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Ammonium Iron(III) Citrate, Brown

柠檬酸铁铵(III)

公司名称: Wako Pure Chemical Industries
产品编号: 092-00802
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Evaluation of the Condition of Respiration and Photosynthesis by Measuring Chlorophyll Fluorescence in Cyanobacteria
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Date:
2018-05-05
[Abstract]  Chlorophyll fluorescence measurements have been widely used to monitor the condition of photosynthesis. Furthermore, chlorophyll fluorescence from cyanobacteria reflects the condition of respiration, since cyanobacterial photosynthesis shares several components of electron transport chain with respiration. This protocol presents the method to monitor the condition of both photosynthesis and respiration in cyanobacteria simply by measuring chlorophyll fluorescence in the dark and in the light with pulse amplitude modulation (PAM) chlorophyll fluorometer. [摘要]  叶绿素荧光测量已被广泛用于监测光合作用的状况。 此外,蓝细菌的叶绿素荧光反映了呼吸的状况,因为蓝藻光合作用与呼吸作用共享电子传递链的几个组成部分。 该协议提供了监测蓝藻光合作用和呼吸作用的方法,只需通过测量黑暗和光照下的叶绿素荧光以及脉冲幅度调制(PAM)叶绿素荧光计。

【背景】叶绿素荧光测量已广泛用于监测许多光合生物体的光合作用条件(Krause和Weis,1991; Govindjee,1995)。在蓝细菌的情况下,光合原核生物,叶绿素荧光不仅受光合作用条件的影响,而且还受其他代谢途径的影响,这是由于细胞内代谢途径之间的可能相互作用。特别是,光合作用和呼吸作用共享电子传递链的几个组成部分,如蓝细菌中的质体醌(PQ)(Aoki and Katoh,1982; Peschek and Schmetterer,1982)。 PQ池的氧化还原状态通过调节状态转变影响叶绿素荧光的产量(Mullineaux和Allen,1986; Mullineaux等人,1997),其是非天然存在的主要组分,蓝藻中的光化学猝灭(Campbell和Öquist,1996)。因此,蓝藻呼吸链直接影响叶绿素荧光,特别是在光合作用不活跃的黑暗中。

由于呼吸的影响,应谨慎测量叶绿素荧光以精确估计蓝藻中的光合作用(Ogawa et ...

Transformation of the Cyanobacterium Leptolyngbya boryana by Electroporation
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Date:
2015-12-20
[Abstract]  Leptolyngbya boryana (L. boryana) (formerly Plectonema boryanum) is a versatile, filamentous cyanobacterium that has the ability to fix nitrogen under microoxic conditions and to grow heterotrophically with glucose in the dark, providing an excellent system to investigate photosynthesis, nitrogen fixation, and their regulatory mechanisms. While L. boryana is not naturally transformable different from the unicellular cyanobacterium Synechocystis sp. PCC 6803, it can be transformed by electroporation. Here we describe the transformation of L. boryana ... [摘要]   Leptolyngbya boryana ( L。boryana )(以前称为Plectonema boryanum)是一种多用途的丝状蓝细菌,具有在微氧条件下固氮的能力, 在黑暗中与葡萄糖异养生长,提供了研究光合作用,固氮和它们的调节机制的优良系统。 而 L。 boryana 不是天然可转化的,不同于单细胞蓝细菌集胞藻。 PCC 6803,它可以通过电穿孔转化。 这里我们描述了 L的变换。 boryana通过电穿孔分离其中靶基因被破坏的突变体。

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