Abstract
Various abiotic stresses may affect the germination, growth, and yield of direct-seeded vegetable crops. Seed priming with effective antioxidant mediators may alleviate these environmental stresses by maintaining uniformity in seed germination and improving the subsequent health of developing seedlings. Salt-induced stress has become a limiting factor for the successful cultivation of Brassica rapa L., especially in Southeast Asian countries. The present study was performed to elucidate the efficacy of seed priming using selenium (Se) in mitigating salt-induced oxidative stress in turnip crops by reducing the uptake of Na + . In this study, we administered three different levels of Se (Se-1, 75 μmol L −1 ; Se-2, 100 μmol L −1 ; and Se-3, 125 μmol L −1 ) alone or in combination with NaCl (200 mM). Conspicuously, salinity and Se-2 modulated the expression levels of the antioxidant genes, including catalase ( CAT ), peroxidase ( POD ), superoxide dismutase ( SOD ), and ascorbate peroxidase ( APX ). The upregulated expression of stress-responsive genes alleviated salt stress by scavenging the higher reactive oxygen species (ROS) level. The stress ameliorative potential of Se (Se-2 = 100 μmol L −1 ) enhanced the final seed germination percentage, photosynthetic content, and seedling biomass production up to 48%, 56%, and 51%, respectively, under stress. The advantageous effects of Se were attributed to the alleviation of salinity stress through the reduction of the levels of malondialdehyde (MDA), proline, and H 2 O 2 . Generally, treatment with Se-2 (100 μmo L −1 ) was more effective in enhancing the growth attributes of B. rapa compared to Se-1 (75 μmo L −1 ) and Se-3 (125 μmo L −1 ) under salt-stressed and non-stressed conditions. The findings of the current study advocate the application of the Se seed priming technique as an economical and eco-friendly approach for salt stress mitigation in crops grown under saline conditions.
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Claims 7
Claim · model-written summary
Salinity and Se-2 changed expression of CAT, POD, SOD, and APX antioxidant genes.
- Taxon
- Brassica rapa L.
Brassica rapat0 - Treatment
- salinity and Se-2e0
- Gene
- catalase ( CAT ), peroxidase ( POD ), superoxide dismutase ( SOD ), and ascorbate peroxidase ( APX )e0
- Outcome
- expression levels of the antioxidant genese0
- Direction
- modulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity and Se-2 modulated the expression levels of the antioxidant genes, including catalase ( CAT ), peroxidase ( POD ), superoxide dismutase ( SOD ), and ascorbate peroxidase ( APX ).”
t0“Brassica rapa L.”
Claim · model-written summary
Se-2 under salt stress increased final seed germination percentage by up to 48%.
- Taxon
- Brassica rapa L.Brassica rapat0
- Treatment
- Se-2 = 100 μmol L −1e0
- Outcome
- final seed germination percentagee0
- Direction
- enhancede0
- Value
- 48%e0
- Qualifier
- under stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stress ameliorative potential of Se (Se-2 = 100 μmol L −1 ) enhanced the final seed germination percentage, photosynthetic content, and seedling biomass production up to 48%, 56%, and 51%, respectively, under stress.”
t0“Brassica rapa L.”
Claim · model-written summary
Se-2 under salt stress increased photosynthetic content by up to 56%.
- Taxon
- Brassica rapa L.Brassica rapat0
- Treatment
- Se-2 = 100 μmol L −1e0
- Outcome
- photosynthetic contente0
- Direction
- enhancede0
- Value
- 56%e0
- Qualifier
- under stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stress ameliorative potential of Se (Se-2 = 100 μmol L −1 ) enhanced the final seed germination percentage, photosynthetic content, and seedling biomass production up to 48%, 56%, and 51%, respectively, under stress.”
t0“Brassica rapa L.”
Claim · model-written summary
Se-2 under salt stress increased seedling biomass production by up to 51%.
- Taxon
- Brassica rapa L.Brassica rapat0
- Treatment
- Se-2 = 100 μmol L −1e0
- Outcome
- seedling biomass productione0
- Direction
- enhancede0
- Value
- 51%e0
- Qualifier
- under stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stress ameliorative potential of Se (Se-2 = 100 μmol L −1 ) enhanced the final seed germination percentage, photosynthetic content, and seedling biomass production up to 48%, 56%, and 51%, respectively, under stress.”
t0“Brassica rapa L.”
Claim · model-written summary
Selenium reduced MDA, proline, and hydrogen peroxide levels under salinity stress.
- Taxon
- Brassica rapa L.Brassica rapat0
- Treatment
- See0
- Outcome
- levels of malondialdehyde (MDA), proline, and H 2 O 2e0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The advantageous effects of Se were attributed to the alleviation of salinity stress through the reduction of the levels of malondialdehyde (MDA), proline, and H 2 O 2 .”
t0“Brassica rapa L.”
Claim · model-written summary
Se-2 enhanced growth attributes more than Se-1 or Se-3 under salt-stressed and unstressed conditions.
- Taxon
- B. rapaBrassica rapae0
- Treatment
- Se-2 (100 μmo L −1 )e0
- Outcome
- growth attributese0
- Direction
- more effective in enhancinge0
- Qualifier
- under salt-stressed and non-stressed conditionse0
- Comparator
- Se-1 (75 μmo L −1 ) and Se-3 (125 μmo L −1 )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment with Se-2 (100 μmo L −1 ) was more effective in enhancing the growth attributes of B. rapa compared to Se-1 (75 μmo L −1 ) and Se-3 (125 μmo L −1 ) under salt-stressed and non-stressed conditions.”
Claim · model-written summary
The authors advocate selenium seed priming for salt stress mitigation in crops under saline conditions.
Verbatim
e0“The findings of the current study advocate the application of the Se seed priming technique as an economical and eco-friendly approach for salt stress mitigation in crops grown under saline conditions.”
The same questions in other papers
selenium atom · physiology: oxidative · Brassica rapa (field mustard)Positive and negative results
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See all 5 papers →selenium atom · growth · Brassica rapa (field mustard)Positive and negative results
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See all 7 papers →selenium atom · physiology: photosynthesis · Brassica rapa (field mustard)Results agree
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selenium atom · yield · Brassica rapa (field mustard)Results agree
3 papers in the same direction as this paper
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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.