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Company: VWR
Catalog#: 89082-272
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Detecting Spaciotemporal Transcript Accumulation in Maize by RNA In Situ Hybridization
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Date:
2021-02-20
[Abstract]  RNA in situ hybridization is a method for visualizing spatiotemporal transcript accumulation in cells and tissues. The method provides clear resolution, is highly sensitive and specific, and can uncover gradients of transcript accumulation within a histologically-intact tissue, which is not possible currently with other methods for transcript detection. RNA in situ hybridization, however, is not a quantitative approach for gene expression. Protocols for RNA in situ hybridization have numerous steps that can span several days of work, complicating troubleshooting procedures. Here, we build on previously published RNA in situ hybridization protocols optimized for paraffin-embedded and sectioned maize tissue (Jackson, 1991; Long et al., 1996 ; ... [摘要]  [摘要] RNA原位杂交是一种可视化时空转录本在细胞和组织中积累的方法。该方法提供清晰的分辨率,高度灵敏和特异,并且可以揭示组织完整的组织内转录物积累的梯度,这是当前其他方法无法检测到转录物的方法。然而,RNA原位杂交不是用于基因表达的定量方法。RNA原位杂交的协议有许多步骤,可能需要花费数天的时间,从而使故障排除过程变得更加复杂。在这里,我们基于先前发布的RNA原位构建 杂交方案针对石蜡包埋和切片的玉米组织进行了优化(Jackson,1991; Long等,1996;Javelle等,2011),它提供了优化转录本检测的其他措施。


图形摘要:


RNA原位杂交的工作流程



[背景技术]在时间和空间差异基因表达允许具有相同的遗传物质的细胞呈现不同的身份。确实,基因表达的这种变化通常负责驱动整个生物体中模式或形态的进化变化(Carroll,2005)。因此,通过观察组织内天然背景下的基因表达,可以增强对发育过程的见识。诸如RT-qPCR和RNA- ...

Toluidine Blue O Staining of Paraffin-Sectioned Maize Tissue
Author:
Date:
2020-05-05
[Abstract]  Histology incorporates microtechnique, the preparation of living material for observation and microscopy to study the anatomy of cells, tissues and organs. Interpreting histological patterns in a specimen may help to correlate form and function at the cellular, tissue and organ levels. Many stain options and staining methods (“schedules”) for plant tissues have been described previously (Johansen, 1940; Jensen, 1962; O’Brien and McCully, 1981; Sylvester and Ruzin, 1994; Ruzin, 1999). Here, we present a straightforward, inexpensive protocol that uses Toluidine Blue O (TBO) to stain maize tissue. TBO is a general metachromatic stain that can be used on paraffin-embedded histological sections, as well as fixed, hand-sectioned material. The value of TBO as a stain is the inherent ... [摘要]  [摘要] 组织学结合了微技术,用于观察和显微镜检查的活材料的制备,以研究细胞,组织和器官的解剖学,解释标本的组织学模式可能有助于在细胞,组织和器官水平上关联形式和功能。先前已经描述了植物组织的染色选择和染色方法(“时间表”)(Johansen ,1940; Jensen,1962; O'Brien和McCully,1981; Sylvester和Ruzin ,1994;Ruzin ,1999)。 在此,我们提出了一种简单,便宜的方案,该方案使用甲苯胺蓝O(TBO)对玉米组织进行染色.TBO是一种普通的变色染色剂,可用于石蜡包埋的组织学切片以及固定的手工切片材料TBO作为染色剂的价值是固有的变色,通过pH改变染料会导致紫蓝色变色。即使在用于鉴定植物细胞酸性成分的切片材料中,该特性也特别有用。使用玉米幼苗根,茎尖和成熟叶对细胞,组织和器官水平的染色进行染色(图2 )。

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