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Boric acid (H3BO3)

Company: Fisher Scientific
Catalog#: A73-1
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A Low-volume Hydroponic Protocol for Maize and A Sensitive Bud-length Assay for Root-to-Shoot Impacts of The Strigolactone Analog, rac-GR24
Author:
Date:
2020-08-20
[Abstract]  Hydroponic approaches have been a boon for root research by facilitating root-feeding studies as well as secretion analysis. Results have aided our understanding of root-shoot signaling, transport, hormone function and more. However, existing approaches are often restricted to small plants and seedlings by prohibitive cost or availability of experimental substrates. In addition to this, research on the hormone, strigolactone (SL) has been constrained in species like maize by a lack of specific assays for quantifying responses. Here a low-volume hydroponic approach was developed for growing maize plants to the 3-leaf stage (about 2.5 weeks and 12 cm tall at the 2nd leaf collar) using 4 plants with 1 L of aerated media. This protocol also allowed development of an assay for ... [摘要]  [摘要 ] 通过促进根饲研究和分泌分析,水培方法已成为根研究的福音。结果有助于我们理解根射击信号,转运,激素功能等。然而,由于成本过高或实验底物的可获得性,现有方法通常仅限于小型植物和幼苗。除此之外,研究激素,独脚金(SL)已经在玉米等品种由于缺乏量化响应特定试验的限制。这里的低体积水培方法被用于玉米植物生长到3叶阶段(约2.5周和12厘米高的2开发第二LEA f领)使用4种植物和1升充气培养基。该协议还允许开发一种针对SL 类似物rac -GR24 的从根到芽影响的测定方法,该方法对玉米芽上侧芽的生长具有显着的,易于量化的影响。该协议的优势包括经济有效的简便性和精确度,可以量化从根到茎的SL 响应。此外,小体积水培方法可以很容易地用于玉米或其他高粱,C4草(如高粱,甘蔗和桔)的连续或脉冲型根饲研究,根标记实验和/或分泌物采样。

[背景 ] 的用于开发这里介绍的协议初始目的是量化的激素,根对枝条影响独脚金内酯(SL)在玉米中。推定松香内酯在该物种的驯化中起着核心作用,这是由于该激素对植物结构的贡献,以及因此对现代玉米的单茎形态造成的影响(关等人,2012 )。为了解决这种可能性,需要一种系统,该系统将1 )允许在这种大草种的初始营养生长期间进行根饲研究,2 )最小化使用的SL 类似物的数量和成本(rac -GR24),以及3 ...

Immunoprecipitation of Tri-methylated Capped RNA
Author:
Date:
2018-02-05
[Abstract]  Cellular quiescence (also known as G0 arrest) is characterized by reduced DNA replication, increased autophagy, and increased expression of cyclin-dependent kinase p27Kip1. Quiescence is essential for wound healing, organ regeneration, and preventing neoplasia. Previous findings indicate that microRNAs (miRNAs) play an important role in regulating cellular quiescence. Our recent publication demonstrated the existence of an alternative miRNA biogenesis pathway in primary human foreskin fibroblast (HFF) cells during quiescence. Indeed, we have identified a group of pri-miRNAs (whose mature miRNAs were found induced during quiescence) modified with a 2,2,7-trimethylguanosine (TMG)-cap by the trimethylguanosine synthase 1 (TGS1) protein and transported to the cytoplasm ... [摘要]  蜂窝静止(因此已知为G <子> 0 骤停)是由降低的DNA复制,增加自噬表征,并且增加的细胞周期蛋白依赖性激酶p27蛋白上标kip1 表达。静止对伤口愈合,器官再生和瘤形成是必不可少的。先前的发现表明微小RNA(miRNA)在调节细胞静止过程中起重要作用。我们最近的出版物静止期间以实例阐述在原代人替代miRNA生物途径包皮成纤维(HFF)细胞的存在。实际上,我们已经发现了一组与由trimethylguanosine合酶1(TGS1)蛋白的2,2,7- trimethylguanosine(TMG)带肩改性PRI-的miRNA(其成熟miRNA发现静止期期间诱导的)的并运输到细胞质通过Exportin-1(XPO1)蛋白质。我们用来抗体针对(TMG)兴趣盖(不与第(m交叉反应 7 G)兴趣帽了大部分PRI-的miRNA或mRNA的含有[鲁曼等人的,1982]),以从增殖或静态HFFS的总RNA提取RNA进行免疫沉淀。该测定的新颖性是PRI-miRNA的以及含有一个TMG-帽修改以外的非编码RNA的特异性分离。


【背景】蜂窝静止,类型可逆生长停滞的,是在伤口愈合,器官再生,和预防瘤形成涉及一种重要的细胞状态(科勒,2011;瓦尔古等人 2012)。已发现小的非编码RNA如miRNA参与细胞静止的调节。 ...

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