Bacillus thuringiensis serovar tolworthi strain Pasteur Institute

Bacillus thuringiensis serovar tolworthi, strain Pasteur Institute, is a Gram-positive, rod-shaped bacterium characterized by its facultative anaerobic metabolism. It is motile due to the presence of flagella, allowing it to navigate its host-associated habitats effectively. This strain exhibits mesophilic growth, thriving within moderate temperature ranges. Bacillus thuringiensis serovar tolworthi is notable for its biotic relationships, being free-living and associated with various hosts, including Homo sapiens, Triticum aestivum (wheat), Solanum lycopersicum (tomato), and multiple insect orders such as Lepidoptera, Diptera, and Coleoptera. This diverse host range suggests its ecological versatility and potential interactions within various ecosystems. The strain is capable of sporulation, a critical survival mechanism that allows it to endure unfavorable conditions. It has three replicons and a single membrane structure, which is typical for bacteria in its genus. Pathogenicity is a significant concern, as this strain can cause health effects such as septicemia in animals and humans, as well as pitted keratolysis. The ecological insight provided by Bacillus thuringiensis serovar tolworthi lies in its dual role as both a pathogen and a natural biocontrol agent against pests, particularly in agriculture. Its relationship with crops and insects highlights its importance in both disease dynamics and pest management strategies, showcasing the complexity of microbial interactions in agricultural ecosystems.