Bakterien der Gattung Roseobacter vor der Küste Mauretaniens

该项目是2006年7月/8月在毛里塔尼亚海岸外进行的Meteor 68/3号巡航的一部分，目的是探索玫瑰花属细菌在热带大西洋东部上升流区的重要性。通过使用分子生物学技术，如与荧光探针杂交，（CARD-FISH）和DNA指纹（变性梯度凝胶电泳和测序），它将调查这一重要细菌群的小规模分布和异质性，并侧重于分析实验，以表征Roseelum在西非叶绿素最大值的生态潜力，其对竞争变化的反应，捕食以及光照条件的变化。本研究将采用综合方法，将联合收割机的船上操作实验评价与实地样品调查及其与复杂的现场环境变量数据集的相关性结合起来。

This project is part of the Meteor 68/3 cruise in July/August 2006 off the coast of Mauretania and aims at exploring the importance of the bacterial genus Roseobacter in an eastern Tropical Atlantic upwelling area. By using molecular biological techniques such as hybridisation with oligonucleottde probes (CARD-FISH) and DNA-fingerprinting (Denaturing Gradient Gel Electrophoresis and Sequencing) it will investigate the small-scale distribution and heterogeneity of this important bacterial cluster and focus on the analysis of experiments to characterize the ecological potentials of Roseobacter in the chlorophyll maximum off western Africa, its responses to shifts in competition, predation as well as to changes in light conditions. Following an integrated approach, this study will combine the evaluation of manipulation experiments onboard and the investigation of field samples and their correlation with complex in situ data sets on environmental variables.