The nuclear envelope delineates the eukaryotic cell nucleus. The membrane system of the nuclear envelope consists of an outer nuclear membrane and an inner nuclear membrane separated by a perinuclear space. It serves as more than just a static barrier, since it regulates the communication between the nucleoplasm and the cytoplasm and provides the anchoring points where chromatin is attached. Fewer nuclear envelope proteins have been identified in plants in comparison with animals and yeasts. Here, we review the current state of knowledge of the nuclear envelope in plants, focusing on its role as a chromatin organizer and regulator of gene expression, as well as on the modifications that it undergoes to be efficiently disassembled and reassembled with each cell division. Advances in knowledge concerning the mitotic role of some nuclear envelope constituents are also presented. In addition, we summarize recent progress on the contribution of the nuclear envelope elements to telomere tethering and chromosome dynamics during the meiotic division in different plant species.

中文翻译：

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核膜在细胞分裂过程中对染色质动力学的调节中的作用。

核被膜描绘了真核细胞核。核膜的膜系统由外核膜和被核周空间分隔的内核膜组成。它不仅可以充当静态屏障，还可以调节核质和细胞质之间的通讯，并提供染色质附着的锚定点。与动物和酵母菌相比，已经在植物中鉴定出更少的核被膜蛋白。在这里，我们回顾了植物核被膜的当前知识状态，着重于其作为染色质组织者和基因表达的调节剂的作用，以及其在每个细胞分裂中被有效拆卸和重新组装的修饰。还介绍了有关某些核被膜成分的有丝分裂作用的知识进展。此外，我们总结了在不同植物物种减数分裂过程中核被膜元素对端粒束缚和染色体动力学的贡献的最新进展。