Effect of salt stress on ion concentration, proline content, antioxidant enzyme activities and gene expression in tomato cultivars.

ABSTRACT: Salinity is a constraint limiting plant growth and productivity of crops throughout the world. Understanding the mechanism underlying plant response to salinity provides new insights into the improvement of salt tolerance-crops of importance. In the present study, we report on the responses of twenty cultivars of tomato. We have clustered genotypes into scale classes according to their response to increased NaCl levels. Three local tomato genotypes, representative of different saline scale classes, were selected for further investigation. During early (0 h, 6 h and 12 h) and later (7 days) stages of the response to salt treatment, ion concentrations (Na+, K+  and Ca2+), proline content, enzyme activities (catalase, ascorbate peroxidase and guiacol peroxidase) were recorded. qPCR analysis o

SUBMITTER: Gharsallah C 

PROVIDER: S-EPMC5091694 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature