Abstract
The effects of Stay-green rice gene(SGR) over-expression and mutation on carbon and nitrogen metabolism in rice(Oryza sativa L.) leaves were studied by using hydroponic culture.The results showed that SGR over-expression reduced contents of soluble protein,chlorophyll and starch,but the contents of soluble sugar and free amino acids increased,as well as the activities of glutamine synthetase(GS) and glutamate synthetase(GOGAT) in rice leaves under normal growth condition.Whereas,SGR mutation increased the contents of starch and soluble protein and improved nitrate reductase(NR) activity.Under nitrogen deficiency,the variation trend of physiological parameters was consistent among the three types of rice except the starch content in SGR mutant rice leaves.These suggested that the changes in SGR level could influence the carbon and nitrogen metabolism in rice leaves.
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Claims 6
Claim · model-written summary
SGR overexpression reduced soluble protein, chlorophyll and starch in rice leaves.
- Taxon
- rice
Oryza sativat0 - Treatment
- SGR over-expressione0
- Gene
- SGRe0
- Outcome
- contents of soluble protein,chlorophyll and starche0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SGR over-expression reduced contents of soluble protein,chlorophyll and starch”
t0“in Rice Leaves”
Claim · model-written summary
SGR overexpression increased soluble sugar and free amino acids.
- Taxon
- riceOryza sativat0
- Treatment
- SGR over-expressione0
- Outcome
- contents of soluble sugar and free amino acidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SGR over-expression reduced contents of soluble protein,chlorophyll and starch,but the contents of soluble sugar and free amino acids increased”
t0“in Rice Leaves”
Claim · model-written summary
SGR overexpression increased glutamine synthetase and glutamate synthetase activities.
- Taxon
- riceOryza sativae0
- Treatment
- SGR over-expressione0
- Outcome
- activities of glutamine synthetase(GS) and glutamate synthetase(GOGAT)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SGR over-expression reduced contents of soluble protein,chlorophyll and starch,but the contents of soluble sugar and free amino acids increased,as well as the activities of glutamine synthetase(GS) and glutamate synthetase(GOGAT) in rice leaves under normal growth condition.”
Claim · model-written summary
SGR mutation increased starch and soluble protein contents.
- Taxon
- riceOryza sativat0
- Treatment
- SGR mutatione0
- Outcome
- contents of starch and soluble proteine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SGR mutation increased the contents of starch and soluble protein”
t0“in Rice Leaves”
Claim · model-written summary
SGR mutation improved nitrate reductase activity.
- Taxon
- riceOryza sativat0
- Treatment
- SGR mutatione0
- Outcome
- nitrate reductase(NR) activitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SGR mutation increased the contents of starch and soluble protein and improved nitrate reductase(NR) activity.”
t0“in Rice Leaves”
Claim · model-written summary
Under nitrogen deficiency, physiological trends were consistent across three rice types except mutant starch.
- Taxon
- riceOryza sativae0
- Outcome
- variation trend of physiological parameterse0
- Qualifier
- except the starch content in SGR mutant rice leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under nitrogen deficiency,the variation trend of physiological parameters was consistent among the three types of rice except the starch content in SGR mutant rice leaves.”
The same questions in other papers
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- negative
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2 papers in the same direction as this paper · 6 in the opposite direction
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5 papers more in this group
See all 9 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.