Bacillus thuringiensis (Bt) is a rod-shaped, Gram-positive soil bacterium that belongs to the phylum Firmicutes and genus Bacillus. It spore-forming bacterium. During sporulation, it produces wide range of crystalline proteins are toxic different orders insects. Sporulation, structure assembly, germination essential stages in cell cycle B. thuringiensis. The majority studies on these issues hav...

Here, we report the genome sequence of nematicidal Bacillus thuringiensis DB27, which provides first insights into the genetic determinants of its pathogenicity to nematodes. The genome consists of a 5.7-Mb chromosome and seven plasmids, three of which contain genes encoding nematicidal proteins.

Bacillus anthracis, Bacillus cereus, and Bacillus thuringiensis are members of the Bacillus cereus group of bacteria, demonstrating widely different phenotypes and pathological effects. B. anthracis causes the acute fatal disease anthrax and is a potential biological weapon due to its high toxicity. B. thuringiensis produces intracellular protein crystals toxic to a wide number of insect larvae...

Selection with Bacillus thuringiensis subsp. kurstaki, which contains CryIA and CryII toxins, caused a >200-fold cross-resistance to CryIF toxin from B. thuringiensis subsp. aizawai in the diamondback moth, Plutella xylostella. CryIE was not toxic, but CryIB was highly toxic to both selected and unselected larvae. The results show that extremely high levels of cross-resistance can be conferred ...

Novel variants of Bacillus thuringiensis were isolated from the phylloplane of deciduous and conifer trees as well as of other plants. These isolates displayed a range of toxicity towards Trichoplusia ni. Immunoblot and toxin protein analysis indicate that these strains included representatives of the three principal B. thuringiensis pathotypes active against larvae of the orders Lepidoptera, D...

Crystalline inclusion bodies resembling those seen in Clostridium cochlearium were detected in cultures of Bacillus thuringiensis infected with bacteriophage.

The previous report1) on spores of Bacillus moritai described that even when massive quantities of the spores were given orally to mice, these were not detectable in the blood. Whether or not a long-term feeding test also gives similar results was re-examined, as Stuart2) reported that Bacillus thuringiensis invaded various tissues of mice when fed a diet containing the spores, although rapid c...

Three H14 influenza A virus (IAV) isolates recovered in 2010 during routine virus surveillance along the Mississippi Migratory Bird Flyway in Wisconsin, U.S.A. raised questions about the natural history of these rare viruses. These were the first H14 IAV isolates recovered in the Western Hemisphere and the only H14 IAV isolates recovered since the original four isolates in 1982 in Asia. Full le...