Selenium Modulates the Level of Auxin to Alleviate the Toxicity of Cadmium in Tobacco.

ABSTRACT: Cadmium (Cd) is an environmental pollutant that potentially threatens human health worldwide. Developing approaches for efficiently treating environmental Cd is a priority. Selenium (Se) plays important role in the protection of plants against various abiotic stresses, including heavy metals. Previous research has shown that Se can alleviate Cd toxicity, but the molecular mechanism is still not clear. In this study, we explore the function of auxin and phosphate (P) in tobacco (Nicotiana tabacum), with particular focus on their interaction with Se and Cd. Under Cd stress conditions, low Se (10 μM) significantly increased the biomass and antioxidant capacity of tobacco plants and reduced uptake of Cd. We also measured the auxin concentration and expression of auxin-relative genes in tobacco

SUBMITTER: Luo Y 

PROVIDER: S-EPMC6696094 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature