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Articles of Significant Interest Selected from This Issue by the Editors

机译:编辑从本期中精选的重要文章

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Phytoplankton replace phosphorus (P)-containing membrane lipids with non-P analogues, enhancing growth in P-limited oceans. Here Hunter et al. (e02034-17) describe lipid substitution dynamics in the model marine diatom Thalassiosira pseudonana. Substitution is shown to follow a prior depletion of nonlipid cellular P and to proceed via a switch in biosynthesis accompanied by a minor degree of degradative breakdown, releasing P for other processes. The remaining P-containing lipids become more highly unsaturated in fatty acid composition, and several diglycosylceramide lipid substitutes are also reported. This work contributes to our mechanistic understanding of this powerful and widespread adaptation to P stress.
机译:浮游植物用非磷类似物替代含磷(P)的膜脂质,从而增强了磷限制海洋中的生长。在这里,亨特等。 (e02034-17)描述了模型海洋硅藻Thalasiosira pseudonana中的脂质替代动力学。取代被显示为先于非脂质细胞P的消耗,并通过生物合成的转换进行,伴随着较小程度的降解分解,将P释放用于其他过程。其余的含P脂质在脂肪酸组成中变得更加高度不饱和,并且还报道了几种二糖基神经酰胺脂质替代物。这项工作有助于我们对这种对P应力的强大而广泛的适应性进行机械理解。

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