Methods of use of seed-origin endophyte populations
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01N-063/02
A01N-063/00
A01C-001/06
A01C-001/00
출원번호
US-0017531
(2016-02-05)
등록번호
US-9532573
(2017-01-03)
발명자
/ 주소
von Maltzahn, Geoffrey
Sadowski, Craig
Flavell, Richard Bailey
Toledo, Gerardo V.
Djonovic, Slavica
Marquez, Luis Miguel
Johnston, David Morris
Millet, Yves Alain
Lyford, Jeffrey
Naydich, Alexander
출원인 / 주소
Indigo Ag, Inc.
대리인 / 주소
Fenwick & West LLP
인용정보
피인용 횟수 :
10인용 특허 :
34
초록▼
This application relates to methods and materials for providing a benefit to a seed or seedling of an agricultural plant (e.g., an agricultural grass plant), or the agricultural plant derived from the seed or seedling. For example, this application provides purified bacterial populations that includ
This application relates to methods and materials for providing a benefit to a seed or seedling of an agricultural plant (e.g., an agricultural grass plant), or the agricultural plant derived from the seed or seedling. For example, this application provides purified bacterial populations that include novel seed-origin bacterial endophytes, and synthetic combinations of seeds and/or seedlings (e.g., cereal seeds and/or seedlings) with heterologous seed-derived bacterial endophytes.
대표청구항▼
1. A method of treating seeds of a cereal agricultural plant, comprising mechanically or manually contacting a plurality of seeds with a composition comprising a purified bacterial population that comprises a seed bacterial endophyte that is capable of producing an auxin or acetoin, and has a 16S nu
1. A method of treating seeds of a cereal agricultural plant, comprising mechanically or manually contacting a plurality of seeds with a composition comprising a purified bacterial population that comprises a seed bacterial endophyte that is capable of producing an auxin or acetoin, and has a 16S nucleic acid sequence that is at least 97% identical to a 16S nucleic acid sequence selected from the group consisting of SEQ ID NO: 521, 533, 560, 710, 856, 1447, 530, 536, 588, and 658, and the endophyte is heterologously disposed to the seed in an amount effective to colonize the plant and to increase germination efficiency of the treated seed as compared to a reference seed sowed under the same conditions. 2. The method of claim 1, wherein the bacterial endophyte is obtainable from an interior seed compartment. 3. The method of claim 1, wherein the bacterial endophyte is obtainable from an exterior surface of a seed. 4. The method of claim 1, wherein the bacterial endophyte is obtainable from a different cultivar, variety or crop as compared to the seed. 5. The method of claim 1, wherein the bacterial endophyte colonizes the roots of a seedling germinated from the treated seed. 6. The method of claim 1, wherein the composition further comprises a purified fungal population. 7. The method of claim 1, wherein the bacterial population includes two or more bacterial endophytes. 8. The method of claim 1, wherein the bacterial endophyte is obtained from rice seed, maize seed, wheat seed, or barley seed. 9. The method of claim 1, wherein the increased germination efficiency occurs under conditions of abiotic stress. 10. The method of claim 9, wherein the abiotic stress is selected from the group consisting of water stress, salt stress, heat stress, cold stress, high metal content stress and low nutrient stress. 11. A method of treating seeds of a cereal agricultural plant, comprising mechanically or manually contacting a plurality of seeds with a composition comprising a purified bacterial population that comprises a first bacterial endophyte and a second bacterial endophyte, wherein the first bacterial endophyte and second bacterial endophyte have a 16S nucleic acid sequence that is at least 97% identical to a 16S nucleic acid sequence selected from the group consisting of SEQ ID NO: 521, 533, 560, 588, 658 and 856, and is capable of producing an auxin or acetoin, wherein the first bacterial endophyte and second bacterial endophyte have different 16S nucleic acid sequence, wherein the first and second endophytes are heterologously disposed to the seed in an amount effective to colonize the plant and to increase germination efficiency of the treated seed as compared to a reference seed sowed under the same conditions. 12. The method of claim 11, wherein the bacterial endophyte is obtainable from an interior seed compartment. 13. The method of claim 11, wherein the bacterial endophyte is obtainable from an exterior surface of a seed. 14. The method of claim 11, wherein the bacterial endophyte is obtainable from a different cultivar, variety or crop as compared to the seed. 15. The method of claim 11, wherein the bacterial endophyte colonizes the roots of a seedling germinated from the treated seed. 16. The method of claim 11, wherein the composition further comprises a purified fungal population. 17. The method of claim 11, wherein the bacterial population comprises more than two bacterial endophytes. 18. The method of claim 11, wherein the bacterial endophyte is obtained from rice seed, maize seed, wheat seed, or barley seed. 19. The method of claim 11, wherein the increased germination efficiency occurs under conditions of abiotic stress. 20. The method of claim 19, wherein the abiotic stress is selected from the group consisting of water stress, salt stress, heat stress, cold stress, high metal content stress and low nutrient stress. 21. The method of claim 1, wherein the effective amount is at least 10^3 CFU of endophyte per seed surface. 22. The method of claim 11, wherein the effective amount is at least 10^3 CFU of each endophyte per seed surface. 23. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 521. 24. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 521. 25. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 533. 26. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 533. 27. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 560. 28. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 560. 29. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 710. 30. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 710. 31. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 856. 32. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 856. 33. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 1447. 34. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 1447. 35. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 530. 36. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 530. 37. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 536. 38. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 536. 39. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 588. 40. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 588. 41. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 97% identical to SEQ ID NO: 658. 42. The method of claim 1, wherein the seed bacterial endophyte has a 16S nucleic acid sequence that is 100% identical to SEQ ID NO: 658. 43. The method of claim 10, wherein the abiotic stress is water stress. 44. The method of claim 11, wherein the first bacterial endophyte 16S nucleic acid sequence is 100% identical to a 16S nucleic acid sequence selected from the group consisting of SEQ ID NO: 521, 533, 560, 588, 658 and 856. 45. The method of claim 11, wherein the second bacterial endophyte 16S nucleic acid sequence is 100% identical to a 16S nucleic acid sequence selected from the group consisting of SEQ ID NO: 521, 533, 560, 588, 658 and 856. 46. The method of claim 20, wherein the abiotic stress is water stress.
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