Abstract
for 20 min. UV-B induced upregulation of genes involved in anthocyanin biosynthesis in blueberry fruit compared to a nontreated control. Phenylalanine ammonia lyase, chalcone synthase, and flavanone 3'-hydroxylase, which are enzymes that function upstream of anthocyanin biosynthesis, were significantly expressed by UV-B. Expression levels of VcBBX, VcMYB21, and VcR2R3MYB transcription factors (TFs) were upregulated by UV-B in the same manner as the anthocyanin biosynthesis genes. The significant increase in the expression of TFs occurred immediately after UV-B treatment and was then maximized within 3 h. In accordance with these changes, individual anthocyanin contents in the fruits treated with UV-B significantly increased within 6 h and were 2-3-fold higher than the control. Our results indicated that UV-B radiation stimulates an increase in anthocyanin biosynthesis, which could be upregulated by the TFs studied.
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Claims 6
Claim · model-written summary
UV-B increased anthocyanin biosynthesis gene expression in blueberry fruit.
Verbatim
e0“UV-B induced upregulation of genes involved in anthocyanin biosynthesis in blueberry fruit compared to a nontreated control.”
Claim · model-written summary
UV-B significantly increased expression of three upstream anthocyanin biosynthesis enzymes.
- Taxon
- Blueberryt0
- Treatment
- UV-Be0
- Gene
- Phenylalanine ammonia lyase, chalcone synthase, and flavanone 3'-hydroxylasee0
- Outcome
- significantly expressede0
Not reportedComparatorDirection
Verbatim
e0“Phenylalanine ammonia lyase, chalcone synthase, and flavanone 3'-hydroxylase, which are enzymes that function upstream of anthocyanin biosynthesis, were significantly expressed by UV-B.”
t0“Harvested Blueberry Fruit”
Claim · model-written summary
UV-B upregulated VcBBX, VcMYB21, and VcR2R3MYB expression.
- Taxon
- Blueberryt0
- Treatment
- UV-Be0
- Gene
- VcBBX, VcMYB21, and VcR2R3MYBe0
- Outcome
- Expression levelse0
- Direction
- upregulatede0
Not reportedComparator
Verbatim
e0“Expression levels of VcBBX, VcMYB21, and VcR2R3MYB transcription factors (TFs) were upregulated by UV-B in the same manner as the anthocyanin biosynthesis genes.”
t0“Harvested Blueberry Fruit”
Claim · model-written summary
Transcription factor expression rose immediately and peaked within 3 h after UV-B treatment.
- Taxon
- Blueberryt0
- Treatment
- UV-B treatmente0
- Outcome
- expression of TFse0
- Direction
- increasee0
- Value
- 3 he0
- Qualifier
- immediately after UV-B treatmente0
Not reportedComparator
Verbatim
e0“The significant increase in the expression of TFs occurred immediately after UV-B treatment and was then maximized within 3 h.”
t0“Harvested Blueberry Fruit”
Claim · model-written summary
Individual anthocyanin contents increased within 6 h to two to three times control levels.
Verbatim
e0“individual anthocyanin contents in the fruits treated with UV-B significantly increased within 6 h and were 2-3-fold higher than the control.”
t0“Harvested Blueberry Fruit”
Claim · model-written summary
Authors suggest the studied transcription factors may upregulate UV-B-induced anthocyanin biosynthesis.
Verbatim
e0“UV-B radiation stimulates an increase in anthocyanin biosynthesis, which could be upregulated by the TFs studied.”
t0“Harvested Blueberry Fruit”
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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.