Abstract
The effects of a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants were studied. Deficiency effects were more marked in shoot and root tissues at the l/9th level of the element than at the l/3rd level with respect to both the content and incorporation of 32P in nucleic acids. The effects were marked on the 43rd day; the plants had recovered considerably by the 68th day, but a marked decline was observed again on the 97th day at the time of flowering. The decrease in 32P incorporation was evident both on a per plant and a per unit weight basis, but it was more prominent in the former. Although 32P uptake was reduced, this reduction was less than that of 32P incorporation in the nucleic acids. Separation of the RNA fractions revealed that all the fractions were affected. Deficiency effects also enhanced DNase activity, particularly when there was a K deficiency, but RNase activity was little affected.
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Claims 9
Claim · model-written summary
In TN-1 rice, N, P or K deficiency effects on the content and incorporation of 32P in nucleic acids in shoot and root tissues were more marked at the l/9th level of the element than at the l/3rd level.
- Taxon
- rice
Oryza sativae0 - Material
- TN-1e0
- Organ / stage
- shoot and root tissuese1
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- content and incorporation of 32P in nucleic acidse1
- Direction
- more markede1
- Comparator
- l/3rd levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“Deficiency effects were more marked in shoot and root tissues at the l/9th level of the element than at the l/3rd level with respect to both the content and incorporation of 32P in nucleic acids”
Claim · model-written summary
Deficiency effects on 32P incorporation were marked on the 43rd day.
- Taxon
- riceOryza sativae0
- Material
- TN-1e0
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- 32P incorporatione0
- Qualifier
- 43rd daye1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“The effects were marked on the 43rd day”
Claim · model-written summary
The deficient plants had recovered considerably by the 68th day.
- Taxon
- riceOryza sativae0
- Material
- TN-1e0
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- 32P incorporatione0
- Direction
- recovered considerablye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“the plants had recovered considerably by the 68th day”
Claim · model-written summary
A marked decline in 32P incorporation was observed again on the 97th day, at the time of flowering.
- Taxon
- riceOryza sativae0
- Material
- TN-1e0
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- 32P incorporatione0
- Direction
- declinee1
- Qualifier
- at the time of floweringe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“a marked decline was observed again on the 97th day at the time of flowering”
Claim · model-written summary
The decrease in 32P incorporation was evident both per plant and per unit weight, and was more prominent per plant.
- Taxon
- riceOryza sativae0
- Material
- TN-1e0
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- 32P incorporatione1
- Direction
- decreasee1
- Qualifier
- more prominent in the formere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“The decrease in 32P incorporation was evident both on a per plant and a per unit weight basis, but it was more prominent in the former”
Claim · model-written summary
32P uptake was reduced, but less than 32P incorporation into nucleic acids.
- Taxon
- riceOryza sativae0
- Material
- TN-1e0
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- 32P uptakee1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“Although 32P uptake was reduced, this reduction was less than that of 32P incorporation in the nucleic acids”
Claim · model-written summary
All the RNA fractions were affected by the deficiencies.
- Taxon
- riceOryza sativae0
- Material
- TN-1e0
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- RNA fractionse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“Separation of the RNA fractions revealed that all the fractions were affected”
Claim · model-written summary
Deficiency enhanced DNase activity, particularly under K deficiency.
- Taxon
- riceOryza sativae0
- Material
- TN-1e0
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- DNase activitye1
- Direction
- enhancede1
- Qualifier
- particularly when there was a K deficiencye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“Deficiency effects also enhanced DNase activity, particularly when there was a K deficiency”
Claim · model-written summary
RNase activity was little affected by the deficiencies.
- Taxon
- riceOryza sativae0
- Material
- TN-1e0
- Treatment
- a deficiency of N, P or Ke0
- Outcome
- RNase activitye1
- Direction
- little affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a deficiency of N, P or K on DNA and RNA synthesis as evidenced by 32P incorporation in TN-1 rice plants”
e1“RNase activity was little affected”
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