Distinct distribution patterns and functional potentials of rare and abundant microorganisms between plastisphere and soils

文献类型： 外文期刊

第一作者： Li, Yongbin

作者： Li, Yongbin;Gao, Wenlong;Gao, Wenlong;Gao, Wenlong;Gao, Wenlong;Wang, Caixia;Gao, Miao;Gao, Miao

作者机构：

关键词： Greenhouse; Plastic film; Bacteria; Fungi; Soil-borne plant pathogen; Community assembly

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）

ISSN： 0048-9697

年卷期： 2023 年 873 卷

页码：

收录情况： SCI

摘要： The increasing application of plastic film has caused the "white pollution" of farmlands in greenhouses. To date, most studies on the ecology of the plastisphere have focused on the whole microbial community, with few on the rare and abundant taxa, especially in the terrestrial ecosystems. To understand the plastisphere rare and abundant taxa of bac-terial and fungal communities, we collected residues of plastic film from plastic-covered soils in the greenhouse. The plastisphere was significantly different from surrounding soils in terms of alpha-and beta-diversities of abundant and rare taxa. Such discrepancies were greater in rare taxa than in abundant taxa. Besides, the enrichment of soil-borne plant pathogenic fungi in the plastisphere implied that plastic film residues can act as vectors for pathogen transmis-sion. In the plastisphere, the stochastic process governed the assemblies of rare taxa, while deterministic assemblies dominated that of abundant taxa. However, in surrounding soils, the stochastic process played a larger role in abun-dant taxa as compared to rare taxa. The plastisphere showed a network of less complexity, more competitive connec-tions, and more modules compared to surrounding soils, and rare taxa played greater roles than abundant taxa. There existed obvious discrepancies in the microbial functions between surrounding soils and plastisphere, including carbon, sulfur, nitrogen, and phosphorus cycling, and rare taxa contribute large proportions to the above cycling processes. Al-together, the findings advance our understanding of ecological mechanisms of abundant and rare taxa in the plastisphere in terrestrial ecosystems.

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