Abstract
Anthropogenic emissions have greatly influenced UV-B radiation incidence and CO2 concentration globally. The interactive effects of projected incidence on crops by the end of the century need to be studied to understand the implications. The use of sunlit plant growth chambers in combination with UV-B radiation and CO2 treatments was used to identify the individual and interactive effects on basil 'Genovese' plants. Treatments included 0 and 10 kJ m−2 d−1 UV-B supplementation at ambient (437 ppm) or elevated (725 ppm) CO2 concentrations. Effects of UV-B by CO2 interactions existed for net photosynthesis, light-adapted maximal quantum efficiency, all plant pigment concentrations, and malondialdehyde. UV-B increased leaf temperature by approximately 1 °C while elevated CO2 concentrations amplified superoxide dismutase and ascorbate peroxidase activity in basil leaves. Despite deleterious impacts on plant health, UV-B radiation is essential for stimulating healthful compounds in basil. Understanding the effects when combined with elevated CO2 is necessary to improve crop production and future research.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
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
UV-B and CO2 interacted in their effect on net photosynthesis.
- Taxon
- basil
Ocimum basilicume1 - Material
- Genovesee1
- Treatment
- UV-B by CO2 interactionse0
- Outcome
- net photosynthesise0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects of UV-B by CO2 interactions existed for net photosynthesis, light-adapted maximal quantum efficiency, all plant pigment concentrations, and malondialdehyde.”
e1“basil 'Genovese' plants”
Claim · model-written summary
UV-B and CO2 interacted in their effect on light-adapted maximal quantum efficiency.
- Taxon
- basilOcimum basilicume1
- Treatment
- UV-B by CO2 interactionse0
- Outcome
- light-adapted maximal quantum efficiencye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects of UV-B by CO2 interactions existed for net photosynthesis, light-adapted maximal quantum efficiency, all plant pigment concentrations, and malondialdehyde.”
e1“basil 'Genovese' plants”
Claim · model-written summary
UV-B and CO2 interacted in their effect on pigment concentrations.
- Taxon
- basilOcimum basilicume1
- Treatment
- UV-B by CO2 interactionse0
- Outcome
- all plant pigment concentrationse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects of UV-B by CO2 interactions existed for net photosynthesis, light-adapted maximal quantum efficiency, all plant pigment concentrations, and malondialdehyde.”
e1“basil 'Genovese' plants”
Claim · model-written summary
UV-B and CO2 interacted in their effect on malondialdehyde.
- Taxon
- basilOcimum basilicume1
- Treatment
- UV-B by CO2 interactionse0
- Outcome
- malondialdehydee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects of UV-B by CO2 interactions existed for net photosynthesis, light-adapted maximal quantum efficiency, all plant pigment concentrations, and malondialdehyde.”
e1“basil 'Genovese' plants”
Claim · model-written summary
UV-B increased basil leaf temperature by approximately 1 °C.
- Taxon
- basilOcimum basilicume1
- Treatment
- UV-Be0
- Outcome
- leaf temperaturee0
- Direction
- increasede0
- Value
- approximately 1 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-B increased leaf temperature by approximately 1 °C”
e1“in basil leaves”
Claim · model-written summary
Elevated CO2 amplified superoxide dismutase and ascorbate peroxidase activity in basil leaves.
- Taxon
- basilOcimum basilicume0
- Treatment
- elevated CO2 concentrationse0
- Outcome
- superoxide dismutase and ascorbate peroxidase activitye0
- Direction
- amplifiede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“elevated CO2 concentrations amplified superoxide dismutase and ascorbate peroxidase activity in basil leaves.”
Claim · model-written summary
UV-B stimulated healthful compounds in basil despite deleterious plant-health impacts.
- Taxon
- basilOcimum basilicume0
- Treatment
- UV-B radiatione0
- Outcome
- healthful compoundse0
- Direction
- stimulatinge0
- Qualifier
- deleterious impacts on plant healthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite deleterious impacts on plant health, UV-B radiation is essential for stimulating healthful compounds in basil.”
The same questions in other papers
co2 · physiology: antioxidant enzymes · Ocimum basilicum (basil)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.