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Trans-Blot® TurboTM system

Trans-Blot ® Turbo TM传输系统

公司名称: Bio-Rad Laboratories
产品编号: 1704150
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Isolation of Rice Stripe Virus Preparation from Viruliferous Small Brown Planthoppers and Mechanic Inoculation on Rice
Author:
Date:
2017-11-05
[Abstract]   Tenuiviruses can infect the plants of the family Poaceae, and cause serious loss of crops, particularly rice and maize, in South-Eastern Asian countries. Tenuiviruses usually depend on insect vectors for their transmission and cannot be transmitted between plants through wounds or abrasions. Rice stripe virus (RSV), a typical member of tenuiviruses, is efficiently transmitted by the small brown planthopper Laodelphax striatellus in a persistent-propagative manner to cause rice stripe disease. Here we presented a convenient method, the midrib micro-injection, to mechanically ... [摘要]  细菌病毒可以感染禾本科植物,并在东南亚国家造成严重的作物损失,特别是稻米和玉米。 病毒通常依靠昆虫载体传播,不能通过伤口或擦伤传播。 水稻条纹病毒(RSV)是典型的tenuiviruses的成员,以持续繁殖的方式被小型褐飞虱灰飞虱高效率地传播,导致水稻条纹病。 在这里,我们提出了一种方便的方法,即中微量注射,以机械方式将昆虫来源的RSV接种到水稻叶中,以对水稻植物进行致病性测定。
【背景】除非通过根据不同的实验细节从1%至90%的完全不同的传输速率进行血管穿刺接种(Louie,1995; Hogenhout等人,2008),否则不能将机器接种到植物中。至于RSV,机械传播通常失败或产生低感染率(Ling,1972)。特别地,从病变植物注射RSV粗提物后,传播率仅为6%(Okuyama and Asuyama,1959)。在这项工作中提到的中微注射方法将RSV传播率提高到17%。虽然机械传播RSV的发生率仍远低于昆虫载体传播(53%),但是我们的方法为持续繁殖的植物病毒的机械接种提供了便利的方法。此外,基于这种方法,可以在受感染的植物宿主中更精确地确定持续增殖植物病毒的复制和基因表达,而不受昆虫即接种剂量和昆虫蛋白质的干扰。

Lipid Extraction from HeLa Cells, Quantification of Lipids, Formation of Large Unilamellar Vesicles (LUVs) by Extrusion and in vitro Protein-lipid Binding Assays, Analysis of the Incubation Product by Transmission Electron Microscopy (TEM) and by Flotation across a Discontinuous Sucrose Gradient
Author:
Date:
2016-10-20
[Abstract]  Dissecting the interactions established between proteins and membranes in a given type of cells is not an easy task. Using a cell-free system of large unilamellar vesicles (LUVs) to analyze these interactions may help decipher these interactions and identify potential membrane deformations induced by the proteins incubated with these LUVs. This article describes the protocols for 1) extraction of total lipids from eukaryotic cells using the method developed by Bligh and Dyer (1959), 2) the quantification of glycerophospholipids by gas chromatography after methanolysis, followed by 3) the ... [摘要]  解剖在给定类型的细胞中蛋白质和膜之间建立的相互作用不是一个容易的任务。使用大单层囊泡(LUV)的无细胞系统来分析这些相互作用可以帮助破译这些相互作用和识别由与这些LUV孵育的蛋白质诱导的潜在的膜变形。本文介绍了1)使用由Bligh和Dyer(1959)开发的方法从真核细胞中提取总脂质,2)在甲醇分解后通过气相色谱法定量甘油磷脂,然后3)通过挤出形成LUV的方案, 4)蛋白质 - 脂质结合测定,5)通过透射电子显微镜(TEM)和通过不连续蔗糖梯度浮选分析孵育产物,最后,6)通过免疫印迹分析蛋白质并通过碘素熏蒸显示甘油磷脂。

[背景] 包含巨单层囊泡(GUV;由单个磷脂双层组成,直径大于1μm)或脂质体孵育的无细胞系统与重组蛋白可能有助于了解这些相互作用。根据它们的直径和层数,脂质体被分为小的单层囊泡(SUV;由单个磷脂双层构成的囊泡,直径在20和100nm之间),大的单层囊泡(LUV;由单个双层磷脂,并且直径在100和400nm之间),大多层囊泡(MLV;由多个磷脂双层构成且直径在200nm和3μm之间的囊泡)和多泡囊泡(MVV);由囊泡组成的大囊泡单个双层磷脂,并含有几个较小的囊泡,每个囊泡由单个双层磷脂组成)。 ...

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