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2,4-Dichlorophenoxyacetic acid, Cl2C6H3OCH2CO2H

2,4-二氯苯氧基乙酸

Company: Sigma-Aldrich
Catalog#: D7299
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Efficient Agrobacterium-mediated Transformation of the Elite–Indica Rice Variety Komboka
Author:
Date:
2020-09-05
[Abstract]  Genetic transformation is crucial for both investigating gene functions and for engineering of crops to introduce new traits. Rice (Oryza sativa L.) is an important model in plant research, since it is the staple food for more than half of the world’s population. As a result, numerous transformation methods have been developed for both indica and japonica rice. Since breeders continuously develop new rice varieties, transformation protocols have to be adapted for each new variety. Here we provide an optimized transformation protocol with detailed tips and tricks for a new African variety Komboka using immature embryos. In Komboka, we obtained an apparent transformation rate of up to 48% for GUS/GFP reporter gene constructs using this optimized protocol. This ... [摘要]  
[摘要 ] 遗传转化对于研究基因功能和农作物工程引入新性状均至关重要。水稻(Oryza sativa L.)是植物研究中的重要模型,因为它是世界一半以上人口的主食。其结果是,大量的转化方法已经开发了两个籼稻和粳稻米。由于育种者不断开发新的水稻品种,因此必须针对每个新品种适应转化方案。在这里,我们为使用未成熟胚的非洲新品种Komboka 提供了一种优化的转化协议,包括详细的技巧和窍门。在Komboka中,我们使用此优化方案对GUS / GFP报告基因构建体的表观转化率高达48%。该协议也适用于其他优质lite 稻品种。


[背景 ] 为植物的遗传转化的各种方法公顷一直在开发,例如穿孔(Shimamoto PEG介导的原生质体转染。等人,1989;达塔。等人,1992),生物射弹转化(Christou的等人,1991)和农杆菌-介导的转化(Slamet-Loedin 等,2014)。农杆菌介导的转化是将DNA引入植物的最广泛使用的方法之一(van Wordragen and Dons,1992)。该方法已被广泛用于研究,并已成为生物技术的关键先决条件。自从开发新的育种技术(如基因组编辑)以来,它就变得越来越重要(Char ...

MAMP-triggered Medium Alkalinization of Plant Cell Cultures
Author:
Date:
2020-04-20
[Abstract]  Plants recognize a wide variety of microbial molecules to detect and respond to potential invaders. Recognition of Microbe-Associated Molecular Patterns (MAMPs) by cell surface receptors initiate a cascade of biochemical responses that include, among others, ion fluxes across the plasma membrane. A consequence of such event is a decrease in the concentration of extracellular H+ ions, which can be experimentally detected in plant cell suspensions as a shift in the pH of the medium. Thus, similarly to reactive oxygen species (ROS) accumulation, phosphorylation of MAP kinases and induction of defense-related genes, MAMP-induced medium alkalinization can be used as a proxy for the activation of plant immune responses. Here, we describe a detailed protocol for the measurement of ... [摘要]  [摘要 ] 植物识别多种微生物分子以检测和响应潜在的入侵者,通过细胞表面受体识别微生物相关的分子模式(MAMP)引发一系列生化反应,其中包括跨血浆的离子通量此类事件的后果是细胞外H + 离子浓度降低,这可以通过实验检测到植物细胞悬浮液中培养基pH值的变化,因此类似于活性氧(ROS)积累, MAP激酶的磷酸化和防御相关基因的诱导,MAMP诱导的培养基碱化可以用作激活植物免疫反应的代理。在这里,我们描述了测量烟草BY-2细胞培养基碱化的详细方案两种不同MAMP处理后的悬浮液:衍生自真菌细胞壁的壳六聚体(NAG6; N-乙酰氨基葡萄糖)和鞭毛蛋白表位flg22 ,在细菌鞭毛发现。氏S分析提供了可靠和快速的平台来访问毫安时触发免疫(在MTI)在烟草悬浮细胞,并且可以很容易地适应其他植物物种以及其他毫安。

[背景 ] 在整个进化过程中,植物都具有检测微生物衍生分子并建立起能够抓住有害相互作用的免疫反应的能力(Boutrot和Zipfel,2017年)。诱导此类免疫反应的微生物相关分子模式(MAMP)通常被广泛保存。微生物的结构成分,例如真菌的几丁质和细菌的鞭毛蛋白(Cook 等人,2015)。胞外植物受体对MAMP的识别会导致MAMP触发的免疫(MTI),从而阻止微生物入侵并维持植物健康。(Böhmet al。,2014)。

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In vitro Floral Induction of Cuscuta reflexa
Author:
Date:
2017-01-20
[Abstract]  Floral initiation and development in the angiosperms is the essential step on which the yield of the plant depends. Sometimes external climate or any abiotic stress hinders the floral initiation and ultimately affect the plant yield. Hence, in vitro floral induction and development can help to overcome the external climatic factor. Furthermore, the protocol for in vitro floral induction in the parasitic angiosperm like Cuscuta reflexa has not been reported yet. We have standardized the protocol for floral induction in the parasitic plant Cuscuta reflexa. In this study it is established that MMS (modified Murashige Skoog) media supplemented with 2 mg L-1 NAA (naphthalene acetic acid, plant growth regulator) and 2 mg L-1 2,4-D ... [摘要]  被子植物的花卉引发和发育是植物产量依赖的关键步骤。有时,外部气候或任何非生物胁迫阻碍花卉开始,最终影响植物产量。因此,体外花卉诱导和发育可以帮助克服外部气候因素。此外,尚未报道如在睾丸反射中的寄生被子植物体外花诱导的方案。我们已经规定了寄生植物茧丝反射中花诱导的方案。在本研究中,确定补充有2mg L NAA(萘乙酸,植物生长调节剂)和2mg L -1的MMS(改良的Murashige Skoog)培养基> 2,4-D(2,4-二氯苯氧基丙酸,植物生长调节剂)在体外拍摄后支持花诱导。此外,我们发现补充有2mg L-sup-2,4-D的MMS培养基从淋巴结外植体直接快速诱导花蕾,而没有任何芽伸长。该协议将有助于研究人员在其他被子植物植物中诱导花along与镰刀菌反射。背景 睾丸反射是寄生在大量被子植物上寄生的被子植物(Kuijt,1969)。在宿主植物中造成严重损害和产量损失的能力使得该物种对科学研究非常重要(Nun and Mayer,1999)。除了少数具有功能性叶绿体(Hibberd等人,1998)之外,大多数Cuscuta 物种是非叶绿体。从较大的胚胎开发幼苗。已经报道了白色介质中的反射(Maheshweri和Baldev,1961)。花卉诱导。反射炎在短时间内以及黑暗条件已经在体外中看到(Baldev,1962)。 ...

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