Bacillus thuringiensis (Bt) is a rod-shaped 1-1.2 microns, gram positive, facultative anaerobic, spore forming bacterium. During sporulation, it produces insecticidal crystal proteins (ICP) or δ-endotoxins or Cry proteins. The primary insecticidal activity of Bt is due to the ICP. The Cry proteins were grouped according to their specific toxicity towards certain insect orders.

Main Researcher: Dr Siti Ramlah A. Ali
Email: ramlah@mpob.gov.my