Abstract
Resveratrols and flavonoids have important beneficial roles in plants and to humans. The grape family (Vitaceae) is one of several families that can biosynthesise both resveratrols and flavonoids. Previous research has shown that UV‐C may induce the biosynthesis of resveratrols in the fruit of grape. But little is known about the UV‐C‐induced biosynthesis of resveratrols and flavonoids in grape leaves. This study demonstrated that the biosynthesis of resveratrol in grape leaves strongly increased in response to UV‐C irradiation. The largest contribution to total resveratrols was trans ‐resveratrol. The expression of related genes, including PAL, C4H, 4CL and STS , increased and peaked 6–12 h after treatment, earlier than the peak of total resveratrol. In contrast, total flavonoid content and the expression of the key gene CHS was not affected by UV‐C radiation, staying at a low level after UV‐C irradiation. In summary, there is a differential response to UV‐C radiation for the biosynthesis of stilbenes and flavonoids in grape leaves.
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Claims 8
Claim · model-written summary
UV-C strongly increased resveratrol biosynthesis in grape leaves.
- Taxon
- grapee0
- Organ / stage
- leavese0
- Treatment
- UV‐C irradiatione0
- Outcome
- biosynthesis of resveratrole0
- Direction
- strongly increasede0
Not reportedComparator
Verbatim
e0“the biosynthesis of resveratrol in grape leaves strongly increased in response to UV‐C irradiation”
Claim · model-written summary
Trans-resveratrol contributed the largest share of total resveratrols.
Verbatim
e0“The largest contribution to total resveratrols was trans ‐resveratrol”
t0“grape leaves”
Claim · model-written summary
PAL expression increased and peaked 6–12 h after UV-C treatment.
- Taxon
- grapet0
- Treatment
- UV‐C irradiatione1
- Gene
- PALe0
- Outcome
- expression of related genese0
- Direction
- increasede0
- Qualifier
- peaked 6–12 h after treatmente0
Not reportedComparator
Verbatim
e0“The expression of related genes, including PAL, C4H, 4CL and STS , increased and peaked 6–12 h after treatment”
t0“grape leaves”
e1“UV‐C irradiation in grape leaves”
Claim · model-written summary
C4H expression increased and peaked 6–12 h after UV-C treatment.
- Taxon
- grapet0
- Treatment
- UV‐C irradiatione1
- Gene
- C4He0
- Outcome
- expression of related genese0
- Direction
- increasede0
- Qualifier
- peaked 6–12 h after treatmente0
Not reportedComparator
Verbatim
e0“The expression of related genes, including PAL, C4H, 4CL and STS , increased and peaked 6–12 h after treatment”
t0“grape leaves”
e1“UV‐C irradiation in grape leaves”
Claim · model-written summary
4CL expression increased and peaked 6–12 h after UV-C treatment.
- Taxon
- grapet0
- Treatment
- UV‐C irradiatione1
- Gene
- 4CLe0
- Outcome
- expression of related genese0
- Direction
- increasede0
- Qualifier
- peaked 6–12 h after treatmente0
Not reportedComparator
Verbatim
e0“The expression of related genes, including PAL, C4H, 4CL and STS , increased and peaked 6–12 h after treatment”
t0“grape leaves”
e1“UV‐C irradiation in grape leaves”
Claim · model-written summary
STS expression increased and peaked 6–12 h after UV-C treatment.
- Taxon
- grapet0
- Treatment
- UV‐C irradiatione1
- Gene
- STSe0
- Outcome
- expression of related genese0
- Direction
- increasede0
- Qualifier
- peaked 6–12 h after treatmente0
Not reportedComparator
Verbatim
e0“The expression of related genes, including PAL, C4H, 4CL and STS , increased and peaked 6–12 h after treatment”
t0“grape leaves”
e1“UV‐C irradiation in grape leaves”
Claim · model-written summary
Total flavonoid content was not affected by UV-C.
Not reportedComparator
Verbatim
e0“total flavonoid content and the expression of the key gene CHS was not affected by UV‐C radiation”
t0“grape leaves”
Claim · model-written summary
CHS expression was not affected by UV-C.
- Taxon
- grapet0
- Treatment
- UV‐C radiatione0
- Gene
- CHSe0
- Outcome
- expression of the key gene CHSe0
- Direction
- not affectede0
Not reportedComparator
Verbatim
e0“total flavonoid content and the expression of the key gene CHS was not affected by UV‐C radiation”
t0“grape leaves”
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See all 26 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.