Lipochito-oligosaccharides stimulating arbuscular mycorrhizal symbiosis
US-9241454-B2 · Jan 26, 2016 · US
Lipochito-oligosaccharides stimulating arbuscular mycorrhizal symbiosis
US11008356B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11008356-B2 |
| Application number | US-201615005707-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 25, 2016 |
| Priority date | Oct 29, 2008 |
| Publication date | May 18, 2021 |
| Grant date | May 18, 2021 |
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- Title
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Abstract
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The invention relates to lipochitooligosaccharides obtainable from arbuscular mycorrhizal fungi, and which are useful for stimulating arbuscular mycorrhizal symbiosis, and lateral root formation.
First claim
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We claim: 1. A method for stimulating mycorrhization of a plant which comprises contacting the plant, a part, a seedling or a seed thereof with a mixture of lipochitooligosaccharides consisting of a lipochitooligosaccharide defined by the formula (I): wherein n=2, R 1 is a saturated or monounsaturated fatty acid chain containing 16 or 18 carbon atoms and R 2 is H; and a lipochitooligosaccharide defined by the formula (I), wherein n=3, R 1 is a saturated or monounsaturated fatty acid chain containing 16 or 18 carbon atoms and R 2 is H. 2. The method of claim 1 , wherein said mixture of lipochitooligosaccharides consists of a lipochitooligosaccharide defined by the formula (I), wherein n is 2, R 1 is a saturated or monounsaturated fatty acid chain containing 16 carbon atoms and R 2 is H; and a lipochitooligosaccharide defined by the formula (I), wherein n is 3, R 1 is a saturated or monounsaturated fatty acid chain containing 16 carbon atoms, and R 2 is H. 3. The method of claim 1 , wherein said mixture of lipochitooligosaccharides consists of a lipochitooligosaccharide defined by the formula (I), wherein n is 2, R 1 is a saturated or monounsaturated fatty acid chain containing 18 carbon atoms and R 2 is H; and a lipochitooligosaccharide defined by the formula (I), wherein n is 3, R 1 is a saturated or monounsaturated fatty acid chain containing 18 carbon atoms, and R 2 is H. 4. The method of claim 1 , wherein said mixture of lipochitooligosaccharides is used at a concentration of 10 −5 to 10 −12 M. 5. A method for stimulating lateral root formation of a non-legume plant which comprises contacting said plant, a part, a seedling or a seed thereof with a mixture of lipochitooligosaccharides consisting of a lipochitooligosaccharide defined by the formula (I): wherein n=2, R 1 is a saturated or monounsaturated fatty acid chain containing 16 or 18 carbon atoms and R 2 is H; and a lipochitooligosaccharide defined by the formula (I), wherein n=3, R 1 is a saturated or monounsaturated fatty acid chain containing 16 or 18 carbon atoms and R 2 is H. 6. The method of claim 5 , wherein said mixture of lipochitooligosaccharides consists of a lipochitooligosaccharide defined by the formula (I), wherein n is 2, R 1 is a saturated or monounsaturated fatty acid chain containing 16 carbon atoms and R 2 is H; and a lipochitooligosaccharide defined by the formula (I), wherein n is 3, R 1 is a saturated or monounsaturated fatty acid chain containing 16 carbon atoms and R 2 is H. 7. The method of claim 5 , wherein said mixture of lipochitooligosaccharides consists of a lipochitooligosaccharide defined by the formula (I), wherein n is 2, R 1 is a saturated or monounsaturated fatty acid chain containing 18 carbon atoms and R 2 is H SO 3 H, and a lipochitooligosaccharide defined by the formula (I), wherein n is 3, R 1 is a saturated or monounsaturated fatty acid chain containing 18 carbon atoms, and R 2 is H. 8. The method of claim 5 , wherein said mixture of lipochitooligosaccharides is used at a concentration of 10 −5 to 10 −12 M.
Assignees
Inventors
Classifications
Hormone-influenced development · CPC title
Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof · CPC title
Microbial fungi; Substances produced thereby or obtained therefrom · CPC title
with oxygen as the ring hetero atom · CPC title
Fatty acids · CPC title
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Frequently asked questions
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- What does patent US11008356B2 cover?
- The invention relates to lipochitooligosaccharides obtainable from arbuscular mycorrhizal fungi, and which are useful for stimulating arbuscular mycorrhizal symbiosis, and lateral root formation.
- Who is the assignee on this patent?
- Agronomique Inst Nat Rech, Centre Nat Rech Scient, Univ Toulouse, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C07H5/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 18 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).