Characterization of cadmium-responsive MicroRNAs and their target genes in maize (Zea mays) roots.

ABSTRACT:

Background

Current research has shown that microRNAs (miRNAs) play vital roles in plant response to stress caused by heavy metals such as aluminum, arsenic, cadmium (Cd), and mercury. Cd has become one of the most hazardous pollutants in the environment. Maize can be a potential model to study phytoremediation of Cd-contaminated soil owing to its large biomass production. However, little is known about miRNAs as a response to Cd stress in maize.

Results

To investigate the role of miRNAs in response to Cd stress, roots of seedlings of the inbred maize lines B73 and Mo17 were collected and treated with 200 mg/L CdCl₂·2.5 H₂O over different exposure times. Enzyme activities of superoxide dismutase and peroxidase were measured to confirm Cd stress. The expr

SUBMITTER: Gao J 

PROVIDER: S-EPMC6498490 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature