Biomaterial Database

[Specificity and active principle of Bacillus thuringiensis var. israelensis]. 1981

I Larget, and H de Barjac

Bio-assays of B. thuringiensis var. israelensis on larvae of Drosophila melanogaster, Musca domestica, Culicoides sp. and Chironomus plumosus are negative except in the last case, but only with doses much higher than those which are lethal for mosquito larvae. Tests on mollusks (Biomphalaria glabrata) and golden fishes are also negative. The specificity of action of the H 14 serotype, limited to a few Diptera families, should be mainly related to the special characteristics of its crystals, which are proved to be the only active material by studying the larvicidal power of isolated crystals and of spore-free or crystal-free mutants. The amino-acid composition is one of these characteristics, being similar qualitatively but different quantitatively, when compared with the composition of the other studied H serotypes.

UI	MeSH Term	Description	Entries
D007814	Larva	Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.	Maggots,Tadpoles,Larvae,Maggot,Tadpole
D004175	Diptera	An order of the class Insecta. Wings, when present, number two and distinguish Diptera from other so-called flies, while the halteres, or reduced hindwings, separate Diptera from other insects with one pair of wings. The order includes the families Calliphoridae, Oestridae, Phoridae, SARCOPHAGIDAE, Scatophagidae, Sciaridae, SIMULIIDAE, Tabanidae, Therevidae, Trypetidae, CERATOPOGONIDAE; CHIRONOMIDAE; CULICIDAE; DROSOPHILIDAE; GLOSSINIDAE; MUSCIDAE; TEPHRITIDAE; and PSYCHODIDAE. The larval form of Diptera species are called maggots (see LARVA).	Flies, True,Flies,Dipteras,Fly,Fly, True,True Flies,True Fly
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001413	Bacillus thuringiensis	A species of gram-positive bacteria which may be pathogenic for certain insects. It is used for the biological control of the Gypsy moth.	Bacilan,Dipel,Thuricide
D012703	Serotyping	Process of determining and distinguishing species of bacteria or viruses based on antigens they share.	Serotypings
D013045	Species Specificity	The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.	Species Specificities,Specificities, Species,Specificity, Species