Microbial ecology articles within Nature Communications

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  • Article
    | Open Access

    Understanding the factors determining pathogen host range is critical for human health. Here, the authors show that bacteria use cooperative secretions to modify their environment and to infect multiple host species, which suggests that cooperative secretions are key determinants of host range in bacteria.

    • Luke McNally
    • , Mafalda Viana
    •  & Sam P. Brown

  • Article
    | Open Access

    Intestinal microbes can have important effects on our health. Here, the authors analyse the gut microbiota composition in 1,000 western adults and find that certain bacteria are either abundant or nearly absent, and that these alternative states are associated with ageing and overweight.

    • Leo Lahti
    • , Jarkko Salojärvi
    •  & Willem M. de Vos

  • Article
    | Open Access

    Wolbachia bacteria live within the cells of many insect species, manipulating their hosts’ reproduction and immune responses. Here, the authors show that these microbes also infect wild populations of malaria-spreading Anopheles mosquitoes, supporting a potential use of Wolbachiato limit malaria transmission.

    • Francesco Baldini
    • , Nicola Segata
    •  & Flaminia Catteruccia

  • Article |

    Little is known about extracellular electron uptake by microbes. Here Bose et al. show that the anoxygenic photoautotroph Rhodopseudomonas palustrisTIE-1 accepts electrons from a poised electrode, which can be uncoupled from photosynthesis, and the pioABC system has a role in this uptake.

    • A. Bose
    • , E.J. Gardel
    •  & P.R. Girguis

  • Article |

    Microbial community function depends on metabolic interdependencies between individual species, some of which include electron transfer. Nagarajan et al. use genomic, transcriptomic and modelling approaches to describe the mechanisms supporting the syntrophic relationship between Geobacter metallireducens and Geobacter sulfurreducens.

    • Harish Nagarajan
    • , Mallory Embree
    •  & Karsten Zengler

  • Article |

    Persistence of cooperation requires limited spread of defectors, but it is unclear how evolutionary history affects the spread of these individuals. Here, Jousset et al.show that microbial cooperators can only inhibit defectors that are closely related to them, suggesting that evolutionary history can predict the stability of cooperation.

    • Alexandre Jousset
    • , Nico Eisenhauer
    •  & Stefan Scheu

  • Article |

    In microbial biogeography, little is known about processes involved in soil bacterial diversity turnover. By conducting a wide-scale investigation, this study shows that dispersal limitation and environmental selection of bacteria are not mutually exclusive, highlighting the importance of landscape diversity.

    • L. Ranjard
    • , S. Dequiedt
    •  & P. Lemanceau

  • Article |

    Biological invasion varies under different environmental stressors. Here, using a fully controlled system of bacterial communities, De Roy et al. find that community evenness affects the level of invasion, and that the community’s response depends on specific environmental conditions as well as the community evenness.

    • Karen De Roy
    • , Massimo Marzorati
    •  & Nico Boon

  • Article |

    Natural populations are complex systems where interactions can lead to chaotic dynamics. This study tests how cyclic and chaotic microbial predator–prey communities synchronize, showing different phase-locking responses for cyclic and chaotic systems.

    • Lutz Becks
    •  & Hartmut Arndt

  • Article |

    The functioning of bacterial communities is affected by selection, but the role of predation by single or multiple predators is unclear. In a study of 465 bacterial microcosms, Saleem et al.find that multiple predation causes positive bacterial diversity effects due to increased evenness among bacterial species.

    • Muhammad Saleem
    • , Ingo Fetzer
    •  & Antonis Chatzinotas

  • Article |

    Large-scale sequencing techniques have helped to understand the genetic diversity of little-known microbial communities. These authors demonstrate a cheaper alternative to direct sequencing—the construction of virtual metagenomes using gel electrophoresis and related genome sequences.

    • Shujiro Okuda
    • , Yuki Tsuchiya
    •  & Hisao Morisaki

  • Article |

    Genome-scale metabolic models for bacterial species allow a systematic study of inter-species interactions. Here, competitive and cooperative potential is predicted between 6,903 pairs of species, to explore the role of these interactions in shaping coexistence patterns in natural communities.

    • Shiri Freilich
    • , Raphy Zarecki
    •  & Eytan Ruppin

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