Updating the H‐antigen classification ofBacillus thuringiensis
| Autor: | M.-M. Lecadet, Philippe Laurent, Isabelle Thiery, H. Ripouteau, Emmanuel Frachon, V. Cosmao Dumanoir, Sylviane Hamon |
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| Rok vydání: | 1999 |
| Předmět: |
Serotype
Antigens Bacterial Bacillaceae Bacillus thuringiensis Toxins biology Bacterial Toxins Bacillus thuringiensis General Medicine Subspecies H antigen biology.organism_classification Applied Microbiology and Biotechnology Bacillales Bacterial Typing Techniques Microbiology Endotoxins Hemolysin Proteins Bacterial Proteins Cereus Flagella Serotyping Bacteria Biotechnology |
| Zdroj: | Journal of Applied Microbiology. 86:660-672 |
| ISSN: | 1365-2672 1364-5072 |
| Popis: | The classification of Bacillus thuringiensis strains has been revised and updated based on flagellar antigens which have been in use for many years. Sixty-nine serotypes and 13 sub-antigenic groups have now been identified, giving 82 serovars among the 3500 B. thuringiensis isolates of the IEBC Collection. The number of serovars has gradually increased with the total number of strains. The biochemical characters used have also been investigated and their value assessed for identification of B. thuringiensis at the subspecies level. A crystal analysis was carried out in terms of morphology, delta-endotoxin profiles and larvicidal activity for the newly identified serovars. It was found that atypical crystals, some with novel components, are becoming more common. No insect susceptible to these serovars has been discovered among known target species. The number of cross-reacting H-antigens among B. cereus strains is increasing and may be of biological significance. |
| Databáze: | OpenAIRE |
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