COMPOSITION COMPRISING NUCLEIC ACIDS OF PARASITIC, PATHOGENIC OR INFESTING BIOLOGICAL SYSTEMS FOR INHIBITING AND/OR CONTROLLING THE GROWTH OF SAID SYSTEMS AND PROCESS FOR THE PREPARATION THEREOF

摘要

The present invention concerns a DNA fragment mixture for the prevention or for the treatment against at least one pathogenic, parasitic or weed species of the plants or the environment, wherein said total DNA consist of random fragments of the total DNA of said at least one pathogenic, parasitic or weed species, and/or at least one phylogenetically similar species, against which said prevention and treatment are directed. Further, the invention concerns a process and relative system allowing the improvement of the production/growth of microorganisms at high yield in bioreactors or photobioreactors, or of plants in different culture systems, characterized in that the nucleic acids of the same organisms produced by said process are removed from culture medium and said culture medium, deprived of said nucleic acid, is used again in said process.