Abstract
Post-Golgi organelles, such as the trans Golgi network, endosomes, and vacuoles are mutually connected by a vesicular transport system. This inter-organelle traffic seems to be strictly regulated temporally and spatially, and disordered post-Golgi traffic affects the various cell function. Recent molecular genetic study also revealed that the post-Golgi network participates in the various plant function of higher order, such as response to the environment, morphogenesis, and transport and perception of the phytohormone. We are studying the dynamics and function of the post-Golgi network especially focusing on the endosomes. Combination of the high-speed and high-sensitivity imaging system, genetic analysis, and biochemical study enabled us to unveil the dynamic and essential functions of post-Golgi organelles.
