Abstract
Different light wavelengths have specific effects on plant growth and development. Narrow-bandwidth light-emitting diode (LED) lighting may be used to directionally manipulate size, color and metabolites in high-value fruits and vegetables. In this report, Red Russian kale (Brassica napus) seedlings were grown under specific light conditions and analyzed for photomorphogenic responses, pigment accumulation and nutraceutical content. The results showed that this genotype responds predictably to darkness, blue and red light, with suppression of hypocotyl elongation, development of pigments and changes in specific metabolites. However, these seedlings were relatively hypersensitive to far-red light, leading to uncharacteristically short hypocotyls and high pigment accumulation, even after growth under very low fluence rates (<1 μmol m(-2) s(-1)). General antioxidant levels and aliphatic glucosinolates are elevated by far-red light treatments. Sequential treatments of darkness, blue light, red light and far-red light were applied throughout sprout development to alter final product quality. These results indicate that sequential treatment with narrow-bandwidth light may be used to affect key economically important traits in high-value crops.
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Claims 7
Claim · model-written summary
Kale seedlings responded predictably to darkness, blue and red light with suppression of hypocotyl elongation.
- Taxon
- kale (Brassica napus)
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- darkness, blue and red lighte0
- Outcome
- hypocotyl elongatione0
- Direction
- suppressione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
t0“kale (Brassica napus)”
e0“responds predictably to darkness, blue and red light, with suppression of hypocotyl elongation”
Claim · model-written summary
Kale seedlings responded predictably to darkness, blue and red light with development of pigments.
- Taxon
- kale (Brassica napus)Brassica napust0
- Treatment
- darkness, blue and red lighte0
- Outcome
- pigmentse0
- Direction
- developmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“kale (Brassica napus)”
e0“responds predictably to darkness, blue and red light, with suppression of hypocotyl elongation, development of pigments”
Claim · model-written summary
Kale seedlings responded predictably to darkness, blue and red light with changes in specific metabolites.
- Taxon
- kale (Brassica napus)Brassica napust0
- Treatment
- darkness, blue and red lighte0
- Outcome
- specific metabolitese0
- Direction
- changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“kale (Brassica napus)”
e0“genotype responds predictably to darkness, blue and red light, with suppression of hypocotyl elongation, development of pigments and changes in specific metabolites”
Claim · model-written summary
Kale seedlings were relatively hypersensitive to far-red light, giving uncharacteristically short hypocotyls, even at very low fluence rates (<1 umol m-2 s-1).
- Taxon
- kale (Brassica napus)Brassica napust0
- Treatment
- far-red lighte0
- Outcome
- hypocotylse0
- Direction
- uncharacteristically shorte0
- Qualifier
- very low fluence rates (<1 μmol m(-2) s(-1))e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“kale (Brassica napus)”
e0“relatively hypersensitive to far-red light, leading to uncharacteristically short hypocotyls and high pigment accumulation, even after growth under very low fluence rates (<1 μmol m(-2) s(-1))”
Claim · model-written summary
Kale seedlings were relatively hypersensitive to far-red light, giving high pigment accumulation, even at very low fluence rates (<1 umol m-2 s-1).
- Taxon
- kale (Brassica napus)Brassica napust0
- Treatment
- far-red lighte0
- Outcome
- pigment accumulatione0
- Direction
- highe0
- Qualifier
- very low fluence rates (<1 μmol m(-2) s(-1))e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“kale (Brassica napus)”
e0“relatively hypersensitive to far-red light, leading to uncharacteristically short hypocotyls and high pigment accumulation, even after growth under very low fluence rates (<1 μmol m(-2) s(-1))”
Claim · model-written summary
General antioxidant levels and aliphatic glucosinolates were elevated by far-red light treatments in kale seedlings.
- Taxon
- kale (Brassica napus)Brassica napust0
- Treatment
- far-red light treatmentse0
- Outcome
- General antioxidant levels and aliphatic glucosinolatese0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“kale (Brassica napus)”
e0“General antioxidant levels and aliphatic glucosinolates are elevated by far-red light treatments”
Claim · model-written summary
The authors conclude that sequential treatment with narrow-bandwidth light may be used to affect key economically important traits in high-value crops.
Verbatim
e0“sequential treatment with narrow-bandwidth light may be used to affect key economically important traits in high-value crops”
The same questions in other papers
light · quality: phytochemicals · Brassica napus (oilseed rape)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 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.