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AX70 Research Microscope

AX70研究显微镜

公司名称: Olympus
产品编号: AX70
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Target Gene Inactivation in Cyanobacterium Anabaena sp. PCC 7120
Author:
Date:
2016-08-05
[Abstract]  Anabaena sp. strain PCC 7120 has long served as a model organism for investigating N2-fixation, photosynthesis, and various plant-type metabolic pathways and biofuel production, as well as cellular differentiation (Xu et al., 2008, Halfmann et al., 2014, Golden and Yoon, 2003). Since more than 30,000 sequenced bacterial genomes are currently available (Land et al., 2015), specific gene inactivation and analyses of the corresponding mutant’s phenotype have become powerful tools in elucidating the function of a target gene. Here we describe a ... [摘要]   菌株PCC 7120长期充当用于研究N 2 - 固定,光合作用和各种植物类型代谢途径和生物燃料生产以及细胞分化的模式生物体(Xu等人,/em>。,2008,Halfmann等人,2014,Golden and Yoon,2003)。由于目前可获得超过30,000个测序的细菌基因组(Land等人,2015),特异性基因失活和相应突变体表型的分析已成为阐明靶基因功能的有力工具。在这里,我们描述了灭活anabaena sp中的靶基因的方案。 PCC 7120使用单交叉方法。该方法仅需要将靶基因的内部片段一步克隆到整合载体中以产生货物质粒。在货物质粒和鱼腥藻染色体之间的单次交换(同源重组)时,内源靶基因通过产生3'-和5'-缺失的片段而被破坏。该基因失活方案基于整合载体pZR606(Chen等人,2015),其可以广泛应用于其他蓝细菌物种以及其他原核生物中的基因失活。

Thin Sections of Technovit 7100 Resin of Rice Endosperm and Staining
Author:
Date:
2014-09-20
[Abstract]  Starch is a biologically and commercially important carbohydrate that is accumulated in plant storage organs, such as seed endosperm. Starch is water-insoluble and forms transparent grains, referred to as starch grains (SGs). SGs are easily stained by iodine solution and can be observed under a normal microscope. Technovit 7100 resin is suitable for preparation of thin sections from endosperm. The thin sections and iodine staining can visualize SGs clearly inside the endosperm cell. This protocol provides the procedures to prepare thin sections of Technovit 7100 resin from rice endosperm. It ... [摘要]  淀粉是在植物储存器官(例如种子胚乳)中积累的生物学上和商业上重要的碳水化合物。 淀粉是水不溶性的并且形成称为淀粉颗粒(SGs)的透明颗粒。 SGs容易被碘溶液染色,并且可以在正常显微镜下观察。 Technovit 7100树脂适用于从胚乳制备薄切片。 薄切片和碘染色可以明显地在胚乳细胞内部显现SG。 该协议提供了从水稻胚乳制备Technovit 7100树脂薄片的程序。 它也可以适用于其他植物物种的种子。

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