Apical?root apoplastic acidification affects cell wall extensibility in wheat under salinity stress

Plant salt tolerance is associated with a high rate of root growth. Although growth governed by cell wall and apoplastic pH, the relationship between these factors in elongation zone under salinity stress remains unclear. Herein, we assess pH- expansin-dependent extensibility, expansin expression salt-sensitive (Yongliang-15) -tolerant (JS-7) cultivars stress. A six-day 80 mM NaCl treatment significantly reduced apical pH both cultivars. Using pH-dependent extensibility experiment, found that, 0 treatment, optimal for loosening was 6.0 salinity-tolerant cultivar 4.6 salinity-sensitive cultivar. Under 5.0 mitigated stiffness caused but promoted stiffening Salinity altered differentially affecting 6.0. TaEXPA8 might be relative to at 5.0, whereas TaEXPA5 These results elucidate expansins zone, important implications enhancing plant