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    Stone-dwelling actinobacteria Blastococcus saxobsidens, Modestobacter marinus and Geodermatophilus obscurus proteogenomes

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    Type
    Article
    Authors
    Sghaier, Haïtham
    Hezbri, Karima cc
    Ghodhbane-Gtari, Faten
    Pujic, Petar
    Sen, Arnab
    Daffonchio, Daniele cc
    Boudabous, Abdellatif
    Tisa, Louis S
    Klenk, Hans-Peter
    Armengaud, Jean
    Normand, Philippe
    Gtari, Maher cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Bioscience Program
    Date
    2015-06-30
    Online Publication Date
    2015-06-30
    Print Publication Date
    2016-01
    Permanent link to this record
    http://hdl.handle.net/10754/577333
    
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    Abstract
    The Geodermatophilaceae are unique model systems to study the ability to thrive on or within stones and their proteogenomes (referring to the whole protein arsenal encoded by the genome) could provide important insight into their adaptation mechanisms. Here we report the detailed comparative genome analysis of Blastococcus saxobsidens (Bs), Modestobacter marinus (Mm) and Geodermatophilus obscurus (Go) isolated respectively from the interior and the surface of calcarenite stones and from desert sandy soils. The genome-scale analysis of Bs, Mm and Go illustrates how adaptation to these niches can be achieved through various strategies including ‘molecular tinkering/opportunism’ as shown by the high proportion of lost, duplicated or horizontally transferred genes and ORFans. Using high-throughput discovery proteomics, the three proteomes under unstressed conditions were analyzed, highlighting the most abundant biomarkers and the main protein factors. Proteomic data corroborated previously demonstrated stone-related ecological distribution. For instance, these data showed starvation-inducible, biofilm-related and DNA-protection proteins as signatures of the microbes associated with the interior, surface and outside of stones, respectively.
    Citation
    Stone-dwelling actinobacteria Blastococcus saxobsidens, Modestobacter marinus and Geodermatophilus obscurus proteogenomes 2015 The ISME Journal
    Publisher
    Springer Nature
    Journal
    The ISME Journal
    DOI
    10.1038/ismej.2015.108
    Additional Links
    http://www.nature.com/doifinder/10.1038/ismej.2015.108
    ae974a485f413a2113503eed53cd6c53
    10.1038/ismej.2015.108
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Bioscience Program

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