Abstract
The present study was conducted at the Department of Laboratory, China.To know the impact of melatonin priming in alleviating the negative impact of salt stress on seed germination and seedling establishment of winter wheat (Triticum aestivum L. cv Elnilein).Wheat seeds were primed with melatonin and then subjected seedlings under salt stress.Six concentrations were used: control, salt (300 mM NaCl) four concentrations of melatonin (M) 10, 100, 500, 1000 μM with salt (300 mM NaCl) to each concentration: CT, ST, M1+ST, M2+ST, M3+ST, M4+ST.Effect of melatonin priming on seed germination under salt stress was studied and optimum melatonin concentration screened.Thereafter, three-leaf seedlings from the melatonin-primed subjected to two levels of salt stress for evaluation of the alleviation effect of melatonin on seedling establishment.Five concentrations used as follows: Control, salt stress (300 mM NaCl), salt stress (100 mM NaCl), 500 μM of melatonin (M) +300 mM NaCl, 500 μM of melatonin (M) + 100 mM NaCl: CK, S1, S2, M+S1, M+S2.The data obtained on different seed germination and seedling.Parameters measured under study were analyzed statistically using SPSS (SPSS Inc, Chicago, IL).Significantly different means of the measured data separated at the 0.05 probability level using Duncan's Multiple Range Test (DMRT).The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions.Also, salt stress decreased seedling growth attributes, water content (RWC), leaf area, and chlorophyll content, whereas melatonin priming increased these parameters.The photosynthetic rate (Pn), actual photosynthetic efficiency (ΦPSII), maximum photochemical efficiency (Fv/Fm), and potassium content (K+) in stressed seedlings inhibited, where melatonin priming improved these traits.We found that salt stress plants had increased the reactive oxygen species (ROS) malondialdehyde (MDA), hydrogen peroxide (H2O2) contents, superoxide (O2-)
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Claims 17
Claim · model-written summary
Salt stress significantly reduced seed germination rate and germination index of wheat.
- Taxon
- Triticum aestivum
Triticum aestivume1 - Material
- Elnileine1
- Treatment
- salt stresse2
- Outcome
- seed germination rate, germination indexe2
- Direction
- reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e2“The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions”
Claim · model-written summary
Melatonin priming alleviated the salt-induced reduction in seed germination rate and germination index of wheat.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- melatonin priminge2
- Outcome
- seed germination rate, germination indexe2
- Direction
- alleviatede2
- Comparator
- salt stresse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e2“The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions”
Claim · model-written summary
Salt stress significantly reduced lengths and dry weights of radicle and coleoptile of wheat.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- salt stresse2
- Outcome
- lengths, dry weights of radicle and coleoptilee2
- Direction
- reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e2“The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions”
Claim · model-written summary
Melatonin priming alleviated the salt-induced reduction in lengths and dry weights of radicle and coleoptile.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- melatonin priminge2
- Outcome
- lengths, dry weights of radicle and coleoptilee2
- Direction
- alleviatede2
- Comparator
- salt stresse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e2“The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions”
Claim · model-written summary
Salt stress significantly reduced amylase and antioxidant enzyme activities of wheat seedlings.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- salt stresse2
- Outcome
- amylase, antioxidant enzymes activitiese2
- Direction
- reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e2“The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions”
Claim · model-written summary
Melatonin priming alleviated the salt-induced reduction in amylase and antioxidant enzyme activities.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- melatonin priminge2
- Outcome
- amylase, antioxidant enzymes activitiese2
- Direction
- alleviatede2
- Comparator
- salt stresse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e2“The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions”
Claim · model-written summary
Salt stress significantly reduced soluble sugar and sucrose contents of wheat seedlings.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- salt stresse2
- Outcome
- soluble sugar, sucrose contentse2
- Direction
- reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e2“The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions”
Claim · model-written summary
Melatonin priming alleviated the salt-induced reduction in soluble sugar and sucrose contents.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- melatonin priminge2
- Outcome
- soluble sugar, sucrose contentse2
- Direction
- alleviatede2
- Comparator
- salt stresse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e2“The results revealed that salt stress caused significant reduction in seed germination rate, germination index, lengths, dry weights of radicle and coleoptile, amylase, antioxidant enzymes activities, soluble sugar, sucrose contents, while melatonin priming alleviated these reductions”
Claim · model-written summary
Salt stress decreased seedling growth attributes, relative water content and leaf area of wheat.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- salt stresse3
- Outcome
- seedling growth attributes, water content (RWC), leaf areae3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e3“Also, salt stress decreased seedling growth attributes, water content (RWC), leaf area, and chlorophyll content, whereas melatonin priming increased these parameters”
Claim · model-written summary
Melatonin priming increased seedling growth attributes, relative water content and leaf area of salt-stressed wheat.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- melatonin priminge3
- Outcome
- seedling growth attributes, water content (RWC), leaf areae3
- Direction
- increasede3
- Comparator
- salt stresse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e3“Also, salt stress decreased seedling growth attributes, water content (RWC), leaf area, and chlorophyll content, whereas melatonin priming increased these parameters”
Claim · model-written summary
Salt stress decreased chlorophyll content of wheat seedlings.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- salt stresse3
- Outcome
- chlorophyll contente3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e3“Also, salt stress decreased seedling growth attributes, water content (RWC), leaf area, and chlorophyll content, whereas melatonin priming increased these parameters”
Claim · model-written summary
Melatonin priming increased chlorophyll content of salt-stressed wheat.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- melatonin priminge3
- Outcome
- chlorophyll contente3
- Direction
- increasede3
- Comparator
- salt stresse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e3“Also, salt stress decreased seedling growth attributes, water content (RWC), leaf area, and chlorophyll content, whereas melatonin priming increased these parameters”
Claim · model-written summary
Salt stress inhibited photosynthetic rate, actual photosynthetic efficiency and maximum photochemical efficiency in wheat seedlings.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- salt stresse3
- Outcome
- photosynthetic rate (Pn), actual photosynthetic efficiency (ΦPSII), maximum photochemical efficiency (Fv/Fm)e4
- Direction
- inhibitede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e3“Also, salt stress decreased seedling growth attributes, water content (RWC), leaf area, and chlorophyll content, whereas melatonin priming increased these parameters”
e4“The photosynthetic rate (Pn), actual photosynthetic efficiency (ΦPSII), maximum photochemical efficiency (Fv/Fm), and potassium content (K+) in stressed seedlings inhibited, where melatonin priming improved these traits”
Claim · model-written summary
Melatonin priming improved photosynthetic rate, actual photosynthetic efficiency and maximum photochemical efficiency in stressed wheat seedlings.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- melatonin priminge4
- Outcome
- photosynthetic rate (Pn), actual photosynthetic efficiency (ΦPSII), maximum photochemical efficiency (Fv/Fm)e4
- Direction
- improvede4
- Comparator
- stressed seedlingse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e4“The photosynthetic rate (Pn), actual photosynthetic efficiency (ΦPSII), maximum photochemical efficiency (Fv/Fm), and potassium content (K+) in stressed seedlings inhibited, where melatonin priming improved these traits”
Claim · model-written summary
Salt stress inhibited potassium content of wheat seedlings.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- salt stresse3
- Outcome
- potassium content (K+)e4
- Direction
- inhibitede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e3“Also, salt stress decreased seedling growth attributes, water content (RWC), leaf area, and chlorophyll content, whereas melatonin priming increased these parameters”
e4“The photosynthetic rate (Pn), actual photosynthetic efficiency (ΦPSII), maximum photochemical efficiency (Fv/Fm), and potassium content (K+) in stressed seedlings inhibited, where melatonin priming improved these traits”
Claim · model-written summary
Melatonin priming improved potassium content of stressed wheat seedlings.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- melatonin priminge4
- Outcome
- potassium content (K+)e4
- Direction
- improvede4
- Comparator
- stressed seedlingse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e4“The photosynthetic rate (Pn), actual photosynthetic efficiency (ΦPSII), maximum photochemical efficiency (Fv/Fm), and potassium content (K+) in stressed seedlings inhibited, where melatonin priming improved these traits”
Claim · model-written summary
Salt stress increased malondialdehyde and hydrogen peroxide contents in wheat seedlings.
- Taxon
- Triticum aestivumTriticum aestivume1
- Material
- Elnileine1
- Treatment
- salt stresse5
- Outcome
- malondialdehyde (MDA), hydrogen peroxide (H2O2) contentse5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“winter wheat (Triticum aestivum L. cv Elnilein)”
e5“We found that salt stress plants had increased the reactive oxygen species (ROS) malondialdehyde (MDA), hydrogen peroxide (H2O2) contents”
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See all 41 papers →8 of 22 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.