The eukaryotic nucleus is enclosed by the nuclear envelope, which is perforated by the nuclear pores, the gateways of macromolecular exchange between the nucleoplasm and cytoplasm. The nucleoplasm is organized in a complex three-dimensional fashion that changes over time and in response to stimuli. Within the cell, the nucleus must be viewed as an organelle (albeit a gigantic one) that is a recipient of cytoplasmic forces and capable of morphological and positional dynamics. The most dramatic reorganization of this organelle occurs during mitosis and meiosis. Although many of these aspects are less well understood for the nuclei of plants than for those of animals or fungi, several recent discoveries have begun to place our understanding of plant nuclei firmly into this broader cell-biological context.

中文翻译：

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植物细胞核的细胞生物学

真核细胞核被核膜包围，核膜被核孔穿孔，核孔是核质和细胞质之间大分子交换的门户。核质以复杂的三维方式组织，随着时间的推移和对刺激的反应而变化。在细胞内，细胞核必须被视为一个细胞器（尽管是一个巨大的），它是细胞质力的接受者，能够进行形态和位置动力学。这种细胞器最显着的重组发生在有丝分裂和减数分裂期间。尽管与动物或真菌相比，植物细胞核的这些方面中的许多方面不如动物或真菌的细胞核更好地理解，但最近的一些发现已开始将我们对植物细胞核的理解牢牢地置于这一更广泛的细胞生物学背景中。