Salicylic acid modulates ACS, NHX1, sos1 and HKT1;2 expression to regulate ethylene overproduction and Na <sup>+</sup> ions toxicity that leads to improved physiological status and enhanced salinity stress tolerance in tomato plants cv. Pusa Ruby
Yalaga Rama Rao, Mohammad Wahid Ansari, Ranjan Kumar Sahoo, Ratnum Kaul Wattal, Narendra Tuteja, Vellanki Ravi Kumar
Abstract
ratio were considerably increased under SA treatment. Likewise, antioxidant enzymes (SOD, CAT, APX and GR) profile were better in SA treated plant. The present findings suggest that SA reverse the negative effects of salinity stress and stress induced ET production by modulating ACS, NHX, sos1 and HKT1;2 transcript level, and improving various growth and physiological parameters, and antioxidants enzymes profile. This will contribute to a better understanding of salinity stress tolerance mechanisms of tomato plants involving SA and ET cross talk and ions homeostasis to develop more tolerant plant.
Topics & Concepts
Salicylic acidSalinityShootBiologySodiumJasmonic acidProlineAPXBiochemistryHorticultureEnzymeChemistryGlutathioneAmino acidEcologyOrganic chemistryPlant Stress Responses and TolerancePlant responses to water stressPlant Micronutrient Interactions and Effects