The presence of the water soluble glycerophospholipid precursors choline and inositol in culture media highly affects lipid biosynthesis and regulation thereof. We report that widely used media ingredients contain trace amounts of choline and inositol that are not mentioned on the product label, influencing experimental outcome.

中文翻译：

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酵母培养基成分中的水溶性脂质前体污染物。

培养基中水溶性甘油磷脂前体胆碱和肌醇的存在高度影响脂质生物合成及其调节。我们报告说，广泛使用的培养基成分含有产品标签上未提及的痕量胆碱和肌醇，影响实验结果。