The application of a biostimulant based on tannins affects root architecture and improves tolerance to salinity in tomato plants.

ABSTRACT: Roots have important roles for plants to withstand adverse environmental conditions, including salt stress. Biostimulant application was shown to enhance plant resilience towards abiotic stresses. Here, we studied the effect of a tannin-based biostimulant on tomato (Solanum lycopersicum L.) grown under salt stress conditions. We investigated the related changes at both root architecture (via imaging and biometric analysis) and gene expression (RNA-Seq/qPCR) levels. Moreover, in order to identify the main compounds potentially involved in the observed effects, the chemical composition of the biostimulant was evaluated by UV/Vis and HPLC-ESI-Orbitrap analysis. Sixteen compounds, known to be involved in root development and having a potential antioxidant properties were identified. Significan

SUBMITTER: Campobenedetto C 

PROVIDER: S-EPMC7801735 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature