Impacts of elevated CO₂ on exogenous Bacillus thuringiensis toxins and transgene expression in transgenic rice under different levels of nitrogen.

ABSTRACT: Recent studies have highlighted great challenges of transgene silencing for transgenic plants facing climate change. In order to understand the impacts of elevated CO₂ on exogenous Bacillus thuringiensis (Bt) toxins and transgene expression in transgenic rice under different levels of N-fertilizer supply, we investigated the biomass, exogenous Bt toxins, Bt-transgene expression and methylation status in Bt rice exposed to two levels of CO₂ concentrations and nitrogen (N) supply (1/8, 1/4, 1/2, 1 and 2 N). It is elucidated that the increased levels of global atmospheric CO₂ concentration will trigger up-regulation of Bt toxin expression in transgenic rice, especially with appropriate increase of N fertilizer supply, while, to some extent, the exogenous Bt-tr

SUBMITTER: Jiang S 

PROVIDER: S-EPMC5676734 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature