Relation of pattern formation to external conditions in the flagellate, Chlamydomonas reinhardtii.

In Chlamydomonas reinhardtii, the entire process of pattern formation was described, and the relation of pattern formation to external conditions was investigated. The typical pattern was a dot-like structure that formed during a series of changes in cellular behavior, and reappeared immediately and repeatedly after perturbation by mild agitation. Of the external conditions, cell density, depth of the cell suspension, and the vessel's wall are discussed mainly. Especially the vessel's wall may decide the position and whole shape of the pattern formation.