2015
DOI: 10.1007/s11738-015-1910-z
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Differential transcript abundance of salt overly sensitive (SOS) pathway genes is a determinant of salinity stress tolerance of wheat

Abstract: Salt overly sensitive (SOS) pathway genes, SOS1 (plasma membrane Na ? /H ? antiporter), SOS2 (CBL interacting protein kinase 24), and SOS3 (calcineurin B like protein 4) are associated with active efflux of toxic sodium ions (Na ? ) from cytosol and thus confer salinity tolerance in glycophytic plants such as Arabidopsis. The role of SOS pathway genes SOS2 and SOS3 in salinity tolerance of wheat is rarely studied. One-month-old seedlings of three bread wheat genotypes namely, HD 2009, HD2687 and Kharchia 65 we… Show more

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Cited by 46 publications
(19 citation statements)
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“…Moreover, the Na + content of leaves treated with exogenous LNPs was significantly lower compared to that of salt-stressed plants. Wheat seedlings treated with LNPs selectively excluded Na + from leaves, which are the basis tissue of photosynthesis (Lekshmy et al, 2015). Wheat seedlings treated with LNP and LNP-2 exhibited lower leaf Na + content and thus should be better adapted to salt stress.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Moreover, the Na + content of leaves treated with exogenous LNPs was significantly lower compared to that of salt-stressed plants. Wheat seedlings treated with LNPs selectively excluded Na + from leaves, which are the basis tissue of photosynthesis (Lekshmy et al, 2015). Wheat seedlings treated with LNP and LNP-2 exhibited lower leaf Na + content and thus should be better adapted to salt stress.…”
Section: Discussionmentioning
confidence: 99%
“…NHX, an Na + /K + antiporter localized in vacuolar membranes, can mediate Na + regionalization into vacuoles (Gaxiola et al, 2001). Under 200 mM NaCl concentration, SOS1 and NHX1 expression in salt-tolerant wheat genotypes increased significantly, thereby improving Na + exclusion and lowering the Na + /K + ratio (Lekshmy et al, 2015). In this study, TaSOS1 and TaNHX2 overexpression were significantly up-regulated in wheat seedlings treated with LNPs.…”
Section: Discussionmentioning
confidence: 99%
“…120 Transcriptome analysis in wheat genotypes revealed that NHX1 and the SOS pathway-related gene expression levels in salt-tolerant genotypes were higher in comparison with their expression in the other genotypes. 121 Moreover, similar research in Aegilops tauschii during long-term exposure to saline stress demonstrated that genes encoding transporters and channels including SOS1, NHXs, HAKs, with contribution to K + hemostasis have been up-regulated. 93 In addition, it was shown that ENA1, which encodes the P-type ATPase required for Na + efflux is expressed by elevation in cytosolic Ca 2+ concentration.…”
Section: Regardless Of Different Functions Of Escbl10a Andmentioning
confidence: 92%
“…Among the salt overly sensitive (SOS) genes, SOS1 is a Na + /H + antiporter located in the cell membrane. Its role has already been demonstrated in cytosolic Na + homeostasis by different researchers (Ramezani et al, 2013;Sathee et al, 2015;Yadav et al, 2012). It has been reported that TaSOS1 experssion was up-regulated in the root and the shoot of wheat seedlings under saline condition.…”
Section: Introductionmentioning
confidence: 82%