摘要:
A novel Bacillus thuringiensis crystal protein exhibiting insect inhibitory activity is disclosed. Growth of Lygus insects is significantly inhibited by providing the novel crystal protein in Lygus insect diet. Polynucleotides encoding the crystal protein, transgenic plants and microorganisms that contain the polynucleotides, isolated peptides derived from the crystal protein, and antibodies directed against the crystal protein are also provided. Methods of using the crystal protein and polynucleotides encoding the crystal protein to control Hemipteran insects are also disclosed.
摘要:
The present invention relates to control of pest infestation by inhibiting one or more biological functions. The invention provides methods and compositions for such control, By feeding one or more recombinant double stranded RNA molecules provided by the invention to the pest, a reduction in pest infestation is obtained through suppression of gene expression. The invention is also directed to methods for making transgenic plants that express the double stranded RNA molecules, and to particular combinations of transgenic pesticidal agents for use in protecting plants from pest infestation.
摘要:
Disclosed are Bacillus thuringiensis strains comprising novel crystal proteins which exhibit insecticidal activity against lepidopteran insects. Also disclosed are novel B. thuringiensis genes and their encoded crystal proteins, as well as methods of making and using transgenic cells comprising the novel nucleic acid sequences of the invention.
摘要:
Disclosed are novel DNA probes useful in detecting a nucleic acid sequence encoding a novel Lepidopteran- and Coleopteran-active δ-endotoxin polypeptide. Also disclosed are nucleic acid detection methods and kits involving the novel DNA probes.
摘要:
Disclosed are novel synthetically-modified B. thuringiensis nucleic acid segments encoding .delta.-endotoxins having insecticidal activity against lepidopteran insects. Also disclosed are synthetic crystal proteins encoded by these novel nucleic acid sequences. Methods of making and using these genes and proteins are disclosed as well as methods for the recombinant expression, and transformation of suitable host cells. Transformed host cells and transgenic plants expressing the modified endotoxin are also aspects of the invention. Also disclosed are methods for modifying, altering, and mutagenizing specific loop regions between the .alpha. helices in domain 1 of these crystal proteins, including Cry1C, to produce genetically-engineered recombinant cry* genes, and the proteins they encode which have improved insecticidal activity. In preferred embodiments, novel Cry1C* amino acid segments and the modified cry1C* nucleic acid sequences which encode them are disclosed.
摘要:
A novel Bacillus thuringiensis crystal protein exhibiting insect inhibitory activity is disclosed. Growth of Lygus insects is significantly inhibited by providing the novel crystal protein in Lygus insect diet. Polynucleotides encoding the crystal protein, transgenic plants and microorganisms that contain the polynucleotides, isolated peptides derived from the crystal protein, and antibodies directed against the crystal protein are also provided. Methods of using the crystal protein and polynucleotides encoding the crystal protein to control Hemipteran insects are also disclosed.
摘要:
The present invention provides isolated polynucleotide sequences encoding ET37, TIC810 and TIC812 proteins from Bacillus thuringiensis, and nucleotide sequences for use in expressing TIC809, ET37, TIC810 and TIC812, and fusions of various insecticidally effective combinations of these proteins such as TIC 127, in plants. Methods of making and using the polynucleotide sequences and the proteins in the development of transgenic plant cells and transgenic plants exhibiting improved insect resistance against (1) Coleopteran insects including Western Corn Rootworm (Dibrotica virgifera), Southern Corn Rootworm (Dibrotica undecempunctata), Northern Corn Rootworm (Diabrotica barbed), Mexican Corn Rootworm (Diabrotica virgifera zeae), Brazilian Corn Rootworm (Diabrotica balteata) and Brazilian Corn Rootworm complex (Diabrotica viridula and Diabrotica speciosa), and against Hemipteran insects such as Lygus bugs, are disclosed.
摘要:
The present invention discloses Hemipteran insect inhibitory proteins, methods of using such proteins, nucleotide sequences encoding such proteins, methods of detecting and isolating such proteins, and their use in agricultural systems.
摘要:
Disclosed are novel insecticidal polypeptides, and compositions comprising these polypeptides, peptide fragments thereof, and antibodies specific therefor. Also disclosed are vectors, transformed host cells, and transgenic plants that contain nucleic acid segments that encode the disclosed δ-endotoxin polypeptides. Also disclosed are methods of identifying related polypeptides and polynucleotides, methods of making and using transgenic cells comprising these polynucleotide sequences, as well as methods for controlling an insect population, such as Colorado potato beetle, southern corn rootworm and western corn rootworm, and for conferring to a plant resistance to a target insect species.
摘要:
The present invention is directed to controlling pest infestation by inhibiting one or more biological functions in an invertebrate pest. The invention discloses methods and compositions for use in controlling pest infestation by feeding one or more different recombinant double stranded RNA molecules to the pest in order to achieve a reduction in pest infestation through suppression of gene expression. The invention is also directed to methods for making transgenic plants that express the double stranded RNA molecules, and to particular combinations of transgenic pesticidal agents for use in protecting plants from pest infestation.