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Methanol

甲醇

公司名称: Wako Pure Chemical Industries
产品编号: 132-06471
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Extraction and Measurement of Abscisic Acid in a Unicellular Red Alga Cyanidioschyzon merolae
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Date:
2016-12-05
[Abstract]  Abscisic acid (ABA) has been known as a phytohormone of land plants, which is synthesized in response to abiotic stresses and induces various physiological responses, but is also found from eukaryotic algae. Recently, we reported that a unicellular red alga Cyanidioschyzon merolae produced ABA, which prevented cell growth and enhanced salt stress tolerance (Kobayashi et al., 2016). This report describes the detailed method for the extraction and quantification of ABA in the model red alga C. merolae. [摘要]  脱落酸(ABA)已知为陆生植物的植物激素,其响应于非生物胁迫合成并诱导各种生理反应,但也可从真核藻类中发现。最近,我们报道了单细胞红藻(Cyanidioschyzon merolae)产生ABA,其阻止细胞生长和增强盐胁迫耐受性(Kobayashi等人,2016)。该报告描述了在红海藻模型中提取和定量ABA的详细方法。 。
关键字:脱落酸,藻类, Cyanidioschyzon merolae ,HPLC,植物激素

] 植物激素ABA已在发散光合真核生物中发现,但单细胞藻类的功能仍不清楚。在最近的研究中,我们显示单细胞红藻。 melorae 通过本方案累积ABA以应答盐胁迫。这是用于从C中提取和定量ABA的第一已公布方案的细节。 merolae 。此协议针对 C进行了优化。基于陆地植物协议的。

Analysis of L- and D-Amino Acids Using UPLC
Author:
Date:
2014-09-05
[Abstract]  With the exception of glycine, α-amino acids are optically active, and two optical isomers (L- and D-) of each amino acid can be formed. Recent developments of analytical techniques have revealed that several free D-amino acids such as D-aspartate, D-serine and D-alanine exist in many kinds of organism including human and have biologically important roles. D-Aspartate regulates reproductive activity in animals and humans. D-Serine serves as a co-agonist of the N-methyl-D-aspartate receptor, which mediates glutamatergic neurotransmission. D-Alanine plays a role like osmolyte in ... [摘要]  除了甘氨酸,α-氨基酸具有光学活性,并且可以形成每个氨基酸的两种光学异构体(L-和D-)。分析技术的最新发展表明,几种游离D-氨基酸如D-天冬氨酸,D-丝氨酸和D-丙氨酸存在于包括人在内的许多种生物中,并且具有生物学上的重要作用。 D-天冬氨酸调节动物和人的生殖活性。 D-丝氨酸作为Nε-甲基-D-天冬氨酸受体的共激动剂,其介导谷氨酸能神经传递。 D-丙氨酸在甲壳类动物和软体动物中起到类似渗透物的作用。在该协议中,我们描述了使用超高效液相色谱(UPLC)分析L-和D-氨基酸的方法。为了分析D-和L-氨基酸,首先将对映异构体转化为非对映异构体(非对映异构体是与物镜和镜像无关的立体异构体,并且不是对映异构体),使用前柱衍生化,邻苯二甲醛加上Nε - 酰化的半胱氨酸(Nε - 乙酰基-L-半胱氨酸或Nε - 叔丁基氧羰基-L 。所得衍生物是荧光非对映异构体。然后使用UPLC在十八烷基硅烷基固定相上分离所得荧光异吲哚衍生物,并通过包括在UPLC系统中的荧光检测器检测荧光。使用该方法,可以分析16种D-氨基酸。

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