Deciphering the Mechanisms Shaping the Plastisphere Microbiota in Soil

Sun, Yuanze; Shi, Jianzong; Wang, Xiang; Ding, Changfeng; Wang, Jie

doi:10.1128/msystems.00352-22

Cited by 55 publications

(29 citation statements)

References 56 publications

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“…We utilized only a limited number of soils and microplastics. The highly diverse soils and microplastics may induce great variance in observations. ,− Furthermore, the priming effect (PE), referring to the change in the decomposition rate of native SOM after fresh organic matter input, induced by microplastics was not investigated. Microplastics may exhibit a negative PE via sorbing soil DOM on particle surfaces to decrease the decomposition of native SOM or leaching easily mineralized organic carbon to induce the preferential metabolization of exogenous carbon.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Microplastics on Soil Carbon Mineralization: The Crucial Role of Oxygen Dynamics and Electron Transfer

Shi,

Wang,

Peng

et al. 2023

Environ. Sci. Technol.

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Section: Resultsmentioning

confidence: 99%

“…First, changes in the soil microbial community were not included. Previous studies indicated that microplastics could change the community compositions, , which may potentially impact the soil carbon stability. We utilized only a limited number of soils and microplastics.…”

Section: Resultsmentioning

confidence: 99%

Effects of Microplastics on Soil Carbon Mineralization: The Crucial Role of Oxygen Dynamics and Electron Transfer

Shi,

Wang,

Peng

et al. 2023

Environ. Sci. Technol.

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“…To determine whether and how different exogenous additives affect the stability of the bacterial co-occurrence network, a robustness analysis was performed to evaluate the stability of networks and their embedded members ( Yuan et al., 2021 ; Sun et al., 2022 ). Robustness refers to the stability of the structure and function of a biological system when it is disturbed by uncertain factors.…”

Section: Resultsmentioning

confidence: 99%

Effect and mechanism of the improvement of coastal silt soil by application of organic fertilizer and gravel combined with Sesbania cannabina cultivation

Sun

Ren

et al. 2022

Front. Plant Sci.

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Jiangsu Province of China has a large area of coastal silt soil (CSS) with poor permeability, high salinity, and poor nutrients, which brings great difficulties to the development and utilization of coastal zones, so that needs to be improved as a matter of urgency. In this study, river-sand, serpentine, and organic fertilizer were used as additives in CSS, and Sesbania cannabina, a salt-tolerant cash crop, was planted in these differently treated soils. Through high-throughput sequencing, analysis of soil physico-chemical properties, and detection of plant growth status, the rhizosphere bacterial diversity of S. cannabina growing in CSS under different treatments and their environmental impact factors were studied, while exploring the effect and mechanism of organic fertilizer combined with gravel as a CSS modifier. The results implied that single application of organic fertilizer could significantly increase the fertility levels of total nitrogen (TN), total organic carbon (TOC) and Avail. P in CSS; then, the application of organic fertilizer with river-sand significantly reduced salt content and alkalinity of soil; meanwhile, in the treatment of single application of organic fertilizer and application of organic fertilizer combined with river-sand, the rhizosphere of S. cannabina enriched the bacterial communities of organic matter degradation and utilization to varying degrees. The soil moisture content and indicators related to saline-alkali soil (including total salt, electrical conductivity (EC), exchangeable sodium percentage (ESP), Avail. Na and Avail. K, etc.) were further reduced significantly by the application of organic fertilizer combined with river-sand and serpentine. The method has greatly improved the growth conditions of S. cannabina and promoted the positive development of its rhizosphere bacterial community. Among them, in the treatment of organic fertilizer combined with river-sand and serpentine, a variety of plant growth-promoting rhizobacteria (PGPR, such as Sphingomonas, Ensifer, and Rhodobacter) and nitrogen-cycle-related bacteria (such as nitrate-reduction-related bacteria, nitrogen-fixing bacteria like Ensifer, and purple non-sulfur photosynthetic bacteria like Rhodobacter) were enriched in the rhizosphere of S. cannabina; moreover, the mutual association and robustness of bacterial co-occurrence networks have been significantly enhanced. The results provide a theoretical basis and reference model for the improvement of coastal saline-alkali silt soil.

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“…Microbial responses toward plastic and plastic carbon in anoxic blue carbon sediments may clarify many uncertainties related to microbial growth, extracellular polymeric substances, and carbon mineralization. Research related to the “plastisphere” community (i.e., the microbial community on plastic surfaces) in various environmental compartments, especially in surface waters and surface sediments, has advanced in recent decades. − However, information regarding microbial metabolism on plastic buried in blue carbon sediment remains insufficient (Panel ).…”

Section: How Can Plastic Carbon Affect Blue Carbon?mentioning

confidence: 99%

Plastic Paradox in Blue Carbon Ecosystems

Noman,

Adyel,

Trevathan-Tackett

et al. 2024

Environ. Sci. Technol.

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Plastics are rapidly accumulating in blue carbon ecosystems, i.e., mangrove forests, tidal marshes, and seagrass meadows. Accumulated plastic is diverted from the ocean, but the extent and nature of impacts on blue carbon ecosystem processes, including carbon sequestration, are poorly known. Here, we explore the potential positive and negative consequences of plastic accumulation in blue carbon ecosystems. We highlight the effects of plastic accumulation on organic carbon stocks and sediment biogeochemistry through microbial metabolism. The notion of beneficial plastic accumulation in blue carbon ecosystems is controversial, yet considering the alternative impacts of plastics on oceanic and aboveground environments, this may be the "lesser of evils". Using environmental life cycle impact assessment, we propose a research framework to address the potential positive and negative impacts of plastic accumulation in blue carbon ecosystems. Considering the multifaceted benefits, we prioritize expanding and managing blue carbon ecosystems, which may help with ecosystem conservation, as well as mitigating the negative effects of plastic.

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Deciphering the Mechanisms Shaping the Plastisphere Microbiota in Soil

Cited by 55 publications

References 56 publications

Effects of Microplastics on Soil Carbon Mineralization: The Crucial Role of Oxygen Dynamics and Electron Transfer

Effects of Microplastics on Soil Carbon Mineralization: The Crucial Role of Oxygen Dynamics and Electron Transfer

Effect and mechanism of the improvement of coastal silt soil by application of organic fertilizer and gravel combined with Sesbania cannabina cultivation

Plastic Paradox in Blue Carbon Ecosystems

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