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    Phyllosphere microbial communities of a salt-excreting desert tree : geographical location determines population structure

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    Finkel et al AEM MBL WHOI.pdf (841.7Kb)
    Date
    2011-09
    Author
    Finkel, Omri M.  Concept link
    Burch, Adrien Y.  Concept link
    Lindow, Steven E.  Concept link
    Post, Anton F.  Concept link
    Belkin, Shimshon  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/4946
    As published
    https://doi.org/10.1128/AEM.05565-11
    Abstract
    The leaf surfaces of Tamarix, a salt secreting desert tree, harbor a diverse community of microbial epiphytes. This ecosystem presents a unique set of ecological characteristics and imposes a set of extreme stress conditions. The composition of the microbial community along ecological gradients was studied from analyses of microbial richness and diversity in the phyllosphere of three Tamarix species in the Mediterranean and Dead Sea regions in Israel, and in two locations in the USA. Over 200,000 sequences of the 16S-V6 and 18S-V9 hypervariable regions revealed a diverse community, with 788 bacterial and 64 eukaryotic genera, but only one archaeal genus. Both geographic location and tree species were determinants of microbial community structures, with the former being more dominant. Tree leaves of all three species in the Mediterranean region were dominated by Halomonas and Halobacteria, whereas trees from the Dead Sea area were dominated by Actinomycetales and Bacillales. Our findings demonstrate that microbial phyllosphere communities on different Tamarix species are highly similar in the same locale, whereas trees of the same species that grow in different climatic regions host distinct microbial communities.
    Description
    Author Posting. © The Author(s), 2011. This is the author's version of the work. It is posted here by permission of American Society for Microbiology for personal use, not for redistribution. The definitive version was published in Applied and Environmental Microbiology 77 (2011): 7647-7655, doi:10.1128/AEM.05565-11.
    Collections
    • Josephine Bay Paul Center in Comparative Molecular Biology and Evolution
    Suggested Citation
    Preprint: Finkel, Omri M., Burch, Adrien Y., Lindow, Steven E., Post, Anton F., Belkin, Shimshon, "Phyllosphere microbial communities of a salt-excreting desert tree : geographical location determines population structure", 2011-09, https://doi.org/10.1128/AEM.05565-11, https://hdl.handle.net/1912/4946
     
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