Agricultural uses of a novel bacterium of the genus Streptomyces

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.