摘要:
The subject invention concerns new classes of pesticidally active proteins and the polynucleotide sequences which encode these proteins. More specifically, in preferred embodiments, pesticidal proteins of approximately 40-50 kDa and of approximately 10-15 kDa are used for controlling corn rootworms. Also described are novel pesticidal isolates of Bacillus thuringiensis.
摘要:
The subject invention pertains to novel insecticidal toxins and genes which encode these toxins. Also disclosed are novel nucleotide primers for the identification of genes encoding toxins active against pests. The primers are usefull in PCR techniques to produce gene fragments which are characteristic of genes encoding these toxins.
摘要:
An improved Bacillus thuringiensis (B.t.) delta-endotoxin is created by the modification of the gene encoding the toxin. The toxicity of a B.t. toxin was improved by replacing the native protoxin segment with an alternate protoxin segment by constructing a chimeric toxin gene.
摘要:
Disclosed and claimed are novel Bacillus thuringiensis isolates, pesticidal toxins, genes, and nucleotide probes and primers for the identification of genes encoding toxins active against pests. The primers are useful in PCR techniques to produce gene fragments which are characteristic of genes encoding these toxins. The subject invention provides entirely new families of toxins from Bacillus isolates.
摘要:
The specification discloses a nucleic acid from Bacillus thuringiensis strain KB59A4-6 that encodes a novel pesticidal SUP toxin and plants and microbial cells transformed with the nucleic acid.
摘要:
Disclosed and claimed are novel Bacillus thuringiensis isolates, pesticidal toxins, genes, and nucleotide probes and primers for the identification of genes encoding toxins active against pests. The primers are useful in PCR techniques to produce gene fragments which are characteristic of genes encoding these toxins. The subject invention provides entirely new families of toxins from Bacillus isolates.
摘要:
The subject invention concerns new classes of pesticidal toxins and the polynucleotide sequences which encode these toxins. Also described are novel pesticidal isolates of Bacillus thuringiensis.
摘要:
The subject invention concerns materials and methods for the control of non-mammalian pests. In specific embodiments, the subject invention concerns materials and methods useful in the control of insects from the Order Homoptera. More specifically, the subject invention provides novel Bacillus thuringinesis (B.t.) isolates, or strains, toxins, and toxin-encoding genes that are useful for the control of homopterans. The strains HD969, PS66D3, and PS50C are specifically exemplified herein as yielding mortality against homopterans. In a preferred embodiment, the target pests are selected from the group consisting of leafhoppers and planthoppers.
摘要:
Expression of the crystal protein of Bacillus thuringiensis in Escherichia coli is described by use of plasmids containing heterologous DNA coding for the crystal protein. Genetically engineered bacterial host strains transformed by the plasmids of the invention express Bacillus thuringiensis crystal proteins without exhibiting the growth phase limitations characteristic of the natural bacterial host species.
摘要:
Expression of the crystal protein of Bacillus thuringiensis in E. coli is described by use of plasmids containing heterologous DNA coding for the crystal protein. Genetically engineered bacterial host strains transformed by the recombinant plasmids of the invention express B. thuringiensis crystal proteins.