Project Number: 6034-22320-004-09-R
Project Type: Reimbursable
Start Date: Nov 14, 2013
End Date: Apr 30, 2017
The objective of this project is to screen strains of the bacterium Bacillus thuringiensis (Bt), for activity against the Asian citrus psyllid (ACP) and to identify ACP-active crystal (Cry) toxins.
We will screen at least 200 Bt strains for toxicity against Asian citrus psyllid (ACP). Total crystal proteins from these strains will be purified, activated using bovine trypsin and tested for ACP toxicity. Individual Cry toxins from ACP-toxic Bt strains will be purified to homogeneity by ion-exchange and gel filtration column chromatography. These individual toxins will then be tested for ACP toxicity and identified by MALDI-TOF MS/MS.