Paper · 2004 · Xibei zhiwu xuebao

Physiological and ecological effects of enhanced UV-B radiation on wheat seedling under NaCl stress condition

Cheng Liu

19
claims
56
verbatim quotes
2
citations
1
research areas
—
Not open access

Abstract

The depletion of the stratospheric ozone layer has been well documented, so ultraviolet-B (UV-B) radiation (280~320 nm) reaching the earth surface has increased since 1970s. Although extensive studies were done about biological and ecological effects of enhanced UV-B radiation, little was known about the interactive effects of UV-B radiation and NaCl stress on plants. In this paper, the interactive effects of UV-B radiation (0.4 w·m~(-2)) and NaCl stress (0.8%) on growth, photosynthesis, water status, flavones and activities of antioxidative enzymes in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied. Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl). The addition of NaCl was started after 3 days of seedling growth, the UV-B radiation was started to supply in photoperiod after 10 days of seedling growth. The seedlings were grown at 30/25℃ (day and night) and 75% relative humidity with a 11 h photoperiod under fluorescent white light (300~350 μmol·m~(-2)·s~(-1)) in a greenhouse. All measurements were made at 20 day of seedling growth. The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA). However there were not significant differences in most of above parameters between NaCl and UV-B+NaCl treatments (not including carotenoid content). Contents of flavones and activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) increased obviously under all stress conditions, but the increasing was mostly induced by UV-B+NaCl treatment. Proline content was reduced by UV-B treatment and enhanced by NaCl and UV-B+NaCl treatments, but the effect of UV-B+NaCl treatment was bigger than that of NaCl treatment. These results indicated that UV-B radiation did not obviously strengthen the inhibition of wheat seedlings induced by NaCl stress, this may be related to the results that NaCl stress induced the enhancement of contents of flavone and proline and activities of SOD, POD and CAT in wheat seedlings.

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Claims 19

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B decreased plant height, biomass, water content of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
exposure to UV-B radiatione1
Outcome
plant height, biomass, water contente2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B decreased net photosynthetic rate, transpiration rate, stomatal conductance of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
exposure to UV-B radiatione1
Outcome
net photosynthetic rate, transpiration rate, stomatal conductancee2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B decreased contents of photosynthetic pigments of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
exposure to UV-B radiatione1
Outcome
contents of photosynthetic pigmentse2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NaCl decreased plant height, biomass, water content of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
addition of NaCle1
Outcome
plant height, biomass, water contente2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NaCl decreased net photosynthetic rate, transpiration rate, stomatal conductance of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
addition of NaCle1
Outcome
net photosynthetic rate, transpiration rate, stomatal conductancee2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NaCl decreased contents of photosynthetic pigments of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
addition of NaCle1
Outcome
contents of photosynthetic pigmentse2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B+NaCl decreased plant height, biomass, water content of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
addition of NaCl and exposure to UV-B radiatione1
Outcome
plant height, biomass, water contente2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B+NaCl decreased net photosynthetic rate, transpiration rate, stomatal conductance of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
addition of NaCl and exposure to UV-B radiatione1
Outcome
net photosynthetic rate, transpiration rate, stomatal conductancee2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B+NaCl decreased contents of photosynthetic pigments of wheat seedlings relative to control.

Material
Xiaoyan-926e0
Treatment
addition of NaCl and exposure to UV-B radiatione1
Outcome
contents of photosynthetic pigmentse2
Direction
decreasee2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B radiation increased relative leakage ratio and lipid peroxidation (MDA) in wheat seedlings.

Material
Xiaoyan-926e0
Treatment
exposure to UV-B radiatione1
Outcome
relative leakage ratio and lipid peroxidatione2
Direction
increasee2
Qualifier
malondialdehyde (MDA)e2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NaCl increased relative leakage ratio and lipid peroxidation (MDA) in wheat seedlings.

Material
Xiaoyan-926e0
Treatment
addition of NaCle1
Outcome
relative leakage ratio and lipid peroxidatione2
Direction
increasee2
Qualifier
malondialdehyde (MDA)e2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B combined with NaCl increased relative leakage ratio and lipid peroxidation (MDA) in wheat seedlings.

Material
Xiaoyan-926e0
Treatment
addition of NaCl and exposure to UV-B radiatione1
Outcome
relative leakage ratio and lipid peroxidatione2
Direction
increasee2
Qualifier
malondialdehyde (MDA)e2
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e2

“The results showed that treatments of UV-B, NaCl and UV-B+NaCl all resulted into a decrease in plant height, biomass, water content, net photosynthetic rate, transpiration rate, stomatal conductance and contents of photosynthetic pigments, and into an increase in relative leakage ratio and lipid peroxidation, as quantified by measurement of malondialdehyde (MDA)”

✓ located verbatim in the source · abstract, characters 1245–1609 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Flavone contents increased under all stress conditions in wheat seedlings.

Material
Xiaoyan-926e0
Treatment
all stress conditionse3
Outcome
Contents of flavonese3
Direction
increasede3
Qualifier
mostly induced by UV-B+NaCl treatmente3
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e3

“Contents of flavones and activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) increased obviously under all stress conditions, but the increasing was mostly induced by UV-B+NaCl treatment”

✓ located verbatim in the source · abstract, characters 1760–1972 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Activities of SOD, CAT and POD increased under all stress conditions in wheat seedlings.

Material
Xiaoyan-926e0
Treatment
all stress conditionse3
Outcome
activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD)e3
Direction
increasede3
Qualifier
mostly induced by UV-B+NaCl treatmente3
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e3

“Contents of flavones and activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) increased obviously under all stress conditions, but the increasing was mostly induced by UV-B+NaCl treatment”

✓ located verbatim in the source · abstract, characters 1760–1972 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

UV-B reduced proline content in wheat seedlings.

Material
Xiaoyan-926e0
Treatment
UV-B treatmente4
Outcome
Proline contente4
Direction
reducede4
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e4

“Proline content was reduced by UV-B treatment and enhanced by NaCl and UV-B+NaCl treatments, but the effect of UV-B+NaCl treatment was bigger than that of NaCl treatment”

✓ located verbatim in the source · abstract, characters 1974–2143 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NaCl enhanced proline content in wheat seedlings.

Material
Xiaoyan-926e0
Treatment
addition of NaCle1
Outcome
Proline contente4
Direction
enhancede4
Comparator
no addition of NaCl and no exposure to UV-B radiatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e4

“Proline content was reduced by UV-B treatment and enhanced by NaCl and UV-B+NaCl treatments, but the effect of UV-B+NaCl treatment was bigger than that of NaCl treatment”

✓ located verbatim in the source · abstract, characters 1974–2143 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

UV-B combined with NaCl enhanced proline content more than NaCl alone.

Material
Xiaoyan-926e0
Treatment
addition of NaCl and exposure to UV-B radiatione1
Outcome
Proline contente4
Direction
enhancede4
Qualifier
the effect of UV-B+NaCl treatment was bigger than that of NaCl treatmente4
Comparator
addition of NaCle1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e4

“Proline content was reduced by UV-B treatment and enhanced by NaCl and UV-B+NaCl treatments, but the effect of UV-B+NaCl treatment was bigger than that of NaCl treatment”

✓ located verbatim in the source · abstract, characters 1974–2143 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Most parameters did not differ significantly between NaCl and UV-B+NaCl treatments.

Material
Xiaoyan-926e0
Treatment
addition of NaCl and exposure to UV-B radiatione1
Outcome
most of above parameterse6
Comparator
addition of NaCle1

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e1

“Four treatments were included in the experiment: no addition of NaCl and no exposure to UV-B radiation (CK), addition of NaCl (NaCl), exposure to UV-B radiation (UV-B), addition of NaCl and exposure to UV-B radiation (UV-B+NaCl)”

✓ located verbatim in the source · abstract, characters 625–853 · show in text ↑
e6

“However there were not significant differences in most of above parameters between NaCl and UV-B+NaCl treatments (not including carotenoid content)”

✓ located verbatim in the source · abstract, characters 1611–1758 · show in text ↑
Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

UV-B did not obviously strengthen NaCl-induced inhibition of wheat seedlings, possibly because NaCl-induced flavone and proline enhancement offsets it.

Outcome
inhibition of wheat seedlings induced by NaCl stresse5
Qualifier
NaCl stress induced the enhancement of contents of flavone and prolinee5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in wheat ( Triticum aestivum L. Xiaoyan-926) seedlings were studied”

✓ located verbatim in the source · abstract, characters 556–623 · show in text ↑
e5

“UV-B radiation did not obviously strengthen the inhibition of wheat seedlings induced by NaCl stress, this may be related to the results that NaCl stress induced the enhancement of contents of flavone and proline and activities of SOD, POD and CAT in wheat seedlings”

✓ located verbatim in the source · abstract, characters 2174–2440 · show in text ↑

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uv · growth · Triticum aestivum (wheat)Results differ

45 papers: 19 positive, 26 negative or no effect

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17 papers: 5 positive, 12 negative or no effect

11 papers in the same direction as this paper · 5 in the opposite direction

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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.