Facilitation in the soil microbiome does not necessarily lead to niche expansion.

Facilitation in the soil microbiome does not necessarily lead to niche expansion.
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土壤微生物组的促进并不一定会导致生态位扩张

DOI:
10.1186/s40793-021-00373-2
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发表时间:
2021-02-15
影响因子:
7.9
通讯作者:
Kuramae EE
Kuramae EE
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Zhou X;Leite MFA;Zhang Z;Tian L;Chang J;Ma L;Li X;van Veen JA;Tian C;Kuramae EE

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土壤微生物组是土壤生态系统功能的驱动力,土壤微生物功能与微生物与土壤环境的相互作用直接相关。然而,在土壤微生物组的上下文相关的相互作用仍然在很大程度上unknow.ResultsUsing潜变量模型(LVMs),我们解开生物和非生物的相互作用,土壤细菌,真菌和环境因素使用青藏高原土壤生态系统作为一个模型。我们的研究结果表明,土壤细菌和真菌不仅相互作用,但也从竞争转变为促进或反之亦然,这取决于环境的变化,也就是说,他们的相互作用的性质是context-dependent.ConclusionsOverall,海拔是环境梯度,最促进微生物之间的相互作用,但不是土壤微生物群落组成的主要驱动因素,方差分区证明。一种微生物对特定环境梯度的耐受性越大,它与其他土壤微生物相互作用的可能性就越小,这表明促进作用不一定会导致生态位扩张。
BackgroundThe soil microbiome drives soil ecosystem function, and soil microbial functionality is directly linked to interactions between microbes and the soil environment. However, the context-dependent interactions in the soil microbiome remain largely unknown.ResultsUsing latent variable models (LVMs), we disentangle the biotic and abiotic interactions of soil bacteria, fungi and environmental factors using the Qinghai-Tibetan Plateau soil ecosystem as a model. Our results show that soil bacteria and fungi not only interact with each other but also shift from competition to facilitation or vice versa depending on environmental variation; that is, the nature of their interactions is context-dependent.ConclusionsOverall, elevation is the environmental gradient that most promotes facilitative interactions among microbes but is not a major driver of soil microbial community composition, as evidenced by variance partitioning. The larger the tolerance of a microbe to a specific environmental gradient, the lesser likely it is to interact with other soil microbes, which suggests that facilitation does not necessarily lead to niche expansion.
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