Abstract
Nitrogen fertilizer was applied on two popular peanut varieties to study the regulation effects of nitrogen on the polyamine metabolism, ethylene release rate and other physiological and biochemical criteria changes in peanut leaves. The results indicated that endogenous polyamines were related to the senescence of the leaves. Nitrogen application could raise the levels of endogenous polyamines, decrease the ethylene release rate, delay decomposition of chlorophyll and soluble protein, and elevate the activities of enzymes that could clear active oxygen. It was suggested that the mechanism of delayed senescence by nitrogen application might be related to polyamine metabolism.
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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 7
Claim · model-written summary
Endogenous polyamines were related to peanut leaf senescence.
- Taxon
- Peanut
Arachis hypogaeat0 - Organ / stage
- leavese0
- Compound
- endogenous polyaminese0
- Outcome
- senescence of the leavese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“endogenous polyamines were related to the senescence of the leaves.”
Claim · model-written summary
Nitrogen application raised endogenous polyamine levels.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Nitrogen applicatione0
- Outcome
- levels of endogenous polyaminese0
- Direction
- raisee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“Nitrogen application could raise the levels of endogenous polyamines, decrease the ethylene release rate, delay decomposition of chlorophyll and soluble protein, and elevate the activities of enzymes that could clear active oxygen.”
Claim · model-written summary
Nitrogen application decreased ethylene release rate.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Nitrogen applicatione0
- Outcome
- ethylene release ratee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“Nitrogen application could raise the levels of endogenous polyamines, decrease the ethylene release rate, delay decomposition of chlorophyll and soluble protein, and elevate the activities of enzymes that could clear active oxygen.”
Claim · model-written summary
Nitrogen application delayed chlorophyll decomposition.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Nitrogen applicatione0
- Outcome
- decomposition of chlorophylle0
- Direction
- delaye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“Nitrogen application could raise the levels of endogenous polyamines, decrease the ethylene release rate, delay decomposition of chlorophyll and soluble protein, and elevate the activities of enzymes that could clear active oxygen.”
Claim · model-written summary
Nitrogen application delayed soluble protein decomposition.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Nitrogen applicatione0
- Outcome
- soluble proteine0
- Direction
- delaye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“Nitrogen application could raise the levels of endogenous polyamines, decrease the ethylene release rate, delay decomposition of chlorophyll and soluble protein, and elevate the activities of enzymes that could clear active oxygen.”
Claim · model-written summary
Nitrogen application elevated activities of enzymes that clear active oxygen.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Nitrogen applicatione0
- Outcome
- activities of enzymes that could clear active oxygene0
- Direction
- elevatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“Nitrogen application could raise the levels of endogenous polyamines, decrease the ethylene release rate, delay decomposition of chlorophyll and soluble protein, and elevate the activities of enzymes that could clear active oxygen.”
Claim · model-written summary
The authors suggested that delayed senescence from nitrogen application might involve polyamine metabolism.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- nitrogen applicatione0
- Outcome
- delayed senescencee0
- Qualifier
- might be related to polyamine metabolisme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“the mechanism of delayed senescence by nitrogen application might be related to polyamine metabolism.”
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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.