Abstract
Preharvest ultraviolet C (UV-C) irradiation is an innovative approach for increasing the bioactive phytochemical content of strawberries to increase the disease resistance and nutritional value. This study investigated the changes in individual flavonoids in strawberry developed with three different cumulative doses of preharvest UV-C treatment (low, 9.6 kJ m –2; middle, 15 kJ m –2; and high, 29.4 kJ m –2 ). Significant accumulation ( p < 0.05) of phenolics (25–75% increase), namely, cyanidin 3-glucoside, pelargonidin 3-glucoside/rutinoside, glucoside and glucuronide of quercetin and kaempferol, and ellagic acid, was found in the fruit subjected to low and middle supplemental doses of UV-C radiation. The expression of the flavonoid pathway structural genes, i.e., FaCHS1, FaCHI, FaFHT, FaDFR, FaFLS, and FaFGT, was upregulated in the low- and middle-dose groups, while the early stage genes were not affected by the high dose. FaMYB1 was also relatively enhanced in the low- and middle-dose groups, while FaASR was upregulated in only the low-dose group. Hormetic preharvest UV-C dose ranges for enhancing the polyphenol content of strawberries were established for the first time.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Low and middle preharvest UV-C doses increased phenolics in strawberry fruit by 25–75%.
- Taxon
- strawberries
_single2.jpg?width=60)
Fragaria ×ananassae0 - Organ / stage
- fruite1
- Treatment
- low and middle supplemental doses of UV-Ce1
- Outcome
- phenolicse1
- Direction
- increasee1
- Value
- 25–75%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“content of strawberries to increase the disease resistance”
e1“Significant accumulation ( p < 0.05) of phenolics (25–75% increase), namely, cyanidin 3-glucoside, pelargonidin 3-glucoside/rutinoside, glucoside and glucuronide of quercetin and kaempferol, and ellagic acid, was found in the fruit subjected to low and middle supplemental doses of UV-C radiation”
Claim · model-written summary
Low- and middle-dose UV-C upregulated expression of FaCHS1, FaCHI and FaFHT in strawberry.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- low- and middle-dose groupse2
- Gene
- FaCHS1, FaCHI, FaFHTe2
- Outcome
- expression of the flavonoid pathway structural genese2
- Direction
- upregulatede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“content of strawberries to increase the disease resistance”
e2“The expression of the flavonoid pathway structural genes, i.e., FaCHS1, FaCHI, FaFHT, FaDFR, FaFLS, and FaFGT, was upregulated in the low- and middle-dose groups”
Claim · model-written summary
Low- and middle-dose UV-C upregulated expression of FaDFR, FaFLS and FaFGT in strawberry.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- low- and middle-dose groupse2
- Gene
- FaDFR, FaFLS, and FaFGTe2
- Outcome
- expression of the flavonoid pathway structural genese2
- Direction
- upregulatede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“content of strawberries to increase the disease resistance”
e2“The expression of the flavonoid pathway structural genes, i.e., FaCHS1, FaCHI, FaFHT, FaDFR, FaFLS, and FaFGT, was upregulated in the low- and middle-dose groups”
Claim · model-written summary
High-dose UV-C did not affect early stage pathway genes in strawberry.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- high dosee3
- Outcome
- early stage genese3
- Direction
- not affectede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“content of strawberries to increase the disease resistance”
e3“while the early stage genes were not affected by the high dose”
Claim · model-written summary
Low- and middle-dose UV-C enhanced FaMYB1 expression in strawberry.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- low- and middle-dose groupse4
- Gene
- FaMYB1e4
- Outcome
- FaMYB1e4
- Direction
- enhancede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“content of strawberries to increase the disease resistance”
e4“FaMYB1 was also relatively enhanced in the low- and middle-dose groups”
Claim · model-written summary
Low-dose UV-C upregulated FaASR in strawberry.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- low-dose groupe5
- Gene
- FaASRe5
- Outcome
- FaASRe5
- Direction
- upregulatede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“content of strawberries to increase the disease resistance”
e5“while FaASR was upregulated in only the low-dose group”
Claim · model-written summary
Hormetic preharvest UV-C dose ranges for enhancing strawberry polyphenol content were established.
- Taxon
- strawberriesFragaria ×ananassae6
- Treatment
- Hormetic preharvest UV-C dose rangese6
- Outcome
- polyphenol contente6
- Direction
- enhancinge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“content of strawberries to increase the disease resistance”
e6“Hormetic preharvest UV-C dose ranges for enhancing the polyphenol content of strawberries were established for the first time”
The same questions in other papers
uv · quality: phytochemicals · Fragaria x ananassa (strawberry)Positive and negative results
9 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- positive
12 papers more in this group
See all 16 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.