Veronique Confurius-Guns

TL;DR: It is shown that a complete nif-gene cluster is present in the genome of M. chthonoplastes PCC 7420 and that the three structural nitrogenase genes, nifHDK, are present in a collection of axenic strains of M

TL;DR: Increased salinities caused decreased nitrogenase activity and were accompanied by a lower proportion of cyanobacterial nifH transcripts, which was strongest in mats higher up in the littoral zone.

TL;DR: The results indicate that Cyanothece modified the species composition of its associated bacteria through a combination of competition and facilitation, and within the bacterial community, niche differentiation appeared to play an important role, contributing to the coexistence of a variety of different functional groups.

TL;DR: It is speculated that the bacterial response to hydrographic changes and glacier meltwater is mediated through shifts in phytoplankton abundance and composition, whereas archaea are directly influenced by abiotic environmental variables.

TL;DR: These results suggest that various microbial mat members other than Cyanobacteria have their own molecular clock, which can be entrained by a cocktail of Zeitgebers such as light, temperature or metabolites from neighboring species, and microbial mats can be compared to a complex organism consisting of multiple sub-systems that have to beEntrained in a cooperative way such that the corpus functions optimally.