Abstract
Under the doubled CO_2 concentration (700 μmol·mol~(-1)),five different doses of UV-B radiation was given to tomato(Lycopersicon esculentum Mill.) in winter plastic greenhouse. The influences on photosynthesis and SOD,POD,CAT activity of tomato were investigated. The results showed that doubled CO_2 concentration increased the leaf chlorophyll content, enhanced the Pn and the activity of antioxidative enzymes. Under the doubled CO_2 concentration, low doses of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))could stimulate the increasing of leaf chlorphyll content and enhancing the activity of antioxidative enzymes. High dose of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))decreased the leaf chlorophyll content and Pn, inhibited the activity of antioxidative enzymes, made stress to tomato plant. Doubled CO_2 concentration could reduce this inhibition.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Doubled CO2 increased tomato leaf chlorophyll content and photosynthetic rate.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- doubled CO_2 concentratione0
- Outcome
- leaf chlorophyll content, enhanced the Pne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“doubled CO_2 concentration increased the leaf chlorophyll content, enhanced the Pn”
e1“tomato(Lycopersicon esculentum Mill.)”
Claim · model-written summary
Doubled CO2 enhanced antioxidant enzyme activity in tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- doubled CO_2 concentratione0
- Outcome
- activity of antioxidative enzymese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“doubled CO_2 concentration increased the leaf chlorophyll content, enhanced the Pn and the activity of antioxidative enzymes”
e1“tomato(Lycopersicon esculentum Mill.)”
Claim · model-written summary
Under doubled CO2, low UV-B doses stimulated leaf chlorophyll content.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- low doses of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))e0
- Outcome
- leaf chlorphyll contente0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“low doses of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))could stimulate the increasing of leaf chlorphyll content”
e1“tomato(Lycopersicon esculentum Mill.)”
Claim · model-written summary
Under doubled CO2, low UV-B doses enhanced antioxidant enzyme activity.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- low doses of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))e0
- Outcome
- activity of antioxidative enzymese0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“low doses of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))could stimulate the increasing of leaf chlorphyll content and enhancing the activity of antioxidative enzymes”
e1“tomato(Lycopersicon esculentum Mill.)”
Claim · model-written summary
The stated high UV-B dose decreased leaf chlorophyll content and photosynthetic rate.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- High dose of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))e0
- Outcome
- leaf chlorophyll content and Pne0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High dose of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))decreased the leaf chlorophyll content and Pn”
e1“tomato(Lycopersicon esculentum Mill.)”
Claim · model-written summary
The stated high UV-B dose inhibited antioxidant enzyme activity.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- High dose of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))e0
- Outcome
- activity of antioxidative enzymese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High dose of UV-B radiation(1.163 kJ·m~(-2)·d~(-1))decreased the leaf chlorophyll content and Pn, inhibited the activity of antioxidative enzymes”
e1“tomato(Lycopersicon esculentum Mill.)”
Claim · model-written summary
Doubled CO2 reduced the stated UV-B inhibition.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Doubled CO_2 concentratione0
- Outcome
- this inhibitione0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doubled CO_2 concentration could reduce this inhibition”
e1“tomato(Lycopersicon esculentum Mill.)”
The same questions in other papers
uv · physiology: photosynthesis · Solanum lycopersicum (tomato)Results differ
7 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
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See all 11 papers →uv · physiology: enzyme activity · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
uv · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
10 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- negative
- negative
11 papers more in this group
See all 15 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.