Molecular Responses to Cadmium Exposure in Two Contrasting Durum Wheat Genotypes.

ABSTRACT: Cadmium is a heavy metal that can be easily accumulated in durum wheat kernels and enter the human food chain. Two near-isogenic lines (NILs) with contrasting cadmium accumulation in grains, High-Cd or Low-Cd (H-Cd NIL and L-Cd NIL, respectively), were used to understand the Cd accumulation and transport mechanisms in durum wheat roots. Plants were cultivated in hydroponic solution, and cadmium concentrations in roots, shoots and grains were quantified. To evaluate the molecular mechanism activated in the two NILs, the transcriptomes of roots were analyzed. The observed response is complex and involves many genes and molecular mechanisms. We found that the gene sequences of two basic helix-loop-helix (bHLH) transcription factors (bHLH29 and bHLH38) differ between the two genotypes. In addi

SUBMITTER: Sabella E 

PROVIDER: S-EPMC8306872 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature