Abstract: Provided is a culture method for a microorganism using a plate-like microchamber having a plurality of wells independent from each other on a front surface thereof. The culture method for the microorganism includes: mixing a liquid culture medium containing agarose having a gelation temperature of no less than 5° C. and no more than 20° C. and the microorganism to obtain a mixture; enclosing the mixture into the well with the front surface facing upward; and keeping the microchamber in which the mixture is enclosed in the well at a predetermined temperature range.

Abstract: An evaluation instrument is used in evaluating a compound produced by a cell. The evaluation instrument includes a holding space for holding a suspension containing the cell and a through hole that is formed at a bottom of the holding space. The through hole is closed with a substance that is impermeable to the cell and allows the compound to move therethrough.

Abstract: The present invention provides a polyester resin composition having improved physical properties and a molded body thereof.