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Metabolite profiling and gene expression of Na/K transporter analyses reveal mechanisms of the difference in salt tolerance between barley and rice
- Source :
- Plant Physiology and Biochemistry. 130:248-257
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Barley (Hordeum vulgare) and rice (Oryza sativa) differ greatly in their salt tolerance, although both species belong to the Poaceae family. To understand the mechanisms in the difference of salt tolerance between the two species, the responses of ionome, metabolome and gene expression of Na and K transporters to the different salt treatments were analyzed using 4 barley and 4 rice genotypes differing in salt tolerance. In comparison with 4 rice genotypes, four barley genotypes showed better plant growth, lower shoot Na concentration and higher K concentration at the 9 day after salt treatments. There was a dramatic difference in absolute expression levels of SOS, HKT and NHX family genes between barley and rice, which might account for their difference in Na/K homeostasis and salt tolerance. Moreover, rice leaves accumulated excess Na under salt treatments, which caused serious damages to physiological metabolisms based on metabolomic analysis, but barley leaves had lower Na concentration and small changes in the most metabolites. These results provide useful insights into the molecular mechanism in the difference of salt tolerance between rice and barley.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Genotype
Physiology
Plant Science
Real-Time Polymerase Chain Reaction
01 natural sciences
03 medical and health sciences
Metabolomics
Gene Expression Regulation, Plant
Botany
Genetics
Metabolome
Homeostasis
Poaceae
Oryza sativa
Chemistry
Sodium
food and beverages
Plant physiology
Hordeum
Oryza
Plant Transpiration
Salt Tolerance
030104 developmental biology
Shoot
Potassium
Hordeum vulgare
Sodium-Potassium-Exchanging ATPase
Transcriptome
Ionomics
010606 plant biology & botany
Subjects
Details
- ISSN :
- 09819428
- Volume :
- 130
- Database :
- OpenAIRE
- Journal :
- Plant Physiology and Biochemistry
- Accession number :
- edsair.doi.dedup.....07e16912cb9011f02597d2ad380fba57