Abstract
Sesamin is a major lignan constituent of sesame seeds and beneficial to human health. We previously reported that sesamin is contained in leaves as well as seeds of sesame and proposed that sesame leaves could be a new sesamin source. Growth and constituents of plants are affected by light wavelength. In this study, growth and leaf sesamin content of sesame variety ‘Gomazou’ were investigated in plants grown under continuous white fluorescent and monochromatic red or blue light emitting diode (LED) light. Under red LED light, plants developed pale-green, epinastic leaves. Compared with white fluorescent light, red LED light promoted stem elongation 1–3 weeks after sowing but retarded it 3–5 weeks after sowing. Under blue LED light, plants exhibited interveinal necrosis in the leaf blades and excessive stem elongation occurred irrespective of plant age. Leaf yields were lower in plants grown under red and blue LED lights relative to those under white fluorescent light. Blue LED light increased leaf sesamin content by 2.0 and 4.5 times compared with white fluorescent and red LED lights, respectively. From these results, we concluded that blue (LED) light may be effective at producing sesamin-rich leaves if the unfavorable morphological changes and reduction in growth can be prevented.
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Claims 10
Claim · model-written summary
Red LED light produced pale-green, epinastic sesame leaves.
- Taxon
- sesame
Sesamum indicumt0 - Material
- Gomazout0
- Organ / stage
- leavese0
- Treatment
- red LED lighte0
- Outcome
- pale-green, epinastic leavese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under red LED light, plants developed pale-green, epinastic leaves.”
t0“sesame variety ^|^#8216;Gomazou^|^#8217;”
Claim · model-written summary
Red LED light promoted sesame stem elongation at 1–3 weeks after sowing relative to white fluorescent light.
- Taxon
- sesameSesamum indicumt0
- Treatment
- red LED lighte0
- Outcome
- stem elongatione0
- Direction
- promotede0
- Qualifier
- 1–3 weeks after sowinge0
- Comparator
- white fluorescent lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with white fluorescent light, red LED light promoted stem elongation 1–3 weeks after sowing”
t0“sesame”
Claim · model-written summary
Red LED light retarded sesame stem elongation at 3–5 weeks after sowing relative to white fluorescent light.
- Taxon
- sesameSesamum indicumt0
- Treatment
- red LED lighte0
- Outcome
- stem elongatione0
- Direction
- retardede0
- Qualifier
- 3–5 weeks after sowinge0
- Comparator
- white fluorescent lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with white fluorescent light, red LED light promoted stem elongation 1–3 weeks after sowing but retarded it 3–5 weeks after sowing.”
t0“sesame”
Claim · model-written summary
Blue LED light produced interveinal necrosis in sesame leaf blades.
- Taxon
- sesameSesamum indicumt0
- Organ / stage
- leaf bladese0
- Treatment
- blue LED lighte0
- Outcome
- interveinal necrosis in the leaf bladese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under blue LED light, plants exhibited interveinal necrosis in the leaf blades”
t0“sesame”
Claim · model-written summary
Blue LED light produced excessive sesame stem elongation regardless of age.
- Taxon
- sesameSesamum indicumt0
- Treatment
- blue LED lighte1
- Outcome
- stem elongatione0
- Direction
- excessivee0
- Qualifier
- irrespective of plant agee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excessive stem elongation occurred irrespective of plant age”
e1“Under blue LED light”
t0“sesame”
Claim · model-written summary
Red LED light lowered sesame leaf yield relative to white fluorescent light.
- Taxon
- sesameSesamum indicumt0
- Treatment
- rede0
- Outcome
- Leaf yieldse0
- Direction
- lowere0
- Comparator
- white fluorescent lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf yields were lower in plants grown under red and blue LED lights relative to those under white fluorescent light.”
t0“sesame”
Claim · model-written summary
Blue LED light lowered sesame leaf yield relative to white fluorescent light.
- Taxon
- sesameSesamum indicumt0
- Treatment
- blue LED lightse0
- Outcome
- Leaf yieldse0
- Direction
- lowere0
- Comparator
- white fluorescent lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf yields were lower in plants grown under red and blue LED lights relative to those under white fluorescent light.”
t0“sesame”
Claim · model-written summary
Blue LED light raised leaf sesamin content 2.0 times relative to white fluorescent light.
- Taxon
- sesameSesamum indicumt0
- Treatment
- Blue LED lighte0
- Outcome
- leaf sesamin contente0
- Direction
- increasede0
- Value
- 2.0e0
- Comparator
- white fluorescente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Blue LED light increased leaf sesamin content by 2.0 and 4.5 times compared with white fluorescent and red LED lights, respectively.”
t0“sesame”
Claim · model-written summary
Blue LED light raised leaf sesamin content 4.5 times relative to red LED light.
- Taxon
- sesameSesamum indicumt0
- Treatment
- Blue LED lighte0
- Outcome
- leaf sesamin contente0
- Direction
- increasede0
- Value
- 4.5 timese0
- Comparator
- red LED lightse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Blue LED light increased leaf sesamin content by 2.0 and 4.5 times compared with white fluorescent and red LED lights, respectively.”
t0“sesame”
Claim · model-written summary
The authors conclude that blue LED light may produce sesamin-rich sesame leaves if adverse morphology and reduced growth can be prevented.
- Taxon
- sesameSesamum indicumt0
- Treatment
- blue (LED) lighte0
- Outcome
- producing sesamin-rich leavese0
- Qualifier
- if the unfavorable morphological changes and reduction in growth can be preventede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“blue (LED) light may be effective at producing sesamin-rich leaves if the unfavorable morphological changes and reduction in growth can be prevented”
t0“sesame”
The same questions in other papers
light · growth · Sesamum indicum (sesame)Positive and negative results
1 paper in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
light · molecular: metabolites · Sesamum indicum (sesame)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
light · yield · Sesamum indicum (sesame)Results agree
1 paper in the same direction as this paper
- negative
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.