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Sucrose

Company: Sigma-Aldrich
Catalog#: S5391
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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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Micropropagation of Prickly Pear by Axillary Shoot Proliferation
Author:
Date:
2018-07-05
[Abstract]  A protocol for the axillary bud proliferation of prickly pear (Opuntia; Cactaceae) is presented. This genus is widely used as a crop in the arid and semi-arid areas of the globe worldwide, providing numerous benefits for human and animal consumption. In vitro culture for axillary bud proliferation is of great use to obtain a large quantity of plants in a short period of time, with potential uses in production and for the preservation of endangered species of the Opuntia genus.

The optimal medium for Opuntia in vitro culture consists of Murashige and Skoog medium (MS) and L2 vitamins. To increase the yield of the axillary bud proliferation, we recommend the addition of plant growth regulators (PGRs). This work suggests a 15 d incubation in the ...
[摘要]  提出了刺梨( Opuntia; Cactaceae )腋芽增殖的方案。 该属广泛用作全球干旱和半干旱地区的作物,为人类和动物消费提供了许多益处。 腋芽增殖的体外培养对于在短时间内获得大量植物具有重要意义,可用于生产和保存罂粟的濒危物种 属。

仙人掌体外培养的最佳培养基由Murashige和Skoog培养基(MS)和L2维生素组成。 为了增加腋芽增殖的产量,我们建议添加植物生长调节剂(PGRs)。 这项工作表明在含有2.2mg / L苄基氨基嘌呤(BA)的培养基中培养15天,然后将外植体转移到不含PGR的培养基中。 我们还解释了如何使植物适应体外条件。

【背景】仙人掌(刺梨)属是仙人掌科家族的成员之一(Bravo-Hollis,1978)。虽然它原产于美洲,但目前生长在欧洲南部,非洲北部,澳大利亚,中东,西亚和世界其他地区的野生和商业种植园中(Ochoa和Barbera,1995; Kiesling和Metzing) ,2017)。仙人掌对干旱和半干旱环境以及生活在这些地区的人类群落产生了深远的影响,因为尽管在干旱地区生长,其生物量仍然很高(Acevedo et al。,1983)。在许多这样的领域, Opuntia 属被用于许多方面。 仙人掌的幼枝可以作为蔬菜食用;水果直接食用或加工成果冻,果汁或糖果(Barba et ...

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