Abstract
Invasion of Turing patterns into a region of bulk oscillations was investigated in the Belousov-Zhabotinsky-Aerosol OT reverse microemulsion system. Three distinct mechanisms for the formation of Turing structures at the expense of the bulk oscillation region were observed: frozen waves, which have been reported previously in this system, and reflecting waves and Turing-Hopf fronts, which have not. Turing-Hopf fronts appeared as the outer rings in this quasi-two-dimensional system with an amplitude intermediate between those of the Turing pattern and the phase waves in the bulk oscillation region. Three-dimensional (3D) Turing-Hopf shells (outer layers of 3D balls) were also observed.