Plasmid transfer between strains of Bacillus thuringiensis infecting Galleria mellonella and Spodoptera littoralis.

摘要: To determine the possibility of plasmid transfer occurring between strains Bacillus thuringiensis in infected lepidopterous larvae, Galleria mellonella and Spodoptera littoralis were with two or more B. resulting bacteria from dead insects examined for transfer. Transfer rates plasmids coding crystal production tetracycline resistance high, reaching levels similar to those obtained laboratory broth cultures. was higher G. than S. littoralis, probably due greater ability colonize larvae. In cultures, also able into sporeforming present soil samples. The results suggest that occurs nature, new combinations delta-endotoxins within populations bacteria.