The development of the sieve element (SE) of meta-phloem is the same as the company cell (CC) in pedicel central vascular bundles of rice.First, the vacuolation of cytoplasm increases in SE and CC.

• 摘要水稻小穗柄中央维管束后生韧皮部筛管分子和伴胞的发育都经历了一个基本相同的过程，首先是细胞液泡化程度增加；