| Aspergillus terreus Infection of Fruits and Terrein Quantification by HPLC Analysis
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Author:
Date:
2016-06-20
[Abstract] The opportunistic fungal human and plant pathogen Aspergillus terreus (A. terreus) can be isolated from sea water, soil or decaying organic matter such as rotting leaves and fruits. While growing on fruits A. terreus produces secondary metabolites such as terrein, which may ease its penetration into plant tissues. In addition, biological activities of terrein may support competition against other microorganisms. In summary, terrein is a small polyketide that reduces germination of seedlings, induces lesions on fruit surfaces but also shows moderate antifungal ...
[摘要] 机体真菌人和植物病原菌土曲霉（A. terreus）可以从海水，土壤或腐烂的有机物质如腐烂的叶子和果实中分离出来。 当在水果上生长时，A. terreus产生次生代谢物如土曲杆菌，这可以缓解其渗透到植物组织中。 此外，土耳特蛋白的生物活性可能支持与其他微生物的竞争。 总而言之，土豆蛋白是一种减少幼苗发芽的小聚酮，诱发水果表面的病变，但也显示出中等的抗真菌活性。 使用这份手稿，我们提供了一种水果感染方案与土曲霉，随后使用基于HPLC的量化方法测定感染果实的土豆油生产率。
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| Spot Assays for Viability Analysis of Cyanobacteria
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Author:
Date:
2015-09-05
[Abstract] Cyanobacteria are prokaryotic organisms performing oxygenic photosynthesis. The cyanobacterium Synechocystis sp. PCC 6803 is a model organism for the study of photosynthesis, gene regulation and biotechnological applications because it is easy to manipulate genetically. Moreover, this cyanobacterium can grow photoautotrophically as well as chemoheterotrophically in the dark utilizing glucose. Microbiologists often use optical density measured with a spectrophotometer for the comparison of growth performance of different strains in liquid cultures. Because Synechocystis ...
[摘要] 蓝细菌是进行含氧光合作用的原核生物。蓝细菌集胞藻 PCC 6803是一种用于光合作用，基因调控和生物技术应用研究的模式生物，因为它易于基因操作。此外，这种蓝细菌可以在黑暗中利用葡萄糖光化自养地以及化学异养生长。微生物学家经常使用用分光光度计测量的光密度用于比较液体培养物中不同菌株的生长性能。因为 Synechocystis PCC 6803（特别是运动株）倾向于在胁迫条件下形成聚集体，该方法可能不适合在不同生长条件下评估不同的菌株。此外，许多实验室不能很好地配备标准化的光生物反应器和照明设施，以确保生长曲线的可重复性。在这里，我们描述了高度可重复的斑点测定的蓝细菌菌株的生存力分析。
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