On the other hand, microorganisms are so diverse that it is difficult to control the entire "microbial flora" (collection of microorganisms).Therefore, the research team of Kyoto University and others has selected "core symbiotic microorganisms" that greatly influence the dynamics of the microbial flora and inoculated them into the seeds and seedlings of plants in advance to maximize the function of the microbial flora. Proposed a strategy.

　Traditionally, the search for useful microorganisms in agriculture has been based on a single species.However, in actual agricultural land, the growth and survival of plants are influenced by the complex interaction of innumerable fungi.Therefore, in this study, we have a bird's-eye view of the entire microbial flora, and the species that greatly influence its dynamics are named "core symbiotic microorganisms."Among them, it was proposed to inoculate the plants in advance with the leaders who organize the species that support the healthy growth of the host plants.

　In the world of plant symbiotic microorganisms, the symbiotic bacteria that entered the plant body first can select or eliminate the bacteria that try to invade later (indigenous effect).This is a mechanism that attracts only favorable microorganisms and forms the basis of a sustainable agroecosystem.It is expected to lead to lower risk and more efficient agricultural production and ecosystem regeneration.

　In this research, we have devised a prototype of an evaluation method for finding candidates for core symbiotic microorganisms, and plan to continue developing interdisciplinary methods for searching for appropriate core symbiotic microorganisms.

Paper information:[Nature Plants] Core microbiomes for sustainable agroecosystems