Agricultural uses of a novel bacterium of the genus Streptomyces

Patent metadata

Field	Value
Publication number	US-9955701-B2
Application number	US-201415023928-A
Country	US
Kind code	B2
Filing date	Sep 24, 2014
Priority date	Sep 24, 2013
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A method for processing plant matter, which involves applying a processing composition including at least one biological agent selected from: bacteria including a DNA sequence, referred to as 16S rDNA, coding for the 16S ribosomal RNA of the bacterium, which is 100% homologous with SEQ ID NO. 1, culture media in which bacteria have grown which include the 16S rDNA sequence that is 100% homologous with SEQ ID NO. 1 and which are substantially free of the bacteria, the culture media including polynucleotides having a DNA sequence which is 100% homologous with SEQ ID NO. 1, and in which the bacteria are selected from bacteria that are consistent with the strain filed and registered on 7 Apr. 2011 with number 1-4467 before the French National Collection of Microorganism Cultures (CNCM) of the Pasteur Institute, and mutant bacteria of the filed strain.

First claim

The invention claimed is:

1. A method for treating plant material, comprising applying to the plant material a composition comprising at least one biological agent selected from:
bacteria of the genus Streptomyces comprising a 16S rDNA, which codes for the 16S ribosomal RNA of said bacteria and is 100% homologous with SEQ ID NO: 1; and
culture media in which bacteria comprising the 16S rDNA sequence that is 100% homologous with SEQ ID NO: 1 have developed and which are free of said bacteria, said culture media comprising polynucleotides having a DNA sequence that is 100% homologous with SEQ ID NO: 1,
and wherein the bacteria are selected from the group consisting of:
bacteria corresponding to the strain deposited and registered on 7 Apr. 2011 under number 1-4467 with the National Collection of Microorganisms Cultures (CNCM) of the Pasteur Institute; and
mutant bacteria of the deposited strain, obtained by mutagenesis of bacteria of the strain deposited and registered on 7 Apr. 2011 under number 1-4467 with the National Collection of Microorganisms Cultures (CNCM) of the Pasteur Institute, said mutant comprising the 16S rDNA sequence that is 100% homologous with SEQ ID NO: 1, said mutant bacteria being capable of inhibiting the growth of phytopathogenic target microorganisms.

2. The method according to claim 1 , wherein the plant material is selected from the group consisting of all or part of a plant in cultivation, of a fruit or vegetable after harvesting, and of seeds and propagating material of plants.

3. The method according to claim 1 , wherein a treatment composition further comprising a solid nutriment in the divided state is used.

4. The method according to claim 1 , wherein said treatment composition is applied to said plant material in order to activate the growth thereof.

5. The method according to claim 1 , wherein said treatment composition is applied to said plant material in order to inhibit the growth of at least one target microorganism.

6. The method according to claim 1 , wherein said treatment composition is applied to said plant material in order to stimulate the natural defenses of said plant material.

7. The method according to claim 1 , wherein the composition is liquid.

8. The method according to claim 1 , wherein the composition is solid.

9. The method according to claim 1 , wherein the composition comprises at least one acceptable excipient for permitting its application to plant material to be treated.

10. The method according to claim 1 , for treating agricultural plant crops, comprising applying to plants or seeds of said agricultural plant crops an effective amount of the composition.

11. The method according to claim 1 , wherein the composition is applied to plants for stimulating the growth of plants.

12. The method according to claim 1 , wherein the composition is applied to seeds for stimulating the germination of seeds.

13. The method according to claim 1 , wherein the composition is applied to plants for a fertilization treatment of plants.

14. The method according to claim 1 , wherein the composition is applied to plants for an antimicrobial and/or antiviral treatment of plants.

15. The method according to claim 1 , wherein the composition is applied to plants for stimulating the natural defenses of plants.

16. The method according to claim 1 , wherein the bacteria are the strain deposited and registered on 7 Apr. 2011 under number 1-4467 with the National Collection of Microorganisms Cultures (CNCM) of the Pasteur Institute.

Assignees

• Agronutrition
• Centre Nat Rech Scient
• Univ Toulouse 3 Paul Sabatier

Inventors

• Errakhi Rafik
• Attia Faouzi
• Cabanes Cedric
• Dumas Bernard
• Vergnes Sophie

Classifications

• C05F11/08 Primary

  Organic fertilisers containing added bacterial cultures, mycelia or the like · CPC title

• A01N63/00 Primary

  Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates (containing compounds of determined constitution A01N27/00 - A01N59/00; unicellular algae A01N65/03) · CPC title

• A01N63/02

  Human Necessities · mapped topic

• C12R1/465

  Chemistry & Metallurgy · mapped topic

• C12R2001/465

  Streptomyces · CPC title