Abstract
The rice plant is sensitive to soil salinity. Calcium (Ca) acts as an ameliorative agent that helps plants induce salt tolerance. This study was carried out with a comparison of the ameliorative effect of calcium on salt-stressed rice seedlings, the determination of the role of salt-responsive protein groups, and the analysis of their genetic expressions in 21-day-old rice seedlings of ten locally cultivable varieties of West Bengal. For this study, 15-day-old seedlings were treated with 200 mM of sodium chloride (NaCl) solutions along with 10 mM of calcium sulfate (CaSO 4 ) treatment. The determination of the relationship between the salt-responsive proteins and the analysis of the gene expression of those corresponding proteins were not carried out earlier on the selected ten locally cultivable rice varieties of West Bengal. The NaCl crystals were visible on the abaxial leaf surface of salt-stressed rice seedlings. The superoxide dismutase activity was increased in rice varieties, and a similar result was also expressed with calcium treatment. The fourier transform infrared spectroscopy-attenuated total reflection spectral result gave strong evidence for the presence of several salt-tolerant proteins and their genetic expression. STRING database results have suggested that the calcium treatment, coupled with the expression of the CBL4 protein, has regulated the P5CR protein of proline biosynthesis for better salt tolerance and osmotic protection. The quantitative real-time polymerase chain reaction and SDS-PAGE gel electrophoresis analysis showed that salt-tolerant varieties, Chinsurah_nona_1, and Jarava had high calcium signaling mechanisms and osmo-protection abilities.
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Claims 5
Claim · model-written summary
Salt-stressed rice seedlings had visible NaCl crystals on abaxial leaves.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- abaxial leaf surfacee0
- Treatment
- salt-stressede0
- Outcome
- NaCl crystals were visiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NaCl crystals were visible on the abaxial leaf surface of salt-stressed rice seedlings”
Claim · model-written summary
Superoxide dismutase activity increased in rice varieties and with calcium treatment.
- Taxon
- riceOryza sativae0
- Treatment
- calcium treatmente0
- Gene
- superoxide dismutasee0
- Outcome
- superoxide dismutase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The superoxide dismutase activity was increased in rice varieties, and a similar result was also expressed with calcium treatment”
Claim · model-written summary
Spectroscopy provided evidence for salt-tolerant proteins and their genetic expression.
- Taxon
- riceOryza sativat0
- Outcome
- presence of several salt-tolerant proteins and their genetic expressione0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fourier transform infrared spectroscopy-attenuated total reflection spectral result gave strong evidence for the presence of several salt-tolerant proteins and their genetic expression”
t0“rice”
Claim · model-written summary
Database analysis suggested calcium and CBL4 expression regulate P5CR in proline biosynthesis for salt tolerance.
- Taxon
- riceOryza sativat0
- Treatment
- calcium treatmente0
- Gene
- CBL4 proteine0
- Outcome
- salt tolerance and osmotic protectione0
- Qualifier
- P5CR protein of proline biosynthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“STRING database results have suggested that the calcium treatment, coupled with the expression of the CBL4 protein, has regulated the P5CR protein of proline biosynthesis for better salt tolerance and osmotic protection”
t0“rice”
Claim · model-written summary
Chinsurah_nona_1 and Jarava had high calcium signaling and osmoprotection.
- Taxon
- riceOryza sativat0
- Material
- Chinsurah_nona_1, and Jaravae0
- Outcome
- high calcium signaling mechanisms and osmo-protection abilitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt-tolerant varieties, Chinsurah_nona_1, and Jarava had high calcium signaling mechanisms and osmo-protection abilities”
t0“rice”
The same questions in other papers
calcium atom · physiology: antioxidant enzymes · Oryza sativa (rice)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.