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Sucrose

D(+)-Saccharose

Company: Carl Roth
Catalog#: 4621
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Multiplexed GuideRNA-expression to Efficiently Mutagenize Multiple Loci in Arabidopsis by CRISPR-Cas9
Author:
Date:
2017-03-05
[Abstract]  Since the discovery of the CRISPR (clustered regularly interspaced short palindromic repeats)-associated protein (Cas) as an efficient tool for genome editing in plants (Li et al., 2013; Shan et al., 2013; Nekrasov et al., 2013), a large variety of applications, such as gene knock-out, knock-in or transcriptional regulation, has been published. So far, the generation of multiple mutants in plants involved tedious crossing or mutagenesis followed by time-consuming screening of huge populations and the use of the Cas9-system appeared a promising method to overcome these issues. We designed a binary vector that combines both the coding sequence of the codon optimized Streptococcus pyogenes Cas9 nuclease under the control of the Arabidopsis thaliana ... [摘要]  自从发现CRISPR(聚集的定期交织的短回文重复) - 相关蛋白(Cas)作为植物基因组编辑的有效工具(Li等人,2013; Shan等人已经出版了诸如基因敲除,敲入或转录调控等各种各样的应用,例如,2013; Nekrasov等人,2013)。到目前为止,植物中多种突变体的产生涉及繁琐的杂交或诱变,随后大量人群的耗时筛选,Cas9系统的使用似乎是有希望的方法来克服这些问题。我们设计了一种二元载体,其结合了在拟南芥UBIQUITIN10(UBQ10)启动子和引导RNA(gRNA)控制下的优化的化脓性链球菌(Caspase)密码子的编码序列)由 A驱动的表现盒。拟南芥U6 - 启动子,用于在拟南芥中进行有效的多重编辑(阎等人,2016年)。在这里,我们描述了一个逐步的方案,以经济有效的方式生成含有多个gRNA的二元载体和基于经典克隆方法的Cas9核酸酶。背景 RNA引导的Cas9系统源于针对外源DNA的细菌防御系统(Sorek等人,2013)。由于其高效率,易于处理和多重编辑的可能性,已经被认为是基因组编辑的选择方法。通常,Cas9基因编辑系统涉及单个合成RNA分子,其指导Cas9蛋白质靶向所需DNA位点以进行基因组修饰或转录控制的gRNA。 gRNA-Cas9复合物通过gRNA-DNA配对识别靶向的DNA,并需要存在原始相邻基序(PAM)。 ...

Bacterial Growth Inhibition Assay for Xanthomonas oryzae pv. oryzae or Escherichia coli K12 Grown together with Plant Leaf Extracts
Author:
Date:
2016-12-20
[Abstract]  We performed a growth inhibition assay to test antibacterial compounds in leaf extracts from transgenic rice plants. The assay is based on over-night co-incubation of a defined concentration of colony forming units (cfu) of the respective bacteria together with aqueous extracts of ground leaf tissue. [摘要]  我们进行了生长抑制测定,以测试来自转基因水稻植物的叶提取物中的抗菌化合物。该测定是基于相应细菌的确定浓度的集落形成单位(cfu)与地面叶组织的水提取物的过夜共培养。

背景 对抗有害生物体的植物的防御可以针对特定病原体物种或病原体群体。针对增加作物病原体抗性,对抗特定疾病的育种可能是有用的,但最终目标是实施广谱抗病性。大米蛋白OsJAC1是一种模块化蛋白质,其由预测结合糖残基的茉莉酸相关凝集素结构域和可能在单粘菌偶联期间起作用的活性结构域组成。该融合蛋白特异于禾本科,代表一种新型的抗性蛋白。本文描述的方案用于评估过表达OsJAC1 cDNA cDNA(Weidenbach等人,2016)的转基因水稻植物的叶提取物的抗微生物能力。对于该测定,细菌实验室菌株大肠杆菌K12和细菌水稻病原体xanthomonas oryzae pv。使用oryzae 使用PXO86引起细菌性枯萎病。

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