Abstract
Low energies of near-ultraviolet radiation (300-400 nanometers), applied simultaneously with visible radiation to Nicotiana tabacum L. during daily illumination periods, increased levels of chlorogenic acid isomers, total soluble phenolics, alkaloids, and soluble sugars in expanding leaf lamina compared with controls that had near-ultraviolet filtered out. However, total nitrogen concentrations decreased. The responses to near-ultraviolet were interrelated with intensity of visible light. The presence of near-ultraviolet (which accounted for less than 4% of the total light energy) along with visible light resulted in component concentration differences similar to those caused by much greater increases of visible light without near-ultraviolet.
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Claims 5
Claim · model-written summary
Near ultraviolet light increased chlorogenic acid isomers, phenolics and alkaloids.
- Taxon
- Nicotiana tabacum L.
Nicotiana tabacume0 - Organ / stage
- expanding leaf laminae0
- Treatment
- near-ultraviolet radiation (300-400 nanometers)e0
- Outcome
- chlorogenic acid isomers, total soluble phenolics, alkaloidse0
- Direction
- increasede0
- Comparator
- controls that had near-ultraviolet filtered oute0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low energies of near-ultraviolet radiation (300-400 nanometers), applied simultaneously with visible radiation to Nicotiana tabacum L. during daily illumination periods, increased levels of chlorogenic acid isomers, total soluble phenolics, alkaloids, and soluble sugars in expanding leaf lamina compared with controls that had near-ultraviolet filtered out.”
Claim · model-written summary
Near ultraviolet light increased soluble sugars.
- Taxon
- Nicotiana tabacum L.Nicotiana tabacume0
- Treatment
- near-ultraviolet radiation (300-400 nanometers)e0
- Outcome
- soluble sugarse0
- Direction
- increasede0
- Comparator
- controls that had near-ultraviolet filtered oute0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low energies of near-ultraviolet radiation (300-400 nanometers), applied simultaneously with visible radiation to Nicotiana tabacum L. during daily illumination periods, increased levels of chlorogenic acid isomers, total soluble phenolics, alkaloids, and soluble sugars in expanding leaf lamina compared with controls that had near-ultraviolet filtered out.”
Claim · model-written summary
Near ultraviolet light decreased nitrogen concentration.
- Taxon
- Nicotiana tabacum L.Nicotiana tabacume1
- Treatment
- near-ultraviolett1
- Outcome
- total nitrogen concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, total nitrogen concentrations decreased.”
e1“Nicotiana tabacum L.”
t1“Near-Ultraviolet”
Claim · model-written summary
Near ultraviolet responses varied with visible light intensity.
- Taxon
- Nicotiana tabacum L.Nicotiana tabacume1
- Treatment
- intensity of visible lighte0
- Outcome
- responses to near-ultraviolete0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The responses to near-ultraviolet were interrelated with intensity of visible light.”
e1“Nicotiana tabacum L.”
Claim · model-written summary
Near ultraviolet plus visible light produced composition differences similar to much larger visible light increases.
- Taxon
- Nicotiana tabacum L.Nicotiana tabacume1
- Treatment
- near-ultraviolete0
- Outcome
- component concentration differencese0
- Direction
- similare0
- Comparator
- visible light without near-ultraviolete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of near-ultraviolet (which accounted for less than 4% of the total light energy) along with visible light resulted in component concentration differences similar to those caused by much greater increases of visible light without near-ultraviolet.”
e1“Nicotiana tabacum L.”
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See all 6 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.