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  • Phosphorus mediates soil prokaryote distribution pattern along a small-scale elevation gradient in Noijin Kangsang Peak, Tibetan Plateau

    Author(s)
    Zhang, Biao
    Xue, Kai
    Zhou, Shutong
    Che, Rongxiao
    Du, Jianqing
    Tang, Li
    Pang, Zhe
    Wang, Fang
    Wang, Di
    Cui, Xiaoyong
    Hao, Yanbin
    Wang, Yanfen
    Griffith University Author(s)
    Wang, Fang
    Tang, Li
    Year published
    2019
    Metadata
    Show full item record
    Abstract
    Environmental factors that are important in shaping microbe community structure are less explored along elevation in the alpine grassland ecosystem of Tibet Plateau, which is generally phosphorus limited. Here, we examined soil prokaryote communities at three elevations to explore soil prokaryote community distribution and mediation factors in Noijin Kangsang Peak, Tibetan Plateau. Results showed prokaryote community compositions differed significantly by elevations. Topsoil or subsoil prokaryote richness and Shannon diversity were significantly lower at the middle than other elevations, while significantly higher aboveground ...
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    Environmental factors that are important in shaping microbe community structure are less explored along elevation in the alpine grassland ecosystem of Tibet Plateau, which is generally phosphorus limited. Here, we examined soil prokaryote communities at three elevations to explore soil prokaryote community distribution and mediation factors in Noijin Kangsang Peak, Tibetan Plateau. Results showed prokaryote community compositions differed significantly by elevations. Topsoil or subsoil prokaryote richness and Shannon diversity were significantly lower at the middle than other elevations, while significantly higher aboveground biomass (AGB) and available P (AP) were found at the middle elevation. The importance of P for both soil layers was discovered by variation partitioning analysis based on redundancy analysis, finding that soil AP and total phosphorus, interacted with pH, explained 43% the variance in topsoil prokaryote community compositions, while soil AP, as well as AGB, explained 44% in subsoil. Consistently, structural equation model also revealed that AP was a mediating factor for prokaryote community diversity. Other than plant beta diversity, soil prokaryote beta diversity positively correlated with AP difference significantly. Taken together, the distribution patterns of soil prokaryote community were distinct along elevations even in a small scale in Noijin Kangsang Peak and was likely mediated predominantly by soil AP in both topsoil and subsoil.
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    Journal Title
    FEMS Microbiology Ecology
    Volume
    95
    Issue
    6
    DOI
    https://doi.org/10.1093/femsec/fiz076
    Subject
    Environmental sciences
    Biological sciences
    Biomedical and clinical sciences
    Science & Technology
    Life Sciences & Biomedicine
    Microbiology
    alpine grassland
    small scale
    Publication URI
    http://hdl.handle.net/10072/387812
    Collection
    • Journal articles

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