Abstract
Abstract Cucumber ( Cucumis sativus L.) plants accumulate more than pea ( Pisum sativum L.) plants. The differences in accumulation appear to be due to differences in the abilities of the two species to reduce in their roots. Only 2% of the reductase activity of cucumber was found in its roots, whereas nearly 92% of the activity was found in the blades. In pea, reductase activity was more evenly distributed throughout the plant;67% of the activity was in the blades, 18% in the roots, and the remainder in the stems and petioles. Nitrate-N comprised 80% of the N present in bleeding sap of roots of cucumber plants from which the shoots had been excised. In contrast, NO 3 -N constituted only 30% of the N in the sap from pea roots, the remaining 70% of the N consisting of amino acids and amides. Asparagine or aspartic acid was the major carrier of reduced N in pea, and glutamine was the major carrier in cucumber. The differences in N transport and assimilation appear to bear considerably on plant composition and efficiency of N usage.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Cucumber accumulated more than pea.
- Taxon
- Cucumber
Cucumis sativuse0 - Outcome
- accumulatee0
- Direction
- moree0
- Comparator
- peae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cucumber ( Cucumis sativus L.) plants accumulate more than pea ( Pisum sativum L.) plants”
Claim · model-written summary
Only 2% of cucumber reductase activity was in roots.
- Taxon
- cucumberCucumis sativuse0
- Organ / stage
- rootse0
- Outcome
- reductase activitye0
- Value
- 2%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only 2% of the reductase activity of cucumber was found in its roots”
Claim · model-written summary
Nearly 92% of cucumber reductase activity was in blades.
- Taxon
- CucumberCucumis sativust0
- Organ / stage
- bladese0
- Outcome
- activitye0
- Value
- 92%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nearly 92% of the activity was found in the blades”
t0“Cucumber”
Claim · model-written summary
Pea reductase activity was more evenly distributed.
- Taxon
- pea
Lathyrus oleraceuse0 - Outcome
- reductase activitye0
- Direction
- more evenly distributede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In pea, reductase activity was more evenly distributed throughout the plant”
Claim · model-written summary
Pea blades contained 67% of reductase activity.
- Taxon
- PeaLathyrus oleraceust0
- Organ / stage
- bladese0
- Outcome
- activitye0
- Value
- 67%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“67% of the activity was in the blades”
t0“Pea”
Claim · model-written summary
Pea roots contained 18% of reductase activity.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- rootse0
- Value
- 18%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“18% in the roots”
t0“Pea”
Claim · model-written summary
Cucumber root bleeding sap contained 80% nitrate nitrogen.
- Taxon
- cucumberCucumis sativuse0
- Organ / stage
- bleeding sap of rootse0
- Outcome
- Nitrate-Ne0
- Value
- 80%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate-N comprised 80% of the N present in bleeding sap of roots of cucumber plants from which the shoots had been excised”
Claim · model-written summary
Pea root sap contained 30% nitrate nitrogen.
- Taxon
- peaLathyrus oleraceuse0
- Organ / stage
- pea rootse0
- Outcome
- NO 3 -Ne0
- Value
- 30%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NO 3 -N constituted only 30% of the N in the sap from pea roots”
Claim · model-written summary
The remaining 70% of pea root sap nitrogen consisted of amino acids and amides.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- amino acids and amidese0
- Value
- 70%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“remaining 70% of the N consisting of amino acids and amides”
t0“Pea”
Claim · model-written summary
Asparagine or aspartic acid was the major reduced nitrogen carrier in pea.
- Taxon
- peaLathyrus oleraceuse0
- Outcome
- Asparagine or aspartic acide0
- Direction
- majore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Asparagine or aspartic acid was the major carrier of reduced N in pea”
Claim · model-written summary
Glutamine was the major reduced nitrogen carrier in cucumber.
- Taxon
- cucumberCucumis sativuse0
- Outcome
- glutaminee0
- Direction
- majore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glutamine was the major carrier in cucumber”
Claim · model-written summary
Differences in root reduction appear to explain nitrate accumulation differences.
- Taxon
- CucumberCucumis sativust0
- Outcome
- differences in accumulatione0
- Qualifier
- differences in the abilities of the two species to reduce in their rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“differences in accumulation appear to be due to differences in the abilities of the two species to reduce in their roots”
t0“Cucumber”
Claim · model-written summary
Differences in nitrogen transport and assimilation appear related to plant composition and nitrogen use efficiency.
- Taxon
- CucumberCucumis sativust0
- Outcome
- plant composition and efficiency of N usagee0
- Qualifier
- differences in N transport and assimilatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“differences in N transport and assimilation appear to bear considerably on plant composition and efficiency of N usage”
t0“Cucumber”