Hemipteran-and coleopteran active toxin proteins from
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.
1. A recombinant DNA comprising a promoter that functions in a plant cell, a polynucleotide which encodes an insect inhibitory protein, wherein said insect inhibitory protein comprises a polypeptide sequence that has at least 99% sequence identity to SEQ ID NO:5, and a 3′ non-translated region containing a polyadenylation signal, wherein said promoter, said polynucleotide, and said 3′ non-translated region are operably linked.
2. The recombinant DNA of claim 1 , wherein said polypeptide sequence has 100% identity to SEQ ID NO:5.
3. The recombinant DNA of claim 1 , wherein said insect inhibitory protein inhibits a Hemipteran insect, a Heteropteran insect, a Leptinotarsa sp. insect or a Homopteran insect.
4. The recombinant DNA of claim 3 , wherein said Hemipteran insect is Lygus.
5. The recombinant DNA of claim 3 , wherein said Homopteran insect is an aphid, a hopper, or a whitefly.
6. The recombinant DNA of claim 4 , wherein said insect inhibitory protein inhibits Lygus at a Lygus diet concentration of at least 5 ppm of said protein in said diet.
7. The recombinant DNA of claim 6 , wherein said insect inhibitory protein inhibits Lygus at a Lygus diet concentration of at least 50 ppm of said protein in said diet.
8. The recombinant DNA of claim 7 , wherein said insect inhibitory protein inhibits Lygus at a Lygus diet concentration of at least 250 ppm of said protein in said diet.
9. The recombinant DNA of claim 8 , wherein said insect inhibitory protein inhibits Lygus at a Lygus diet concentration of at least 500 ppm of said protein in said diet.
10. The recombinant DNA of claim 1 , wherein said polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO:4, SEQ ID NO:6 , SEQ ID NO:7, SEQ ID NO:44, SEQ ID NO: 45, SEQ ID NO:46, SEQ ID NO:47, SEQ ID NO:48, SEQ ID NO:49, SEQ ID NO:50, SEQ ID NO:51, SEQ ID NO:52, and SEQ ID NO:53.
11. The recombinant DNA of claim 1 , designed for expression in plants.
12. A transgenic plant or plant part derived therefrom comprising an insect inhibitory protein, wherein said insect inhibitory protein comprises a polypeptide sequence that has at least 99% sequence identity to SEQ ID NO:5.
13. A transformed host cell comprising a polynucleotide which encodes an insect inhibitory protein, wherein said insect inhibitory protein comprises a polypeptide sequence that has at least 99% sequence identity to SEQ ID NO:5.
14. The transformed host cell of claim 13 , wherein said host cell is a bacterial cell or a plant cell.
15. A plant derived from the transformed host cell of claim 14 , said plant comprising said polynucleotide.
16. A seed produced from the plant of claim 15 , said seed comprising said polynucleotide.
17. A progeny plant from the seed of claim 16 , said progeny plant comprising said polynucleotide.