Biomineralisationsprozesse, Biogeochemie und Biodiversität chemolithotropher Mikroorganismen im Tunnel von Äspö (Schweden)

出现在艾斯波硬岩实验室不同深度的微生物（艾斯珀隧道）作为深部大陆生物圈生物多样性和结构的模式系统，以及微生物过程和矿物沉淀的相互作用，研究的主要方面是（1）微生物系统的生物多样性，包括宏基因组学，（2）代谢途径和生物矿化过程，包括EPS控制的选择性阳离子结合和复合物形成;（3）涉及深层生物圈微生物的生物地球化学过程的无机和有机生物特征。后一个主题将强调用于分析小型环境样品的小型化技术（特别是GC/MS、ToF-SIMS、拉曼光谱），以及建立化石深层生物圈的生物标志物代用品。

Microorganisms occurring at different depths in the Äspö Hard Rock laboratory (tunnel of Äspö) are studied as model systems for the biodiversity and structure of the deep continental biosphere, and the interaction of microbiological processes and mineral precipitation.Major aspects investigated are (1) the biodiversity of microbial systems including metagenomics, (2) metabolic pathways and biomineralization processes, including EPS-controlled selective cation binding and complex formation, (3) inorganic and organic biosignatures for biogeochemical processes involving deep biosphere microorganisms. The latter topic will emphasize miniaturized techniques for analysing small environmental samples (particularly GC/MS, ToF-SIMS, RAMAN-spectroscopy), and the establishment of biomarker proxies for a fossil deep biosphere.