Imaging plant nuclei and membrane-associated cytoskeleton by field emission scanning electron microscopy.

Imaging plant nuclei and membrane-associated cytoskeleton by field emission scanning electron microscopy.
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通过场发射扫描电子显微镜对植物细胞核和膜相关细胞骨架进行成像。

DOI:
10.1007/978-1-62703-643-6_14
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发表时间:
2014
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
通讯作者:
Fišerová J
Fišerová J
中科院分区:
--
文献类型:
--
作者:
Fišerová J

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扫描电子显微镜(SEM)是一种强大的技术,可以对暴露的表面进行3D成像。现代扫描电子显微镜具有场发射电子源和透镜内样品室,分辨率优于0.5纳米,因此提供了亚细胞结构甚至大分子复合体的超微结构细节的视图。然而,获得可靠的图像依赖于牢固但准确地保存生物结构的样品制备方法。在植物中,由于细胞壁的存在,暴露感兴趣的对象可能很困难。该方案展示了如何从培养细胞以及叶或根细胞的核膜两侧分离植物核,以便对核膜及其相关结构进行扫描电子显微镜成像。此外,它还提供了一种揭示膜相关细胞骨架结构的方法。
Scanning electron microscopy (SEM) is a powerful technique that can image exposed surfaces in 3D. Modern scanning electron microscopes, with field emission electron sources and in-lens specimen chambers, achieve resolutions of better than 0.5 nm and thus offer views of ultrastructural details of subcellular structures or even macromolecular complexes. Obtaining a reliable image is, however, dependent on sample preparation methods that robustly but accurately preserve biological structures. In plants, exposing the object of interest may be difficult due to the existence of a cell wall. This protocol shows how to isolate plant nuclei for SEM imaging of the nuclear envelope and associated structures from both sides of the nuclear envelope in cultured cells as well as in leaf or root cells. Further, it provides a method for uncovering membrane-associated cytoskeletal structures.
用于扫描电子显微镜的免疫金标记。
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影响因子: --
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