Effects of the plant-growth-promoting rhizobacteria (PGPRs) on expression of salt stress related genes in tomato plants under drought stress conditions
Project no. 23011 · Status: Kapanmış (Yayın bekleniyor) · 2021
Summary
<p>Climate change, hunger and food insecurity are among the issues that the agricultural sector struggles with today. During critical stages of flowering and seed development, tomato plants are vulnerable to drought stress, and an increase in carbon levels also results in reduced yields. Decreased tomato productivity, increased disease and decreased fruit quality will all be due to drought. As a result, emerging biotechnological interventions should focus on increasing plant yield and stress tolerance. The importance of the <em>NAC</em> and <em>NHX</em> genes and their benefits in improving abiotic stress resistance of plant growth promoting rhizobacteria (PGPR) are widely understood. The potential of a group of <em>SINAC </em>and <em>SINHX</em>genes to control drought stress tolerance in the presence of a bacterial species (113-Bacillus megaterium) in <em>Solanum lycopersicum</em> is the subject of this study. In this study, expression levels of 4 <em>SINAC</em> genes and 4 SINHX genes were investigated using Real-time PCR technique. Overall, in all studied genes, <em>SINAC</em> and <em>SINHX</em> had increased expression in leaf tissues at different levels and times of drought stress compared to the control sample. Furthermore, inoculation of B. megaterium into leaf tissue increased the relative expression of both genes compared to both control samples and samples exposed to drought stress alone. The results showed that the transcript accumulation of the indicated genes was regulated under different levels of drought stress. Once the naturally resistant <em>SINAC</em> and <em>SINHX</em> genes have been discovered and their relationship to drought stress determined, transgenic technology can be used to improve innate tolerance in future crops.</p>