Abstract
At various environmental conditions, its signal was accepted by plant cells at first and transduced to the whole plant. His-Asp phosphorelay signaling system was known as one of the outstanding means to recognize stress signals and it has been also reported that one of two kinds of plant RR(For abbreviation, see above summary) called typeB RR had transcriptional activity with B-motif revealed from the 3-D structure analysis, DNA-binding and transcriptional activity analysis etc. But some different functions of these in each plants species, monocot and dicot, has been reported recently. So we tried to see the intracellular characteristics of RR and HPt signaling factors of this system from the point of cellular view, the cellular localization or interaction of these and what kinds of environmental stress signal was recognized using the GFP-RR/-HPt fusion protein with rice culture cells. From these results wed like to discuss about this system of rice.
