BnDREB1 confers cadmium tolerance in ramie.

ABSTRACT: Cadmium (Cd) is a toxic heavy metal whose contamination in soil threatens food safety, agricultural production, and human health. To date, phytoremediation is a low-cost and environmentally friendly method for eliminating Cd contamination. In this study, we report a gene from ramie (Boehmeria nivea) that encodes a dehydration responsive element binding (DREB) factor associated with plant tolerance to Cd, namely BnDREB1. The open reading frame of BnDREB1 comprises 873 bp encoding 290 amino acids and includes a characteristic AP2 domain. Its cloned promoter sequence contains various hormone and stress responsive elements. Quantitative RT-PCR analysis showed that BnDREB1 is expressed in different organs of ramie. Treatments with polyethylene glycol (PEG), abscisic acid (ABA), and Cd upregulat

SUBMITTER: Zhang X 

PROVIDER: S-EPMC11971442 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature