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Superior triacylglycerol (TAG) accumulation in starchless mutants of Scenedesmus obliquus: (II) evaluation of TAG yield and productivity in controlled photobioreactors

机译:斜生香藻无淀粉突变体中的高级三酰基甘油(TAG)积累:(II)在受控光生物反应器中TAG产量和生产力的评估

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摘要

BackgroundMany microalgae accumulate carbohydrates simultaneously with triacylglycerol (TAG) upon nitrogen starvation, and these products compete for photosynthetic products and metabolites from the central carbon metabolism. As shown for starchless mutants of the non-oleaginous model alga Chlamydomonas reinhardtii, reduced carbohydrate synthesis can enhance TAG production. However, these mutants still have a lower TAG productivity than wild-type oleaginous microalgae. Recently, several starchless mutants of the oleaginous microalga Scenedesmus obliquus were obtained which showed improved TAG content and productivity.
机译:背景技术许多微藻在氮饥饿时会同时与三酰基甘油(TAG)一起积聚碳水化合物,这些产品竞争来自中央碳代谢的光合作用和代谢产物。如对于非油质模型藻衣藻的无淀粉突变体所示,减少的碳水化合物合成可以增强TAG的产生。但是,这些突变体仍比野生型油质微藻具有较低的TAG生产率。最近,获得了几个油质微藻斜生无藻突变体的无淀粉突变体,它们显示出改善的TAG含量和生产率。

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