Abstract
The effects of CO2 concentrations on photosynthetic characteristic and biochemical indices at the dwarf cowpea seedlings were studied in greenhouse of south China.The results show that,under different CO2 concentrations,the photosynthetic pigment content,soluble sugar content and soluble protein content increased to a different extent with the increase of CO2 concentrations.High CO2 concentrations could prominently increase the photosynthetic rate of cowpea,while decrease the transpiration rate compared with the control.Superoxide dismutase(SOD),peroxidase(POD),and catalse(CAT) varied remarkably under different CO2 concentrations.The maximum enzyme activities were observed at CO2 concentration 1200 mL/m3.The malondialdehyde(MDA) content decreased significantly in cowpea leaves at the higher concentrations of CO2.
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Claims 6
Claim · model-written summary
Increasing CO2 raised photosynthetic pigment, soluble sugar and soluble protein contents.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- CO2 concentrationse0
- Outcome
- photosynthetic pigment content,soluble sugar content and soluble protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the photosynthetic pigment content,soluble sugar content and soluble protein content increased to a different extent with the increase of CO2 concentrations”
t0“cowpea”
Claim · model-written summary
High CO2 raised photosynthetic rate compared with control.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- High CO2 concentrationse0
- Outcome
- photosynthetic ratee0
- Direction
- increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High CO2 concentrations could prominently increase the photosynthetic rate of cowpea,while decrease the transpiration rate compared with the control”
Claim · model-written summary
High CO2 decreased transpiration rate compared with control.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- High CO2 concentrationse0
- Outcome
- transpiration ratee0
- Direction
- decreasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High CO2 concentrations could prominently increase the photosynthetic rate of cowpea,while decrease the transpiration rate compared with the control”
Claim · model-written summary
SOD, POD and CAT activities varied across CO2 concentrations.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- different CO2 concentrationse0
- Outcome
- Superoxide dismutase(SOD),peroxidase(POD),and catalse(CAT)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Superoxide dismutase(SOD),peroxidase(POD),and catalse(CAT) varied remarkably under different CO2 concentrations”
t0“cowpea”
Claim · model-written summary
Enzyme activities peaked at 1200 mL/m3 CO2.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- CO2 concentration 1200 mL/m3e0
- Outcome
- enzyme activitiese0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum enzyme activities were observed at CO2 concentration 1200 mL/m3”
t0“cowpea”
Claim · model-written summary
High CO2 significantly reduced leaf malondialdehyde content.
- Taxon
- cowpeaVigna unguiculatae0
- Organ / stage
- leavese0
- Treatment
- higher concentrations of CO2e0
- Outcome
- malondialdehyde(MDA) contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The malondialdehyde(MDA) content decreased significantly in cowpea leaves at the higher concentrations of CO2”
The same questions in other papers
co2 · physiology: oxidative · Vigna unguiculata (cowpea)Results agree
1 paper in the same direction as this paper
- positive
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.