AXMI221z, AXMI222z, AXMI223z, AXMI224z and AXMI225z delta-endotoxin genes and methods for their use
View Patent ↗Compositions and methods for conferring lepidoptericidal activity to bacteria, plants, plant cells, tissues and seeds are provided. Compositions comprising a coding sequence for the Axmi222z toxin polypeptide are provided. The Axmi 222z coding sequences can be used in DNA constructs or expression cassettes for transformation and expression in plants and bacteria. Compositions also comprise transformed bacteria, plants, plant cells, tissues, and seeds. In particular, isolated Axmi222z toxin nucleic acid molecules are provided. Additionally, amino acid sequences corresponding to the Axmi222z polynucleotides are encompassed, and antibodies specifically binding to those amino acid sequences. In particular, the present invention provides for isolated nucleic acid molecules comprising nucleotide sequences encoding the amino acid sequence shown in SEQ ID NO:24-26, or the nucleotide sequence set forth in SEQ ID NO:2, 7, 12, and 17, as well as variants and fragments thereof.
1. A construct comprising a nucleotide sequence operably linked to a heterologous promoter and encoding an amino acid sequence having pesticidal activity against lepidopteran pests, wherein said nucleotide sequence is selected from the group consisting of:
a) the nucleotide sequence set forth in any of SEQ ID NO:2, 7, 12, and 17;
b) a nucleotide sequence that encodes a polypeptide comprising the amino acid sequence of SEQ ID NO:24, 25, or 26; and
c) a nucleotide sequence that encodes a polypeptide comprising an amino acid sequence having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:24, 25, or 26.
2. The construct of claim 1 , wherein said nucleotide sequence is a synthetic sequence that has been designed for expression in a plant.
3. The construct of claim 1 , wherein said promoter is capable of directing expression of said nucleotide sequence in a plant cell.
4. A vector comprising the construct of claim 1 .
5. The vector of claim 4 , further comprising a nucleic acid molecule encoding a heterologous polypeptide.
6. A host cell that contains the vector of claim 4 .
7. The host cell of claim 6 that is a bacterial host cell.
8. The host cell of claim 6 that is a plant cell.
9. A transgenic plant comprising the host cell of claim 8 .
10. The transgenic plant of claim 9 , wherein said plant is selected from the group consisting of maize, sorghum, wheat, cabbage, sunflower, tomato, crucifers, peppers, potato, cotton, rice, soybean, sugarbeet, sugarcane, tobacco, barley, and oilseed rape.
11. A transgenic seed comprising the construct of claim 1 .
12. A recombinant polypeptide with pesticidal activity, selected from the group consisting of:
a) a polypeptide comprising the amino acid sequence encoded by the nucleotide sequence set forth in SEQ ID NO: 2, 7, 12, or 17; and
b) a polypeptide comprising an amino acid sequence having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:24, 25, or 26,
wherein said recombinant polypeptide further comprises a chloroplast transit peptide.
13. A composition comprising the polypeptide of claim 12 .
14. The composition of claim 13 , wherein said composition is selected from the group consisting of a powder, dust, pellet, granule, spray, emulsion, colloid, and solution.
15. The composition of claim 13 , wherein said composition is prepared by desiccation, lyophilization, homogenization, extraction, filtration, centrifugation, sedimentation, or concentration of a culture of bacterial cells.
16. The composition of claim 13 , comprising from1% to 99% by weight of said polypeptide.
17. A method for controlling a lepidopteran pest population comprising contacting said population with a pesticidally-effective amount of a polypeptide of claim 12 .
18. A method for killing a lepidopteran, pest, comprising contacting said pest with, or feeding to said pest, a pesticidally-effective amount of a polypeptide of claim 12 .
19. A method for producing a polypeptide with pesticidal activity, comprising culturing the host cell of claim 6 under conditions in which the nucleic acid molecule encoding the polypeptide is expressed.
20. A plant having stably incorporated into its genome a DNA construct comprising a nucleotide sequence that encodes a protein having pesticidal against lepidopteran pests, wherein said nucleotide sequence is selected from the group consisting of:
a) the nucleotide sequence set forth in SEQ ID NO:2, 7, 12, and 17;
b) a nucleotide sequence that encodes a polypeptide comprising the amino acid sequence of any of SEQ ID NO:24, 25, or 26; and
c) a nucleotide sequence that encodes a polypeptide comprising an amino acid sequence having at least 95% sequence identity to the amino acid sequence of any of SEQ ID NO:24, 25, or 26.
21. A method for protecting a plant from a pest, comprising expressing in a plant or cell thereof a nucleotide sequence that encodes a polypeptide having pesticidal activity against a lepidopteran pest, wherein said nucleotide sequence is selected from the group consisting of:
a) the nucleotide sequence set forth in SEQ ID NO:2, 7, 12, and 17;
b) a nucleotide sequence that encodes a polypeptide comprising the amino acid sequence of SEQ ID NO:24, 25, or 26; and
c) a nucleotide sequence that encodes a polypeptide comprising an amino acid sequence having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:24, 25, or 26.
22. The method of claim 21 , wherein said plant produces a pesticidal polypeptide having pesticidal activity against a lepidopteran, hemipteran, coleopteran, nematode, or dipteran pest.
23. A method for increasing yield in a plant comprising growing in a field a plant of or a seed thereof having stably incorporated into its genome a DNA construct comprising a nucleotide sequence that encodes a protein having pesticidal against lepidopteran pests, wherein said nucleotide sequence is selected from the group consisting of:
a) the nucleotide sequence set forth in SEQ ID NO:2, 7, 12, and 17;
b) a nucleotide sequence that encodes a polypeptide comprising the amino acid sequence of SEQ ID NO:24, 25, or 26; and
c) a nucleotide sequence that encodes a polypeptide comprising an amino acid sequence having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:24, 25, or 26;
wherein said field is infested with a pest against which said polypeptide has pesticidal activity and wherein said yield is increased relative to the yield of a plant not comprising said nucleotide sequence.