CIL:573, Acetabularia mediterranea, gamete. In Cell Image Library

At cyst formation in the 'giant' unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds of mitosis prior to gamete formation. Initially the nuclei form a syncytium which separates into individual gametes. This section shows a stage in gametogenesis where the syncytium is being divided into uninuclear gametes, and the formation of flagella from paired centrioles is in progress. See Woodcock and Miller, 1973. Ultrastructural features of the life cycle of Acetabularia I Gametogenesis. Proptoplasma 77, 313-319.

在“大型”单细胞绿藻伞藻（Acetabularia）的孢囊形成阶段，每个孢囊均包含单个细胞核，该细胞核随后会在配子形成前经历多轮有丝分裂。最初，这些细胞核会形成合胞体（syncytium），随后合胞体解离为单个配子。本切片展示了配子发生过程中的一个阶段：合胞体正在被分割为单核配子，且由成对中心粒（centrioles）衍生的鞭毛正处于形成过程中。详见Woodcock与Miller，1973年发表的《伞藻生活史的超微结构特征I：配子发生》，载于《原生质体（Protoplasma）》第77卷，第313-319页。