Department of Botany, Plant Science Laboratories, University of Reading, Whiteknights, RG6 2AS, Reading, UK.
Planta. 1984 Jan;161(1):86-90. doi: 10.1007/BF00951464.
The angiosperm male meiocyte is unusual among plant cells in that during early development ordered cellulosic microfibrils are not deposited at the protoplast surface. Instead, a complex series of events takes place which leads to the formation of the pollen wall 'primexine'. The use of immuno-cytochemistry, electron microscopy and experiments with an inhibitor have revealed this cell to contain no cortical microtubules, and its cytoskeleton to be radially organised with microtubules extending from the nucleus to the plasma membrane. It is proposed that these microtubules, perhaps organised from the nuclear envelope, play a part in orientation of the nucleus and in the transport of materials to the cell surface.
被子植物雄性生殖细胞在早期发育过程中与植物细胞的不同之处在于，有序的纤维素微纤维不会沉积在原生质体表面。相反，会发生一系列复杂的事件，导致花粉壁“原外壁”的形成。免疫细胞化学、电子显微镜和抑制剂实验的应用表明，这种细胞不含皮质微管，其细胞骨架呈放射状排列，微管从核延伸到质膜。据推测，这些微管可能是从核膜组织的，在核的定向和物质向细胞表面的运输中起作用。
