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本文研究了茶树卵器的结构和受精过程。茶树的卵器由1个卵细胞和2个助细胞组成。有些卵器的助细胞之一在花粉管进入胚囊之前已开始退化,有些卵器的2个助细胞直到受精时仍保持正常的结构。花粉在柱头上萌发后,花粉管通过花柱通道到达珠孔,然后穿过退化的助细胞或助细胞与胚囊壁之间进入胚囊,并释放出2个精子和其它内含物。两个精子分别接近并贴附在卵核和两极核上,两性核的核膜溶解,精核染色质沉入雌核,并随之松解。最终雄性核仁和雌性核仁合并,形成具有单核的合子和初生胚乳核。初生胚乳核随即进行核分裂。通过鉴定两性核仁结合与否和观察胚乳核的分裂状况,可以判别茶树胚囊受精与否。
This paper studied the structure and fertilization process of tea oval. Tea tree oval by an egg and two helper cells. Some of the egg-like helper cells have started to degenerate before the pollen tube enters the embryo sac, and the 2 helper cells of some egg-shaped organs remain normal until fertilized. After pollen germinates on the stigma, the pollen tube reaches the perforation through the style channel and then passes between the degenerating helper or helper cells and the embryo wall into the embryo sac and releases 2 sperm and other inclusions. Two sperms were close to and attached to the egg and polar nuclei, the nuclear membrane of the nucleus dissolved, sperm chromatin sink into the gland, and then release. The final male nucleoli and female nucleoli are combined to form a mononuclear zygote and primary endosperm nucleus. Primary endosperm nuclei then undergo mitosis. By identifying whether or not the amphipathic nucleus integrates or not, and observing the division status of endosperm nuclei, it can be discriminated whether or not the tea embryo sac is fertilized.