Biotech Updates

Expression of Arabidopsis Bax Inhibitor-1 in Sugarcane Confers Drought Tolerance

February 17, 2016

The sustainability of global crop production is critically dependent on improving tolerance of crops to various environmental stresses, including drought stress. Thus, identification of genes that confer stress tolerance has become a top priority.

Daniel Alves Ramiro of Universidade de São Paulo in Brazil now show that expression of a cell death suppressor, Bax Inhibitor-1 from Arabidopsis thaliana (AtBI-1) in sugarcane (Saccharum sp.), can increase its tolerance to long-term water stress conditions. The trait could be an effect of the increased tolerance of the transgenic sugarcane to induction of endoplasmic reticulum (ER) stress caused by water deficit.

The results suggest that suppression of ER stress in C4 grasses can be an effective means of conferring improved tolerance to long-term water deficit.

For more information on the study, read the full article on Plant Biotechnology Journal.