Abstract
Basmati rice (Oryza sativa L.) cultivars viz. PRH-10 (pusa rice hybrid-10) and PS-2 (Pusa Sugandh-2) were grown under two different day/night temperatures (31/24°C, 35/28°C) at ambient (370 μmol/mol) and elevated (550 μmol/mol) carbon dioxide (CO2) concentration, respectively, to characterize how an increase in CO2 and temperature affects rice photosynthesis and carbohydrate metabolism. At elevated CO2, the photosynthetic rates increased under both the temperature regimes, compared with plants grown at ambient CO2. The photosynthetic rate, sucrose-P synthase (SPS) activity and accumulation of soluble sugars and starch were higher in PRH-10 (pusa rice hybrid-10), compared to PS-2 (Pusa Sugandh-2). Elevated temperature decreased the photosynthetic rates both under ambient and elevated CO2 conditions. The SPS (sucrose-P synthase) activity and the accumulation of soluble sugars and starch were enhanced at elevated CO2 under both temperature regimes compared with plants grown at ambient CO2. The up-regulation of SPS (sucrose-P synthase) under elevated CO2 and temperature would be beneficial for growth and productivity of rice plants for the future climatic conditions.
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Claims 8
Claim · model-written summary
Elevated CO2 increased rice photosynthetic rates at both temperatures.
- Taxon
- rice
Oryza sativae0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At elevated CO2, the photosynthetic rates increased under both the temperature regimes, compared with plants grown at ambient CO2”
e1“rice (Oryza sativa L.)”
Claim · model-written summary
PRH-10 had higher photosynthetic rate than PS-2.
- Taxon
- riceOryza sativae0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The photosynthetic rate, sucrose-P synthase (SPS) activity and accumulation of soluble sugars and starch were higher in PRH-10 (pusa rice hybrid-10), compared to PS-2 (Pusa Sugandh-2)”
e1“rice (Oryza sativa L.)”
Claim · model-written summary
PRH-10 had higher sucrose-P synthase activity than PS-2.
- Taxon
- riceOryza sativae0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The photosynthetic rate, sucrose-P synthase (SPS) activity and accumulation of soluble sugars and starch were higher in PRH-10 (pusa rice hybrid-10), compared to PS-2 (Pusa Sugandh-2)”
e1“rice (Oryza sativa L.)”
Claim · model-written summary
PRH-10 accumulated more soluble sugars and starch than PS-2.
- Taxon
- riceOryza sativae0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulation of soluble sugars and starch were higher in PRH-10 (pusa rice hybrid-10), compared to PS-2 (Pusa Sugandh-2)”
e1“rice (Oryza sativa L.)”
Claim · model-written summary
Elevated temperature decreased rice photosynthetic rates at ambient and elevated CO2.
- Taxon
- riceOryza sativae0e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elevated temperature decreased the photosynthetic rates both under ambient and elevated CO2 conditions”
e1“rice (Oryza sativa L.)”
Claim · model-written summary
Elevated CO2 enhanced sucrose-P synthase activity at both temperatures.
- Taxon
- riceOryza sativae0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SPS (sucrose-P synthase) activity and the accumulation of soluble sugars and starch were enhanced at elevated CO2 under both temperature regimes compared with plants grown at ambient CO2”
e1“rice (Oryza sativa L.)”
Claim · model-written summary
Elevated CO2 enhanced accumulation of soluble sugars and starch at both temperatures.
- Taxon
- riceOryza sativae0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the accumulation of soluble sugars and starch were enhanced at elevated CO2 under both temperature regimes compared with plants grown at ambient CO2”
e1“rice (Oryza sativa L.)”
Claim · model-written summary
Authors interpret SPS up-regulation under elevated CO2 and temperature as beneficial for future rice growth and productivity.
- Taxon
- riceOryza sativae0
- Gene
- SPS (sucrose-P synthase)e0
- Outcome
- growth and productivitye0
- Qualifier
- future climatic conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The up-regulation of SPS (sucrose-P synthase) under elevated CO2 and temperature would be beneficial for growth and productivity of rice plants for the future climatic conditions”
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See all 62 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.