1.We focused on several key events during fertilization from membrane fusion to karyogamy of sperm cells and egg cells.

1.探了从精细胞和卵细胞质膜融合到它们的核融合完成这发育阶段的某些主要事件。

2.Plasmogamy in the absence of karyogamy (fusion of nuclei) occurs between fungal mycelia of different strains of some ascomycetes and basidiomycetes to form a heterokaryon.

2.未核配（核融合）的质配发生在系的子囊菌和担子菌菌丝体之间以形成异核体。