated rough lemon was 2.0-fold taller than control.
- Taxon
- rough lemonCitrus jambhirie0
- Treatment
- phosphorus treatmentse0
- Outcome
- tallere0
- Direction
- tallere0
- Value
- 2.0-folde0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sour orange was 3.1- and 3.5-fold taller and rough lemon was 1.8- and 2.0-fold taller than the controls in the inoculated and phosphorus treatments, respectively.”
Claim · model-written summary
Control leaves had up to 2.5-fold higher nitrogen than treated leaves.
CitrusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the controls, leaf N was up to 2.5-fold higher than in the other treatments.”
t0“Citrus Rootstocks”
Claim · model-written summary
Total and free amino acids accumulated more in control leaves than treated leaves.
- Organ / stage
- leavese0
- Outcome
- total and free amino acidse0
- Direction
- highere0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both total and free amino acids accumulated in leaves of both rootstocks to higher levels in the control than in the other treatments.”
t0“Citrus Rootstocks”
Claim · model-written summary
Most total amino acids were lower in controls than treatments.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most total amino acids in the control were lower than in the treatments”
t0“Citrus Rootstocks”
Claim · model-written summary
Control arginine increased up to 12-fold.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“arginine (up to 12-fold increase)”
t0“Citrus Rootstocks”
Claim · model-written summary
Control proline increased up to 1.8-fold.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proline (up to 1.8-fold increase)”
t0“Citrus Rootstocks”
Claim · model-written summary
Twenty-two free amino acids, urea and ammonia were detected.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Twenty-two free amino acids, urea, and ammonia were detected.”
t0“Citrus Rootstocks”
Claim · model-written summary
Control-grown rootstocks had significant increases in citrulline, ornithine and lysine.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both rootstocks grown in control sand had significant increases in citrulline, ornithine, lysine, histidine, arginine and ammonia.”
t0“Citrus Rootstocks”
Claim · model-written summary
Control-grown rootstocks had significant increases in histidine, arginine and ammonia.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both rootstocks grown in control sand had significant increases in citrulline, ornithine, lysine, histidine, arginine and ammonia.”
t0“Citrus Rootstocks”
Claim · model-written summary
Total and most free amino acid levels were similar in inoculated and phosphorus treatments.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Levels of total and most free amino acids in the inoculated and phosphorus treatments were similar to one another.”
t0“Citrus Rootstocks”
Claim · model-written summary
Absence of mycorrhiza was suggested to reorganize nitrogen metabolism toward ornithine intermediates.
- Interactor
- G. etunicatuse0symbiont
- Outcome
- reorganization of N-metabolisme0
- Qualifier
- mineral deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is suggested that mineral deficiency caused by the absence of G. etunicatus causes a reorganization of N-metabolism with a shift to a greater synthesis of ornithine cycle intermediates.”
t0“Citrus Rootstocks”
The same questions in other papers
phosphorus · growth · Citrus jambhiri (rough lemon)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
phosphorus · growth · Citrus x aurantium (sour orange)Results agree
1 paper in the same direction as this paper
- positive
inoculation · growth · Citrus jambhiri (rough lemon)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
inoculation · growth · Citrus x aurantium (sour orange)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.