Abstract
Early growth, pigmentation, protein content, and phenylalanine ammonia-lyase (PAL) activity of red curly lettuces (Lactuca sativa L.) grown under different lighting conditions were investigated. Fluorescent lamps (control), blue, red, and blue plus red light-emitting diodes (LEDs) were used as light sources for 10 days. An equal proportion (1:1) of blue and red LEDs was used in the mixed radiation condition. Compared with the control, monochromic red or blue lighting increased fresh and dry weights of 'Ttuksum' and 'Jaju' lettuces. Anthocyanin synthesis was also significantly promoted by the mixed radiation of blue and red LEDs. The mixed radiation also increased the protein content and PAL enzyme activity of 'Ttuksum' leaves by about 200% compared to other treatments. Anthocyanin content was the highest in lettuces subjected to the mixture radiation of blue and red light treatment, while anthocyanin synthesis was inhibited by monochromic red light. The results of the present study indicate that growth and pigment synthesis in lettuces are significantly enhanced by exposure to mixed radiation from blue and red LEDs.
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Claims 9
Claim · model-written summary
Red light increased fresh and dry weights of Ttuksum lettuce against fluorescent control.
- Taxon
- lettuces
Lactuca sativae0 - Material
- Ttuksume0
- Treatment
- rede0
- Outcome
- fresh and dry weightse0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control, monochromic red or blue lighting increased fresh and dry weights of 'Ttuksum' and 'Jaju' lettuces.”
Claim · model-written summary
Blue light increased fresh and dry weights of Ttuksum lettuce against fluorescent control.
- Taxon
- lettucesLactuca sativae0
- Material
- Ttuksume0
- Treatment
- blue lightinge0
- Outcome
- fresh and dry weightse0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control, monochromic red or blue lighting increased fresh and dry weights of 'Ttuksum' and 'Jaju' lettuces.”
Claim · model-written summary
Red light increased fresh and dry weights of Jaju lettuce against fluorescent control.
- Taxon
- lettucesLactuca sativae0
- Material
- Jajue0
- Treatment
- rede0
- Outcome
- fresh and dry weightse0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control, monochromic red or blue lighting increased fresh and dry weights of 'Ttuksum' and 'Jaju' lettuces.”
Claim · model-written summary
Blue light increased fresh and dry weights of Jaju lettuce against fluorescent control.
- Taxon
- lettucesLactuca sativae0
- Material
- Jajue0
- Treatment
- blue lightinge0
- Outcome
- fresh and dry weightse0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control, monochromic red or blue lighting increased fresh and dry weights of 'Ttuksum' and 'Jaju' lettuces.”
Claim · model-written summary
Mixed blue and red LEDs significantly promoted anthocyanin synthesis.
- Taxon
- lettucesLactuca sativat0
- Treatment
- mixed radiation of blue and red LEDse0
- Outcome
- Anthocyanin synthesise0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthocyanin synthesis was also significantly promoted by the mixed radiation of blue and red LEDs.”
t0“Red Curled Lettuces”
Claim · model-written summary
Mixed light increased Ttuksum leaf protein content by about 200% relative to other treatments.
- Taxon
- lettucesLactuca sativat0
- Material
- Ttuksume0
- Organ / stage
- leavese0
- Treatment
- mixed radiatione0
- Outcome
- protein contente0
- Direction
- increasede0
- Value
- about 200%e0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mixed radiation also increased the protein content and PAL enzyme activity of 'Ttuksum' leaves by about 200% compared to other treatments.”
t0“Red Curled Lettuces”
Claim · model-written summary
Mixed light increased Ttuksum leaf PAL enzyme activity by about 200% relative to other treatments.
- Taxon
- lettucesLactuca sativat0
- Material
- Ttuksume0
- Organ / stage
- leavese0
- Treatment
- mixed radiatione0
- Gene
- PALe0
- Outcome
- PAL enzyme activitye0
- Direction
- increasede0
- Value
- about 200%e0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mixed radiation also increased the protein content and PAL enzyme activity of 'Ttuksum' leaves by about 200% compared to other treatments.”
t0“Red Curled Lettuces”
Claim · model-written summary
Anthocyanin content was highest with mixed blue and red light.
- Taxon
- lettucesLactuca sativae0
- Treatment
- mixture radiation of blue and red light treatmente0
- Outcome
- Anthocyanin contente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthocyanin content was the highest in lettuces subjected to the mixture radiation of blue and red light treatment”
Claim · model-written summary
Monochromic red light inhibited anthocyanin synthesis.
- Taxon
- lettucesLactuca sativat0
- Treatment
- monochromic red lighte0
- Outcome
- anthocyanin synthesise0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“anthocyanin synthesis was inhibited by monochromic red light”
t0“Red Curled Lettuces”
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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.