Lytic virus–bacteria interactions play a primary role in enhancing soil organic carbon and Total nitrogen storage in polyethylene microplastics-amended soils

IF 13.2 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-09-15 DOI:10.1016/j.cej.2025.168373

Qi Wang, Renjie Ma, Yanjie Wang, Yali Niu, Guodong Zhang, Ruigang Wang, He Guo, Qiuling Ma, Jian Zhou, Tiecheng Wang

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Abstract

Microplastics (MPs) significantly impact soil nutrient cycling. However, the effects of MPs on soil organic carbon (SOC) and total nitrogen (TN) storage from a viral perspective, particularly the roles of lytic and lysogenic viruses in this process, remain unclear. This study carried out a four-month field trial to investigate the impact of polyethylene (PE) MPs on SOC and TN storage, with a focus on viral-bacterial interactions. The addition of PE MPs led to a maximum increase of 93.94 % in SOC and 75.58 % in TN storage compared to the control (CK). PE MPs significantly reduced soil bulk density (BD), increased soil water content (WC) and saturated water capacity (SWC), and enhanced sucrase and urease activity. PE MPs significantly enhanced lysogenic phage abundance and altered the structure of soil virus and bacterial communities. Partial least squares path modeling (PLS-PM) indicates that the interaction between lytic viruses and bacteria in key ecological network modules plays a primary role in enhancing SOC and TN storage. These results suggested that the increase in SOC and TN storage was strongly influenced by lytic virus-bacterial interactions, rather than soil physical/chmical properties and enzyme activities, under MPs addition, highlighting the critical role of virus-bacteria interactions in shaping MP-driven soil carbon and nitrogen cycling dynamics.

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溶解病毒-细菌相互作用在提高聚乙烯微塑料改性土壤有机碳和总氮储量中起主要作用

微塑料显著影响土壤养分循环。然而，从病毒的角度来看，MPs对土壤有机碳（SOC）和总氮（TN）储量的影响，特别是裂解病毒和溶原病毒在这一过程中的作用尚不清楚。本研究进行了为期4个月的田间试验，研究聚乙烯（PE） MPs对有机碳和全氮储存的影响，重点研究了病毒与细菌的相互作用。与对照（CK）相比，添加PE MPs可使土壤有机碳（SOC）和全氮（TN）储量分别提高93.94 %和75.58 %。PE MPs显著降低了土壤容重（BD），提高了土壤含水量（WC）和饱和水容量（SWC），提高了蔗糖酶和脲酶活性。PE MPs显著提高了溶原噬菌体丰度，改变了土壤病毒和细菌群落结构。偏最小二乘路径模型（PLS-PM）表明，关键生态网络模块中溶解病毒与细菌的相互作用在提高土壤有机碳和全氮储量中起主要作用。这些结果表明，在添加多聚多糖的情况下，土壤有机碳和全氮储量的增加受到溶解病毒-细菌相互作用的强烈影响，而不是土壤物理/化学性质和酶活性，突出了病毒-细菌相互作用在形成多聚多糖驱动的土壤碳氮循环动力学中的关键作用。

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.