Stress-Induced Lipid Accumulation in Emiliania Huxleyi: Impact on Trophic Ecology and Paleothermometry

摘要赫胥黎Emiliania huxleyii中性脂包括一组烯酮及其相关化合物，其不饱和程度受生长温度的影响。这些化合物作为古温度的指示物引起了相当大的兴趣。在这项研究中，俄勒冈州立大学和加州州立大学奇科分校的研究人员将对各种赫胥黎大肠杆菌菌株中的这些化合物进行一系列实验室研究。这些实验的目的是验证这样一种假设，即这些化合物在生长限制和环境条件变化期间起着能量储存的作用。此外，他们还将验证一种假设，即这些化合物含量高的藻类在营养上不太适合原生动物食草。

ABSTRACTOCE-0002186The neutral lipids of Emiliania huxleyii include a characteristic set of alkenones and related compounds with degrees of unsaturation influenced by growth temperature. These compounds have attracted considerable interest as indicators of paleotemperature. In this study, researchers at Oregon State University and California State University at Chico will carry out a set of laboratory investigations of these compounds in a variety of E. huxleyii strains. The experiments would be designed to test the hypothesis that these compounds function as energy stores during growth limitation and following shifts in environmental conditions. Additionally, they would test the hypothesis that algae with high levels of these compounds are nutritionally less suitable for protozoan grazers.