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Ultrastructure of the unusual crystal of the HD-1 isolate of Bacillus thuringiensis var. kurstaki

1979; Elsevier BV; Volume: 34; Issue: 3 Linguagem: Inglês

10.1016/0022-2011(79)90084-3

1096-0805

E. S. Sharpe, F. L. Baker,

Identification and Quantification in Food

The strain 273 B, the type strain of a H serotype of Bacillus thuringiensis not yet characterized: B. thuringiensis subsp. cameroun, serotype H32, was isolated from soil samples collected in Cameroon. This strain produces cuboidal parasporal bodies composed of two major proteins of 53 kDa and 35 kDa. N-terminal sequences of the major proteins share no homology with published sequences. Only the 35 kDa protein is susceptible to digestion by trypsin. A complex array of 9 plasmids was revealed.