Abstract
There is less molecular information about vascular formation in monocotyledonous plants, compared with that in dicotyledonous plants. The development of the leaf in the monocotyledon progresses almost in one dimension, because cell division occurs at the base of leaves. Therefore, it is easy to follow the process of vascular development in the leaf. In order to elucidate the vascular formation system in the monocotyledon, the research was carried out by using the rice plant as a model.
We investigated the pattern formation and internal structure of the vascular tissue with the cleared leaf blades and the continuous sections in the basement of the rice plant. Based on this information, we screened mutants defective in vascular formation. As the result, we succeeded in identifying 11 lines of vein pattern mutants and a line of vascular structural mutant. From these results, we will discuss the mechanism of vascular formation in rice leaves.
