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An extremely low‐light adapted phototrophic sulfur bacterium from the Black Sea
Five strains of a brown phototrophic sulfur bacterium (Chlorobium phaeobacteroides) were isolated from the chemocline of the Black Sea and revealed extreme low-light adaptation of growth compared to 12 other green and purple sulfur bacterial strains.
Life at the oxic-anoxic interface: microbial activities and adaptations.
Three case studies were selected to illustrate the basic situation and the specific characteristics of oxic-anoxic interfaces: sediments, the rhizosphere of aquatic plants, and the intestinal tract of insects.
Distributions of Microbial Activities in Deep Subseafloor Sediments
Diverse microbial communities and numerous energy-yielding activities occur in deeply buried sediments of the eastern Pacific Ocean and these sedimentary communities may supply dissolved electron donors and nutrients to the underlying crustal biosphere.
Cyclic AMP and Acyl Homoserine Lactones Increase the Cultivation Efficiency of Heterotrophic Bacteria from the Central Baltic Sea
Bacterial cells of strain G100 that were starved for 6 weeks attained a higher growth rate and a higher biomass yield when resuscitated in the presence of cAMP instead of AMP, pointing towards an inherent limitation of the MPN approach, which does not necessarily recover abundant species from highly diverse communities.
Monoalkylether phospholipids in the sulfate-reducing bacteria Desulfosarcina variabilis and Desulforhabdus amnigenus
Cellular lipid compositions of two mesophilic sulfate-reducing bacteria were analyzed by high performance liquid chromatography-mass spectrometry and alkylether-containing phospholipids were detected which had previously only been found in significant amounts in deeply branching hyperthermophilic bacteria and archaea.
The complete genome sequence of the algal symbiont Dinoroseobacter shibae: a hitchhiker's guide to life in the sea
Dinoroseobacter shibae DFL12T, a member of the globally important marine Roseobacter clade, comprises symbionts of cosmopolitan marine microalgae, including toxic dinoflagellates, and shows the most complex viral defense system of all Rhodobacterales sequenced to date.
Deep biosphere-related bacteria within the subsurface of tidal flat sediments.
- R. Wilms, Beate Köpke, H. Sass, T. Chang, H. Cypionka, B. Engelen
- Environmental ScienceEnvironmental microbiology
- 1 April 2006
Investigation of sediment columns of tidal flats revealed that different compartments of the sediment columns were characterized by specific microbial communities, which indicates the presence of a typical deep-biosphere microbial community in relatively young subsurface sediments.
Evaluation of cell activity and of methods for the cultivation of bacteria from a natural lake community
Most of the bacteria in Zwischenahner Meer are able to grow and divide, but do not reach high cell densities even in improved culture media, therefore, the majority of bacteria may be classified as viable but nonculturable, but would not be detected by the CTC reduction method.
Microbial Diversity in Coastal Subsurface Sediments: a Cultivation Approach Using Various Electron Acceptors and Substrate Gradients
- Beate Köpke, R. Wilms, B. Engelen, H. Cypionka, H. Sass
- Environmental ScienceApplied and Environmental Microbiology
- 1 December 2005
The majority of the isolates grew well under anoxic conditions, by fermentation, or by anaerobic respiration with nitrate, sulfate, ferrihydrite, or manganese oxides as electron acceptors.