Abstract
Soil salinity greatly impairs plant growth and crop productivity. Rice (Oryza sativa L.) is a salt-sensitive crop. To better understand the molecular mechanisms of salt tolerance in roots, the BGISEQ-500 sequencing platform was employed to elucidate transcriptome changes in rice roots after 0, 3, 24, and 72 h of salt stress. The results showed that root K+ content decreased and Na+ content increased rapidly after the initial stage of salt stress, but that fresh and dry weight in root did not significantly reduce. Compared to the control (no salt stress), 1,292, 453, and 486 differentially expressed genes (DEGs) were upregulated, respectively, and 939, 894, and 646 DEGs were downregulated, respectively, after 3, 24, and 72 h of salt treatment. The number of DEGs was higher during the early stage of salt stress (3 h) than in later stages (24 and 72 h). A number of DEGs involved in the response and adaptation to salt stress were related to protein kinase and calcium-binding, plant hormone signaling and metabolism, transcriptional regulation, metabolic pathways, antioxidant activity, and ion transport. Many of these DEGs were activated during the early stage of salt stress (3 h). The present study reports candidate salt-stressresponsive genes with the potential to genetically improve salt tolerance in rice elsewhere.
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Claims 12
Claim · model-written summary
Root K+ content fell rapidly after salt stress began.
- Taxon
- Rice
Oryza sativae1 - Treatment
- salt stresse0
- Outcome
- root K+ contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root K+ content decreased and Na+ content increased rapidly after the initial stage of salt stress”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
Root Na+ content rose rapidly after salt stress began.
- Taxon
- RiceOryza sativae1
- Treatment
- salt stresse0
- Outcome
- Na+ contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root K+ content decreased and Na+ content increased rapidly after the initial stage of salt stress”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
Root fresh and dry weight did not significantly decrease after initial salt stress.
- Taxon
- RiceOryza sativae2
- Treatment
- salt stresse1
- Outcome
- fresh and dry weight in roote0
- Direction
- did not significantly reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh and dry weight in root did not significantly reduce”
e1“initial stage of salt stress”
e2“Rice (Oryza sativa L.)”
Claim · model-written summary
At 3 h of salt treatment, 1,292 genes were upregulated against control.
- Taxon
- RiceOryza sativae1
- Treatment
- 3, 24, and 72 h of salt treatmente0
- Outcome
- differentially expressed genes (DEGs)e0
- Direction
- upregulatede0
- Value
- 1,292e0
- Qualifier
- 3e0
- Comparator
- control (no salt stress)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control (no salt stress), 1,292, 453, and 486 differentially expressed genes (DEGs) were upregulated, respectively, and 939, 894, and 646 DEGs were downregulated, respectively, after 3, 24, and 72 h of salt treatment.”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
At 24 h of salt treatment, 453 genes were upregulated against control.
- Taxon
- RiceOryza sativae1
- Treatment
- salt treatmente0
- Outcome
- differentially expressed genes (DEGs)e0
- Direction
- upregulatede0
- Value
- 453e0
- Qualifier
- 24e0
- Comparator
- control (no salt stress)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control (no salt stress), 1,292, 453, and 486 differentially expressed genes (DEGs) were upregulated, respectively, and 939, 894, and 646 DEGs were downregulated, respectively, after 3, 24, and 72 h of salt treatment.”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
At 72 h of salt treatment, 486 genes were upregulated against control.
- Taxon
- RiceOryza sativae1
- Treatment
- salt treatmente0
- Outcome
- differentially expressed genes (DEGs)e0
- Direction
- upregulatede0
- Value
- 486e0
- Qualifier
- 72e0
- Comparator
- control (no salt stress)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control (no salt stress), 1,292, 453, and 486 differentially expressed genes (DEGs) were upregulated, respectively, and 939, 894, and 646 DEGs were downregulated, respectively, after 3, 24, and 72 h of salt treatment.”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
At 3 h of salt treatment, 939 genes were downregulated against control.
- Taxon
- RiceOryza sativae1
- Treatment
- salt treatmente0
- Outcome
- DEGse0
- Direction
- downregulatede0
- Value
- 939e0
- Qualifier
- 3e0
- Comparator
- control (no salt stress)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control (no salt stress), 1,292, 453, and 486 differentially expressed genes (DEGs) were upregulated, respectively, and 939, 894, and 646 DEGs were downregulated, respectively, after 3, 24, and 72 h of salt treatment.”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
At 24 h of salt treatment, 894 genes were downregulated against control.
- Taxon
- RiceOryza sativae1
- Treatment
- salt treatmente0
- Outcome
- DEGse0
- Direction
- downregulatede0
- Value
- 894e0
- Qualifier
- 24e0
- Comparator
- control (no salt stress)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control (no salt stress), 1,292, 453, and 486 differentially expressed genes (DEGs) were upregulated, respectively, and 939, 894, and 646 DEGs were downregulated, respectively, after 3, 24, and 72 h of salt treatment.”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
At 72 h of salt treatment, 646 genes were downregulated against control.
- Taxon
- RiceOryza sativae1
- Treatment
- salt treatmente0
- Outcome
- DEGse0
- Direction
- downregulatede0
- Value
- 646e0
- Qualifier
- 72e0
- Comparator
- control (no salt stress)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control (no salt stress), 1,292, 453, and 486 differentially expressed genes (DEGs) were upregulated, respectively, and 939, 894, and 646 DEGs were downregulated, respectively, after 3, 24, and 72 h of salt treatment.”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
More genes were differentially expressed at 3 h than at 24 or 72 h.
- Taxon
- RiceOryza sativae1
- Outcome
- number of DEGse0
- Direction
- highere0
- Comparator
- later stages (24 and 72 h)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of DEGs was higher during the early stage of salt stress (3 h) than in later stages (24 and 72 h).”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
Salt response genes were related to kinase and calcium binding, hormone signaling, transcription, metabolism, antioxidants and ion transport.
- Taxon
- RiceOryza sativae1
- Gene
- protein kinasee0
- Outcome
- DEGs involved in the response and adaptation to salt stresse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A number of DEGs involved in the response and adaptation to salt stress were related to protein kinase and calcium-binding, plant hormone signaling and metabolism, transcriptional regulation, metabolic pathways, antioxidant activity, and ion transport.”
e1“Rice (Oryza sativa L.)”
Claim · model-written summary
Many salt response genes were activated at 3 h.
- Taxon
- RiceOryza sativae1
- Outcome
- DEGse0
- Direction
- activatede0
- Qualifier
- early stage of salt stress (3 h)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Many of these DEGs were activated during the early stage of salt stress (3 h).”
e1“Rice (Oryza sativa L.)”
The same questions in other papers
salinity · growth · Oryza sativa (rice)Positive and negative results
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