Photobody Detection Using Immunofluorescence and Super-Resolution Imaging in Arabidopsis.

Photobody Detection Using Immunofluorescence and Super-Resolution Imaging in Arabidopsis.
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在拟南芥中使用免疫荧光和超分辨率成像进行光体检测。

DOI:
10.1007/978-1-0716-1370-2_2
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发表时间:
2021
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
通讯作者:
Perrella G
Perrella G
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--
文献类型:
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作者:
Perrella G

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光引发植物核结构的变化以控制分化、适应和生长。一系列遗传、分子和成像方法已经揭示,细胞核形成光诱导蛋白质相互作用和基因调控事件的枢纽。然而,光诱导核区室化的机制和功能尚不清楚。本章提供了详细的实验方案,检查光信号的光诱导的亚核域,也被称为光体本地化组件的形态和潜在的功能意义。我们描述了如何免疫标记的内源性蛋白质和荧光原位杂交(FISH)可以与荧光标记的蛋白质的共聚焦成像相结合,以评估在拟南芥细胞核中的共定位。此外,我们采用超分辨率成像方法来研究前所未有的细节的光体形态。
Light triggers changes in plant nuclear architecture to control differentiation, adaptation, and growth. A series of genetic, molecular, and imaging approaches have revealed that the nucleus forms a hub for photo-induced protein interactions and gene regulatory events. However, the mechanism and function of light-induced nuclear compartmentalization is still unclear. This chapter provides detailed experimental protocols for examining the morphology and potential functional significance of light signaling components that localize in light-induced subnuclear domains, also known as photobodies. We describe how immunolabeling of endogenous proteins and fluorescent in situ hybridization (FISH) could be combined with confocal imaging of fluorescently tagged proteins to assess co-localization in Arabidopsis nuclei. Furthermore, we employ a super-resolution imaging approach to study the morphology of photobodies at unprecedented detail.
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