Abstract
Light quality is known to affects numerous plants’ physiological and metabolic processes during development period, including photosynthesis and morphogenesis. Light properties such as light wavelength has been optimized for several cultivated crops. In this study, the effects of LED light wavelengths blue and red on both photosynthetic performance and morphology of Gerbera jamesonii plantlets was investigated. The results showed the photosynthesis efficiency via the photo-pigment system and mediated regulation of rubisco activase encoding gene (RCA) mechanism was significantly enhanced by blue light. The expression of RCA was approximatly 2.7 times higher than those under red light. In contrast, chlorophyll contents, CO2 assimilation, total carbohydrate and RCA expression was reduced under red wavelength. However, both single-wavelengths caused a dramatically negative impact on G. jamesonii. Total chlorophyll/carotenoid value or higher carotenoid contents was lower under blue light; fragile petioles and drawrfism morphology was occurred under red and blue LED, respectively. The combination of blue and red light in the lighting spectrum significantly improved the limitations of single-wavelength. The supplement of blue light under red light background (at blue LED and red LED ratio = 1:4) improved plant photosynthesis while maintained the normal morphology of plants, although the expression of RCA and net photosynthesis of plants in BR LED was lower than in the control. Our results obviously provide the scientific evidences for requirement of LED light in micropropagation or canopy culture of G. jamesonii.
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Claims 12
Claim · model-written summary
Blue light significantly enhanced photosynthesis efficiency through the photo-pigment system.
- Taxon
- Gerbera jamesonii
Gerbera jamesoniit0 - Treatment
- blue lighte0
- Outcome
- photosynthesis efficiencye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“photosynthesis efficiency via the photo-pigment system and mediated regulation of rubisco activase encoding gene (RCA) mechanism was significantly enhanced by blue light”
Claim · model-written summary
RCA expression under blue light was approximately 2.7 times higher than under red light.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- blue lighte1
- Gene
- RCAe0
- Outcome
- expression of RCAe0
- Direction
- highere0
- Value
- 2.7 timese0
- Comparator
- red lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“The expression of RCA was approximatly 2.7 times higher than those under red light”
e1“was significantly enhanced by blue light”
Claim · model-written summary
Under red light, chlorophyll contents, CO2 assimilation and total carbohydrate were reduced.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- red wavelengthe0
- Outcome
- chlorophyll contents, CO2 assimilation, total carbohydratee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“chlorophyll contents, CO2 assimilation, total carbohydrate and RCA expression was reduced under red wavelength”
Claim · model-written summary
Under red light, RCA expression was reduced.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- red wavelengthe0
- Gene
- RCAe0
- Outcome
- RCA expressione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“RCA expression was reduced under red wavelength”
Claim · model-written summary
Total chlorophyll/carotenoid value or carotenoid contents were lower under blue light.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- blue lighte0
- Outcome
- Total chlorophyll/carotenoid value or higher carotenoid contentse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“Total chlorophyll/carotenoid value or higher carotenoid contents was lower under blue light”
Claim · model-written summary
Red LED caused fragile petioles.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Organ / stage
- petiolese0
- Treatment
- rede0
- Outcome
- fragile petiolese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“fragile petioles and drawrfism morphology was occurred under red and blue LED, respectively”
Claim · model-written summary
Blue LED caused dwarf morphology.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- blue LEDe0
- Outcome
- drawrfism morphologye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“fragile petioles and drawrfism morphology was occurred under red and blue LED, respectively”
Claim · model-written summary
Combined blue and red light significantly improved limitations of single-wavelength illumination.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- combination of blue and red lighte0
- Outcome
- limitations of single-wavelengthe0
- Direction
- improvede0
- Comparator
- single-wavelengthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“The combination of blue and red light in the lighting spectrum significantly improved the limitations of single-wavelength”
Claim · model-written summary
Blue supplementation on a red background at a 1:4 ratio improved photosynthesis.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- supplement of blue light under red light background (at blue LED and red LED ratio = 1:4)e0
- Outcome
- plant photosynthesise0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“The supplement of blue light under red light background (at blue LED and red LED ratio = 1:4) improved plant photosynthesis”
Claim · model-written summary
The 1:4 blue and red LED combination maintained normal plant morphology.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- supplement of blue light under red light background (at blue LED and red LED ratio = 1:4)e0
- Outcome
- normal morphology of plantse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“The supplement of blue light under red light background (at blue LED and red LED ratio = 1:4) improved plant photosynthesis while maintained the normal morphology of plants”
Claim · model-written summary
RCA expression under combined blue and red LED was lower than in the control.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- BR LEDe0
- Gene
- RCAe0
- Outcome
- expression of RCAe0
- Direction
- lowere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“the expression of RCA and net photosynthesis of plants in BR LED was lower than in the control”
Claim · model-written summary
Net photosynthesis under combined blue and red LED was lower than in the control.
- Taxon
- Gerbera jamesoniiGerbera jamesoniit0
- Treatment
- BR LEDe0
- Outcome
- net photosynthesise0
- Direction
- lowere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Gerbera jamesonii”
e0“the expression of RCA and net photosynthesis of plants in BR LED was lower than in the control”
The same questions in other papers
light · physiology: pigments · Gerbera jamesonii (Transvaal daisy)Positive and negative results
1 in the opposite direction
- positive
light · physiology: photosynthesis · Gerbera jamesonii (Transvaal daisy)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →light · growth · Gerbera jamesonii (Transvaal daisy)Positive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
6 papers more in this group
See all 10 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.