Department of Plant Cytology and Embryology, University of Gdańsk, Kładki 24 St., Gdańsk, Poland.
Protoplasma. 2010 Nov;247(1-2):117-20. doi: 10.1007/s00709-010-0133-9. Epub 2010 Mar 23.
Plasmodesmata ensure the continuity of cytoplasm between plant cells and play an important part in the intercellular communication and signal transduction. During the development of the suspensor of both Sedum acre L. and Sedum hispanicum L., changes in the ultrastructure of plasmodesmata and adjoining cytoplasm are observed. Numerous simple plasmodesmata are present in the inner wall of the two-celled embryo separating the basal cell from the apical cell. From the early-globular to the torpedo stage of embryo development, the part of the wall separating the basal cell from the first layer of the chalazal suspensor cells is perforated by unusual, compound plasmodesmata. The role and the sort of transport through these plasmodesmata are discussed.
胞间连丝确保了植物细胞之间细胞质的连续性，并在细胞间通讯和信号转导中起着重要作用。在景天属（Sedum acre L.）和西班牙景天（Sedum hispanicum L.）的悬浮胚的发育过程中，观察到胞间连丝和相邻细胞质的超微结构发生变化。在将基细胞与顶细胞分开的两个细胞胚胎的内壁上存在许多简单的胞间连丝。从早期球形到胚胎发育的鱼雷阶段，将基细胞与第一列珠柄悬浮胚细胞分开的细胞壁部分被不寻常的复合胞间连丝穿孔。讨论了这些胞间连丝的作用和运输类型。
