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Kimwipes, 1-Ply

Company: Fisher
Catalog#: 06-666
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Efficient Transient Gene Knock-down in Tobacco Plants Using Carbon Nanocarriers
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Date:
2021-01-05
[Abstract]  Gene knock-down in plants is a useful approach to study genotype-phenotype relationships, render disease resistance to crops, and enable efficient biosynthesis of molecules in plants. Small interfering RNA (siRNA)-mediated gene silencing is one of the most common ways to achieve gene knock-down in plants. Traditionally, siRNA is delivered into intact plant cells by coding the siRNA sequences into DNA vectors, which are then delivered through viral and/or bacterial methods. In this protocol, we provide an alternative direct delivery method of siRNA molecules into intact plant cells for efficient transient gene knock-down in model tobacco plant, Nicotiana benthamiana, leaves. Our approach uses one dimensional carbon-based nanomaterials, single-walled carbon nanotubes (SWNTs), to ... [摘要]  [摘要]植物基因敲低是研究基因型与表型关系,提高作物对病害的抵抗力以及实现植物分子高效生物合成的有用方法。小干扰RNA(siRNA)介导的基因沉默是在植物中实现基因敲低的最常见方法之一。传统上,通过将siRNA序列编码到DNA载体中,将siRNA传递到完整的植物细胞中,然后通过病毒和/或细菌方法传递。在这个协议中,我们提供的siRNA分子的替代直接递送方法为完整的植物细胞的高效瞬时根Ë击倒在模型的烟草植物,烟草本塞姆氏烟草,叶子。我们的方法使用一维碳基纳米材料,单壁碳纳米管(SWNTs)来传递siRNA,而不依赖于病毒/细菌的传递。我们方法的独特优势在于:i )不需要对siRNA序列进行DNA编码; ii)与非生物方法相比,这种非生物方法可在更广泛的植物物种中起作用,并且iii)使用非生物递送时,调节并发症更少方法,其中基因沉默是瞬时的,而无需对植物基因组进行永久性修饰。

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[背景技术[ 0002 ]在1990年代初,植物研究人员研究矮牵牛花的着色发现了通过RNA干扰(RNAi)引起的基因沉默(Van der ...

Pipecolic Acid Quantification Using Gas Chromatography-coupled Mass Spectrometry
Author:
Date:
2020-12-05
[Abstract]  

Pipecolic acid (Pip), a non-proteinacious product of lysine catabolism, is an important regulator of immunity in plants and humans alike. For instance, Pip accumulation is associated with the genetic disorder Zellweger syndrome, chronic liver diseases, and pyridoxine-dependent epilepsy in humans. In plants, Pip accumulates upon pathogen infection and is required for plant defense. The aminotransferase ALD1 catalyzes biosynthesis of Pip precursor piperideine-2-carboxylic acid, which is converted to Pip via ornithine cyclodeaminase. A variety of methods are used to quantify Pip, and some of these involve use of expensive amino acid analysis kits. Here, we describe a simplified procedure for quantitative analysis of Pip from plant tissues. Pipecolic acid was extracted from leaf tissues along

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[摘要]  [摘要]胡椒酸(Pip)是赖氨酸分解代谢的非蛋白质产物,是植物和人类免疫力的重要调节剂。例如,Pip积累与人类遗传病Zellweger综合征,慢性肝病和吡ido醇依赖性癫痫有关。在植物中,Pip会在病原体感染时积聚,是植物防御所必需的。氨基转移酶ALD1催化Pip前体哌啶-2-羧酸的生物合成,后者通过鸟氨酸环脱氨酶转化为Pip。多种方法可用于定量Pip,其中一些方法涉及使用昂贵的氨基酸分析试剂盒。在这里,我们描述了从植物组织中定量定量分析的简化程序。P ipecolic酸是从叶组织中提取与内标正缬氨酸一起衍生与丙基氯甲酸酯和分析通过气相色谱-质谱联用选择性离子模式。此过程简单,经济且有效,并且不涉及同位素内标或多步衍生化。

关键词:胡椒酸GC-MS拟南芥植物防御氯甲酸丙酯



[背景]匹,非蛋白氨基酸赖氨酸的氨基酸衍生物,积聚在病原体感染的植物的本地和远端的组织和患者的体液与过氧化物酶体疾病(Schutgens等人,1986;尹和An,2010;Návarová等人。,2012;王等人,2018) ...

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