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Biochemical, physiological and molecular evaluation of rice cultivars differing in salt tolerance at the seedling stage
- Source :
- Physiology and molecular biology of plants : an international journal of functional plant biology. 23(3)
- Publication Year :
- 2016
-
Abstract
- Changes in the antioxidant enzymes, lipid peroxidation, sodium and potassium, chlorophyll, H2O2 and proline content were monitored in the leaves of 42 rice varieties which were not yet well-documented for the salinity tolerance under different salinity levels. The tolerant varieties (FL478, Hassani, Shahpasand, Gharib and Nemat) showed signs of tolerance (lower Na+/K+ ratio, high proline accumulation, less membrane damage, lower H2O2 production, and higher superoxide dismutase and catalase activity) very well. The positive relationship between the level of salt tolerance and the amount of proline accumulation in the rice varieties support the important role of proline under the salt stress. The varieties were genotyped for 12 microsatellite markers that were closely linked to SalTol QTL. The results of association analysis indicated that RM1287, RM8094, RM3412 and AP3206 markers had the high value of R2 for the regression models of the studied traits. It shows the important role of SalTol in controlling physio-biochemical traits. The results can be used in the future marker assisted selection (MAS) directly, if the results are confirmed.
- Subjects :
- 0106 biological sciences
0301 basic medicine
biology
Physiology
Plant physiology
Plant Science
biology.organism_classification
01 natural sciences
Salinity
Superoxide dismutase
03 medical and health sciences
Horticulture
chemistry.chemical_compound
030104 developmental biology
chemistry
Catalase
Seedling
Chlorophyll
Botany
biology.protein
Proline
Cultivar
Molecular Biology
010606 plant biology & botany
Research Article
Subjects
Details
- ISSN :
- 09715894
- Volume :
- 23
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Physiology and molecular biology of plants : an international journal of functional plant biology
- Accession number :
- edsair.doi.dedup.....812ea98189f56409122875659e4bb164