@article{GarciaMcMahonGrossartetal.2014,
  author    = {Garcia, Sarahi L. and McMahon, Katherine D. and Grossart, Hans-Peter and Warnecke, Falk},
  title     = {Successful enrichment of the ubiquitous freshwater acI Actinobacteria},
  series = {Environmental microbiology reports},
  volume    = {6},
  journal   = {Environmental microbiology reports},
  number    = {1},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {1758-2229},
  doi       = {10.1111/1758-2229.12104},
  pages     = {21 -- 27},
  year      = {2014},
  abstract  = {Actinobacteria of the acI lineage are often the numerically dominant bacterial phylum in surface freshwaters, where they can account for >50\% of total bacteria. Despite their abundance, there are no described isolates. In an effort to obtain enrichment of these ubiquitous freshwater Actinobacteria, diluted freshwater samples from Lake Grosse Fuchskuhle, Germany, were incubated in 96-well culture plates. With this method, a successful enrichment containing high abundances of a member of the lineage acI was established. Phylogenetic classification showed that the acIActinobacteria of the enrichment belonged to the acI-B2 tribe, which seems to prefer acidic lakes. This enrichment grows to low cell densities and thus the oligotrophic nature of acI-B2 was confirmed.},
  language  = {en}
}
@article{GarciaBuckMcMahonetal.2015,
  author    = {Garcia, Sarahi L. and Buck, Moritz and McMahon, Katherine D. and Grossart, Hans-Peter and Eiler, Alexander and Warnecke, Falk},
  title     = {Auxotrophy and intrapopulation complementary in the "interactome' of a cultivated freshwater model community},
  series = {Molecular ecology},
  volume    = {24},
  journal   = {Molecular ecology},
  number    = {17},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {0962-1083},
  doi       = {10.1111/mec.13319},
  pages     = {4449 -- 4459},
  year      = {2015},
  abstract  = {Microorganisms are usually studied either in highly complex natural communities or in isolation as monoclonal model populations that we manage to grow in the laboratory. Here, we uncover the biology of some of the most common and yet-uncultured bacteria in freshwater environments using a mixed culture from Lake Grosse Fuchskuhle. From a single shotgun metagenome of a freshwater mixed culture of low complexity, we recovered four high-quality metagenome-assembled genomes (MAGs) for metabolic reconstruction. This analysis revealed the metabolic interconnectedness and niche partitioning of these naturally dominant bacteria. In particular, vitamin- and amino acid biosynthetic pathways were distributed unequally with a member of Crenarchaeota most likely being the sole producer of vitamin B12 in the mixed culture. Using coverage-based partitioning of the genes recovered from a single MAG intrapopulation metabolic complementarity was revealed pointing to social' interactions for the common good of populations dominating freshwater plankton. As such, our MAGs highlight the power of mixed cultures to extract naturally occurring interactomes' and to overcome our inability to isolate and grow the microbes dominating in nature.},
  language  = {en}
}