| 摘要 |
An object of the present invention is to provide a microorganism which is novel at the elemental composition level, and to provide a technique for providing such a microorganism. The present inventor has succeeded in causing a microorganism to efficiently contain a non-essential element by decreasing the content of an essential nutrient source for the microorganism, a C source, an N source, a P source, or an S source, and by adding an X compound containing the non-essential element as a constitutive element in a manner to make up for the decreased amount, and then culturing the microorganism.
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