关键词: 水稻;叶脉;微管组织;形态结构

Abstract:

Apart from transportation of nutrients and water, veins on leaves directly provide a mechanical support for blades in maintaining proper morphological architecture, thus exert normal physiological function. The width of leaf is positively correlative to the number of leaf vein in rice. Furthermore, the leaf width, length and erect index determine the plant photosynthetic efficiency. As a consequence, it is very significant to uncover the functional mechanism of vascular tissue in rice growth and development. This review mainly focuses on current findings about cytological and molecular mechanism of vascular development in rice, which expected to provide reference for researchers.

Key words: rice, leaf vein, vascular tissue, morphological structure