Application of biodegradable seedling trays in paddy fields: Impacts on the microbial community

Meng, Ke; Ren, Wenjie; Teng, Ying; Wang, Beibei; Han, Yujuan; Christie, Peter; Luo, Yongming

doi:10.1016/j.scitotenv.2018.11.438

Cited by 29 publications

(6 citation statements)

References 37 publications

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“…For instance, microplastics in "food chain" and "sediments" and "microbial community" were less studied (Figure 2b) [74,75]. Another example was "sludge" and "sewage sludge", which were closely related to microplastics in the "agroecosystem" (Figure 2b) [76]. Figure 2b also reveals that microplastics may associate or interact with other pollutants such as heavy metals and antibiotics [77][78][79].…”

Section: Co-occurrence Analysis Of Abstractmentioning

confidence: 99%

Microplastics in Terrestrial Ecosystems: A Scientometric Analysis

Bristow

Filipović

et al. 2020

Sustainability

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Microplastics, as an emerging contaminant, have been shown to threaten the sustainability of ecosystems, and there is also concern about human exposure, as microplastic particles tend to bioaccumulate and biomagnify through the food chain. While microplastics in marine environments have been extensively studied, research on microplastics in terrestrial ecosystems is just starting to gain momentum. In this paper, we used scientometric analysis to understand the current status of microplastic research in terrestrial systems. The global scientific literature on microplastics in terrestrial ecosystems, based on data from the Web of Science between 1986 and 2020, was explored with the VOSviewer scientometric software. Co-occurrence visualization maps and citation analysis were used to identify the relationship among keywords, authors, organizations, countries, and journals focusing on the issues of terrestrial microplastics. The results show that research on microplastics in terrestrial systems just started in the past few years but is increasing rapidly. Science of the Total Environment ranks first among the journals publishing papers on terrestrial microplastics. In addition, we also highlighted the desire to establish standards/protocols for extracting and quantifying microplastics in soils. Future studies are recommended to fill the knowledge gaps on the abundance, distribution, ecological and economic effects, and toxicity of microplastics.

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Section: Co-occurrence Analysis Of Abstractmentioning

confidence: 99%

Microplastics in Terrestrial Ecosystems: A Scientometric Analysis

Bristow

Filipović

et al. 2020

Sustainability

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“…chinensis that suggested PBAT suitable for agricultural applications (Muroi et al 2016). The effects of a biodegradable seedling tray (BST), a blend of PLA, PBAT and starch on the microbial community in rice paddy fields were studied, no harmful effect of their degradation products was observed on soil quality (Meng et al 2019). Soil microbial population is very sensitive to the environmental changes and input of any pollutants influence the microbial diversity and biomass in soil (Li et al 2016a).…”

Section: Impact Of Plastic Degradation Products On Soil Ecologymentioning

confidence: 99%

Polyester‐based biodegradable plastics: an approach towards sustainable development

Satti

Shah

2020

Lett Appl Microbiol

121

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Significance and Impact of the Study: Polyester-based BPs considered as a solution to current plastic waste problem as well as leading polymers in terms of biodegradability and sustainability has been critically discussed. The role of microorganisms and their enzymes involved in the biodegradation of these polymers and ecotoxicological impact of degradation products of BPs on soil microbial community and biogeochemical cycles has also been described. This report will provide an insight on the key research areas to bridge the gap for development of simulated systems as an effective and emerging strategy to divert the overflow of plastic in the environment as well as for the greener solution to the plastic waste management problems. AbstractNon-degradability of conventional plastics, filling of landfill sites, raising water and land pollution and rapid depletion of fossil resources have raised the environmental issues and global concerns. The current demand and production of plastics is putting immense pressure on fossil resources, consuming about 6% of the global oil and is expected to grow up to 20%. The polyester-based biodegradable plastics (BPs) are considered as a remedy to the issue of plastics waste in the environment. BPs appear to manage the overflow of plastics by providing new means of waste management system and help in securing the non-renewable resources of nature. This review comprehensively presents the environmental burdens due to conventional plastics as well as production of polyester-based BPs as an alternative to conventional commodity plastics. The diversity of micro-organisms and their enzymes that degrade various polyesterbased BPs (PLA, PCL, PHB/PHBV and PET) has also been described in detail. Moreover, the impact of plastics degradation products on soil ecology and ecosystem functions has critically been discussed. The report ends with special focus on future recommendations for the development of sustainable waste management strategies to control pollution due to plastics waste. Letters in Applied Microbiology ISSN 0266-8254Packaging, compost bags and agricultural mulching films Li et al. (2015) Letters in Applied Microbiology 70, 413--430

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“…In addition, degradable and ecofriendly plastics are used to control environmental pollution [9]. However, limited reports were published in this area, and question still arise as to whether biodegradable plastics are a positive solution for the long term in ecosystems [10].…”

Section: Introductionmentioning

confidence: 99%

The Degradability of Microplastics May Not Necessarily Equate to Environmental Friendliness: A Case Study of Cucumber Seedlings with Disturbed Photosynthesis

Zhang,

Huang,

et al. 2023

Agriculture

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In the environment, degradable plastics are decomposed into biodegradable microplastics (Bio-MPs), but there is limited study on the impact on plant growth and development. Therefore, this study aimed to investigate biodegradable polylactic acid microplastics (PLA-MPs) and nonbiodegradable polystyrene microplastics (PS-MPs) with different concentrations (0.02%, 0.2%, and 2% w/w) to explore their short-term toxic effects on cucumbers. The results of this study showed that PLA-MPs significantly (p < 0.05) reduced the aboveground and belowground biomass of cucumber seedlings compared to the control. At the level of 2% MPs, the chlorophyll content and PRI vegetation index of cucumber plants decreased significantly, anthocyanin content increased, and the photosynthetic system was disturbed. Likewise, the antioxidant defensive system of cucumber was affected after exposure to MPs stress, especially under 2% levels. The hyperspectral image is a novel technique which analyzed the chlorophyll content and absorption under MPs treatment; there was still a high correlation between chlorophyll content, anthocyanin content, and MCARI vegetation index, so a single vegetation index could be used for rapid detection of plant physiological status. Our study suggests that Bio-MPs have potential ecological toxicity that could affect the growth of cucumber seedlings through deactivation of the PSII reaction center. Therefore, biodegradable plastics do not seem to be the optimal solution, and there is an urgent need for long-term monitoring and evaluation of the biological toxicity of biodegradable MPs.

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Application of biodegradable seedling trays in paddy fields: Impacts on the microbial community

Cited by 29 publications

References 37 publications

Microplastics in Terrestrial Ecosystems: A Scientometric Analysis

Microplastics in Terrestrial Ecosystems: A Scientometric Analysis

Polyester‐based biodegradable plastics: an approach towards sustainable development

The Degradability of Microplastics May Not Necessarily Equate to Environmental Friendliness: A Case Study of Cucumber Seedlings with Disturbed Photosynthesis

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