Abstract
Plants of different types of rice varieties, Sasanishiki and Kamenoo, were grown in pots with different levels of nitrogen, and the mesophyll structural changes of leaves were observed. In Kamenoo, the typical panicle weight type, the ratio of the mesophyll surface area to the leaf area (MS/LA) and the number of protuberances developed by each mesophyll cell were decreased by application of nitrogen. In Sasanishiki, the typical panicle number type, these structural changes of the mesophyll were not so remarkable as those in Kamenoo. In longitudinal sections of both varieties, the intercellular spaces area in the mesophyll was increased in proportion to the amount of applied nitrogen. So far as the unit leaf area was concerned, the number of mesophyll cells was decreased by application of nitrogen. Flowever, the total cell surface area was hardly reduced because of increase in surface area of each mesophyll cell, and this trend was more evident in Sasanishiki than in Kamenoo. From the results of this experiment, it was suggested that the application of nitrogen might bring about a favourable structure for gaseous diffusion in the mesophyll.
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Claims 8
Claim · model-written summary
Nitrogen application decreased mesophyll surface area relative to leaf area in Kamenoo.
- Taxon
- rice
Oryza sativat0 - Material
- Kamenooe0
- Treatment
- application of nitrogene0
- Outcome
- ratio of the mesophyll surface area to the leaf area (MS/LA)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Kamenoo, the typical panicle weight type, the ratio of the mesophyll surface area to the leaf area (MS/LA) and the number of protuberances developed by each mesophyll cell were decreased by application of nitrogen.”
t0“rice varieties”
Claim · model-written summary
Nitrogen application decreased the number of protuberances per mesophyll cell in Kamenoo.
- Taxon
- riceOryza sativat0
- Material
- Kamenooe0
- Treatment
- application of nitrogene0
- Outcome
- number of protuberances developed by each mesophyll celle0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Kamenoo, the typical panicle weight type, the ratio of the mesophyll surface area to the leaf area (MS/LA) and the number of protuberances developed by each mesophyll cell were decreased by application of nitrogen.”
t0“rice varieties”
Claim · model-written summary
The nitrogen related mesophyll structural changes were less marked in Sasanishiki than in Kamenoo.
- Taxon
- riceOryza sativat0
- Material
- Sasanishikie0
- Outcome
- structural changes of the mesophylle0
- Direction
- not so remarkablee0
- Comparator
- Kamenooe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Sasanishiki, the typical panicle number type, these structural changes of the mesophyll were not so remarkable as those in Kamenoo.”
t0“rice varieties”
Claim · model-written summary
Intercellular space area in the mesophyll increased with applied nitrogen in both varieties.
- Taxon
- riceOryza sativat0
- Treatment
- applied nitrogene0
- Outcome
- intercellular spaces area in the mesophylle0
- Direction
- increasede0
- Qualifier
- both varietiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In longitudinal sections of both varieties, the intercellular spaces area in the mesophyll was increased in proportion to the amount of applied nitrogen.”
t0“rice varieties”
Claim · model-written summary
Nitrogen application decreased mesophyll cell number per unit leaf area.
- Taxon
- riceOryza sativat0
- Treatment
- application of nitrogene0
- Outcome
- number of mesophyll cellse0
- Direction
- decreasede0
- Qualifier
- unit leaf areae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“So far as the unit leaf area was concerned, the number of mesophyll cells was decreased by application of nitrogen.”
t0“rice varieties”
Claim · model-written summary
Total cell surface area was hardly reduced under nitrogen application.
- Taxon
- riceOryza sativat0
- Treatment
- application of nitrogene1
- Outcome
- total cell surface areae0
- Direction
- hardly reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flowever, the total cell surface area was hardly reduced because of increase in surface area of each mesophyll cell”
e1“number of mesophyll cells was decreased by application of nitrogen.”
t0“rice varieties”
Claim · model-written summary
Surface area of each mesophyll cell increased, more evidently in Sasanishiki than Kamenoo.
- Taxon
- riceOryza sativat0
- Material
- Sasanishikie0
- Outcome
- surface area of each mesophyll celle0
- Direction
- increasee0
- Comparator
- Kamenooe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in surface area of each mesophyll cell, and this trend was more evident in Sasanishiki than in Kamenoo.”
t0“rice varieties”
Claim · model-written summary
The authors suggest nitrogen application may favor mesophyll structure for gas diffusion.
- Taxon
- riceOryza sativat0
- Treatment
- application of nitrogene0
- Outcome
- favourable structure for gaseous diffusion in the mesophylle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of nitrogen might bring about a favourable structure for gaseous diffusion in the mesophyll.”
t0“rice varieties”
The same questions in other papers
nitrogen · growth · Oryza sativa (rice)Positive and negative results
108 papers in the same direction as this paper · 402 in the opposite direction
- positive
- positive
- positive
507 papers more in this group
See all 511 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.