Insecticidal proteins and methods for their use
Compositions and methods for controlling pests are provided. The methods involve transforming organisms with a nucleic acid sequence encoding an insecticidal protein. In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The pesticidal proteins find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.
1. A DNA construct comprising a polynucleotide operably linked to a heterologous regulatory element, wherein the polynucleotide encodes a polypeptide having at least 95% sequence identity to the amino acid sequence of SEQ ID NO: 3 or SEQ ID NO: 4, wherein the polypeptide has insecticidal activity.
2. The recombinant polynucleotide of claim 1 , wherein the polynucleotide has codons optimized for expression in an agriculturally important crop.
3. A host cell transformed with the DNA construct of claim 1 .
4. The host cell of claim 3 , wherein the host cell is a bacterial cell or a plant cell.
5. The host cell of claim 4 , wherein the plant cell is a monocot or a dicot.
6. A transgenic plant comprising the polynucleotide of claim 1 .
7. A transgenic plant comprising the DNA construct of claim 1 .
8. A method of inhibiting growth or killing an insect pest or pest population, comprising contacting the insect pest with the DNA construct of claim 1 .
9. A method of inhibiting growth or killing an insect pest or pest population comprising expressing in a plant the polynucleotide of claim 1 .
10. The method of claim 8 , wherein the insect pest or pest population is resistant to at least one Cry insecticidal protein.