Abstract
Two cucumber (Cucumis sativus L.)cultivars,‘Jinyan 4’ (salt tolerant) and ‘Jinlu4’ (salt sensitive) were grown in nutrient solutions with three NaCl levels(0,25,50 mmol·L-1)for the investigation of plant growth, chlorophyll fluorescence and active oxygen metabolism in seedling leaves. The results showed that NaCl stress decreased plant growth, chlorophyll content, quantum yield of PSII (ΦPSII),initial fluorescence yield(Fo)and non-photochemical quenching of fluorescence(NPQ). The plant growth of ‘Jinyan 4’ was less affected by salt stress than ‘Jinlu4’ and the photosynthetic apparatus was less injured by salt stress than ‘Jinlu4’. However, photochemical efficiency of PSII (Fv/Fm) was not affected by salt stress. Meanwhile,salt stress significantly increased the activity of ascorbate peroxidase (AsA-POD) and significantly decreased superoxide dismutase (SOD) activity in ‘Jinlu 4’. Free radical producing rate, and H2O2 and MDA content increased with increasing NaCl levels, however, less H2O2content and lipid peroxidation were observed in the leaves of ‘Jinyan 4’ than ‘Jinlu4’. It is concluded that higher SOD activity, less H2O2 and MDA content may be involved in higher salt tolerance of ‘Jinyan 4’.
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 17
Claim · model-written summary
NaCl stress reduced cucumber plant growth.
- Taxon
- cucumber
Cucumis sativust0 - Treatment
- NaCl stresse0
- Outcome
- plant growthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress decreased plant growth, chlorophyll content, quantum yield of PSII (ΦPSII),initial fluorescence yield(Fo)and non-photochemical quenching of fluorescence(NPQ).”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
NaCl stress reduced chlorophyll content.
- Taxon
- cucumberCucumis sativust0
- Treatment
- NaCl stresse0
- Outcome
- chlorophyll contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress decreased plant growth, chlorophyll content, quantum yield of PSII (ΦPSII),initial fluorescence yield(Fo)and non-photochemical quenching of fluorescence(NPQ).”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
NaCl stress reduced PSII quantum yield.
- Taxon
- cucumberCucumis sativust0
- Treatment
- NaCl stresse0
- Outcome
- quantum yield of PSII (ΦPSII)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress decreased plant growth, chlorophyll content, quantum yield of PSII (ΦPSII),initial fluorescence yield(Fo)and non-photochemical quenching of fluorescence(NPQ).”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
NaCl stress reduced initial fluorescence yield.
- Taxon
- cucumberCucumis sativust0
- Treatment
- NaCl stresse0
- Outcome
- initial fluorescence yield(Fo)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress decreased plant growth, chlorophyll content, quantum yield of PSII (ΦPSII),initial fluorescence yield(Fo)and non-photochemical quenching of fluorescence(NPQ).”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
NaCl stress reduced non-photochemical fluorescence quenching.
- Taxon
- cucumberCucumis sativust0
- Treatment
- NaCl stresse0
- Outcome
- non-photochemical quenching of fluorescence(NPQ)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl stress decreased plant growth, chlorophyll content, quantum yield of PSII (ΦPSII),initial fluorescence yield(Fo)and non-photochemical quenching of fluorescence(NPQ).”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Jinyan 4 growth was less affected by salt than Jinlu4 growth.
- Taxon
- cucumberCucumis sativust0
- Material
- ‘Jinyan 4’e0
- Treatment
- salt stresse0
- Outcome
- plant growthe0
- Direction
- less affectede0
- Comparator
- ‘Jinlu4’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant growth of ‘Jinyan 4’ was less affected by salt stress than ‘Jinlu4’”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Jinyan 4 photosynthetic apparatus was less injured than Jinlu4 under salt stress.
- Taxon
- cucumberCucumis sativust0
- Treatment
- salt stresse0
- Outcome
- photosynthetic apparatuse0
- Direction
- less injurede0
- Comparator
- ‘Jinlu4’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the photosynthetic apparatus was less injured by salt stress than ‘Jinlu4’.”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Salt stress did not affect PSII photochemical efficiency.
- Taxon
- cucumberCucumis sativust0
- Treatment
- salt stresse0
- Outcome
- photochemical efficiency of PSII (Fv/Fm)e0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photochemical efficiency of PSII (Fv/Fm) was not affected by salt stress.”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Salt stress significantly increased ascorbate peroxidase activity in Jinlu 4.
- Taxon
- cucumberCucumis sativust0
- Material
- ‘Jinlu 4’e0
- Treatment
- salt stresse0
- Outcome
- activity of ascorbate peroxidase (AsA-POD)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt stress significantly increased the activity of ascorbate peroxidase (AsA-POD) and significantly decreased superoxide dismutase (SOD) activity in ‘Jinlu 4’.”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Salt stress significantly decreased superoxide dismutase activity in Jinlu 4.
- Taxon
- cucumberCucumis sativust0
- Material
- ‘Jinlu 4’e0
- Treatment
- salt stresse0
- Outcome
- superoxide dismutase (SOD) activitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt stress significantly increased the activity of ascorbate peroxidase (AsA-POD) and significantly decreased superoxide dismutase (SOD) activity in ‘Jinlu 4’.”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Free radical production rose as NaCl increased.
- Taxon
- cucumberCucumis sativust0
- Treatment
- increasing NaCl levelse0
- Outcome
- Free radical producing ratee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Free radical producing rate, and H2O2 and MDA content increased with increasing NaCl levels”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
H2O2 content rose as NaCl increased.
- Taxon
- cucumberCucumis sativust0
- Treatment
- increasing NaCl levelse0
- Outcome
- H2O2e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Free radical producing rate, and H2O2 and MDA content increased with increasing NaCl levels”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
MDA content rose as NaCl increased.
- Taxon
- cucumberCucumis sativust0
- Treatment
- increasing NaCl levelse0
- Outcome
- MDA contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Free radical producing rate, and H2O2 and MDA content increased with increasing NaCl levels”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Jinyan 4 leaves had less H2O2 than Jinlu4 leaves.
- Taxon
- cucumberCucumis sativust0
- Material
- ‘Jinyan 4’e0
- Organ / stage
- leavese0
- Outcome
- H2O2contente0
- Direction
- lesse0
- Comparator
- ‘Jinlu4’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“less H2O2content and lipid peroxidation were observed in the leaves of ‘Jinyan 4’ than ‘Jinlu4’.”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Jinyan 4 leaves had less lipid peroxidation than Jinlu4 leaves.
- Taxon
- cucumberCucumis sativust0
- Material
- ‘Jinyan 4’e0
- Organ / stage
- leavese0
- Outcome
- lipid peroxidatione0
- Direction
- lesse0
- Comparator
- ‘Jinlu4’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“less H2O2content and lipid peroxidation were observed in the leaves of ‘Jinyan 4’ than ‘Jinlu4’.”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Higher SOD activity may contribute to Jinyan 4 salt tolerance.
- Taxon
- cucumberCucumis sativust0
- Material
- ‘Jinyan 4’e0
- Gene
- SODe0
- Outcome
- higher salt tolerancee0
- Qualifier
- higher SOD activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher SOD activity, less H2O2 and MDA content may be involved in higher salt tolerance of ‘Jinyan 4’.”
t0“cucumber (Cucumis sativus L.)”
Claim · model-written summary
Lower H2O2 and MDA may contribute to Jinyan 4 salt tolerance.
- Taxon
- cucumberCucumis sativust0
- Material
- ‘Jinyan 4’e0
- Outcome
- higher salt tolerancee0
- Qualifier
- less H2O2 and MDA contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher SOD activity, less H2O2 and MDA content may be involved in higher salt tolerance of ‘Jinyan 4’.”
t0“cucumber (Cucumis sativus L.)”
The same questions in other papers
sodium chloride · physiology: photosynthesis · Cucumis sativus (cucumber)Results differ
16 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
14 papers more in this group
See all 18 papers →sodium chloride · growth · Cucumis sativus (cucumber)Results differ
40 papers in the same direction as this paper · 12 in the opposite direction
- positive
- positive
- positive
49 papers more in this group
See all 53 papers →sodium chloride · physiology: pigments · Cucumis sativus (cucumber)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
3 papers more in this group
See all 7 papers →sodium chloride · yield · Cucumis sativus (cucumber)Results agree
1 paper in the same direction as this paper
- negative
salinity · growth · Cucumis sativus (cucumber)Results differ
8 papers in the same direction as this paper · 71 in the opposite direction
- negative
- negative
- negative
76 papers more in this group
See all 80 papers →salinity · physiology: antioxidant enzymes · Cucumis sativus (cucumber)Positive and negative results
6 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
9 papers more in this group
See all 13 papers →salinity · yield · Cucumis sativus (cucumber)Positive and negative results
11 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
10 papers more in this group
See all 14 papers →salinity · physiology: pigments · Cucumis sativus (cucumber)Positive and negative results
13 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
11 papers more in this group
See all 15 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.