Marine hydrocarbon-degrading bacteria breakdown poly(ethylene terephthalate) (PET)

Denaro, Renata; Aulenta, Federico; Crisafi, Francesca; Pippo, Francesca Di; Viggi, Carolina Cruz; Matturro, Bruna; Tomei, P.; Smedile, Francesco; Martinelli, Andrea; Lisio, Valerio Di; Venezia, Cristina; Rossetti, Simona

doi:10.1016/j.scitotenv.2020.141608

Cited by 76 publications

(42 citation statements)

References 81 publications

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“…The surfaces of microplastics were enriched with bacteria capable of degrading hydrocarbons. Similar results were obtained in a mesocosm experiment [21] that examined the role of hydrocarbon‐degrading bacteria in breaking down PET. Significant differences in biofilm biodiversity were observed, with PET surfaces attracting distinct communities of hydrocarbon‐degrading bacteria.…”

Section: Degradation Of Plastic Materials To Microplasticssupporting

confidence: 83%

From plastics to microplastics and organisms

Bajt

2021

FEBS Open Bio

129

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The amount of plastic waste and microplastics released into marine environments has increased rapidly in recent decades. The durability of plastic materials results in major problems following their release into the environment. This study provides an overview of recent findings on issues related to plastic degradation, the accumulation of microplastics in mussels and fishes, and the toxicological effects associated with the ingestion of microplastics. These findings confirm the serious problem of slowly degrading plastics (which rarely degrade fully) in natural marine environments. Microplastics have become widespread pollutants and have been detected in mussels and fish around the world. Microplastic particles, whether virgin or with adsorbed pollutants on their surfaces, pose a health problem after being ingested by marine organisms. This paper ends by highlighting the need for certain improvements in studies of these phenomena.

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Section: Degradation Of Plastic Materials To Microplasticssupporting

confidence: 83%

From plastics to microplastics and organisms

Bajt

2021

FEBS Open Bio

129

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“…This study also showed that Alcanivorax sp., Alteromonas sp., Marinobacter sp., and Oleiphilus messinensis were more abundant on any of the tested PE types compared with seawater and were particularly more abundant during the primary phase of colonization. Furthermore, consortia of marine HCB were shown to efficiently degrade PET in microcosms ( Denaro et al, 2020 ). We identified genera which contain hydrocarbon and oil degraders on all polymer types, with a minimum of 13% of total 16S rRNA gene reads.…”

Section: Discussionmentioning

confidence: 99%

Microbial Communities on Plastic Polymers in the Mediterranean Sea

et al. 2021

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Plastic particles in the ocean are typically covered with microbial biofilms, but it remains unclear whether distinct microbial communities colonize different polymer types. In this study, we analyzed microbial communities forming biofilms on floating microplastics in a bay of the island of Elba in the Mediterranean Sea. Raman spectroscopy revealed that the plastic particles mainly comprised polyethylene (PE), polypropylene (PP), and polystyrene (PS) of which polyethylene and polypropylene particles were typically brittle and featured cracks. Fluorescence in situ hybridization and imaging by high-resolution microscopy revealed dense microbial biofilms on the polymer surfaces. Amplicon sequencing of the 16S rRNA gene showed that the bacterial communities on all plastic types consisted mainly of the orders Flavobacteriales, Rhodobacterales, Cytophagales, Rickettsiales, Alteromonadales, Chitinophagales, and Oceanospirillales. We found significant differences in the biofilm community composition on PE compared with PP and PS (on OTU and order level), which shows that different microbial communities colonize specific polymer types. Furthermore, the sequencing data also revealed a higher relative abundance of archaeal sequences on PS in comparison with PE or PP. We furthermore found a high occurrence, up to 17% of all sequences, of different hydrocarbon-degrading bacteria on all investigated plastic types. However, their functioning in the plastic-associated biofilm and potential role in plastic degradation needs further assessment.

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“…The GC–MS was used to quantify the hydrocarbons produced by marine bacteria after degrading PET. The hydrocarbons were phenanthrene, tetradecane, naphthalene and diesel (Denaro et al 2020 ). Ultraviolet radiations cause fragmentation in synthetic and natural microfibres.…”

Section: Sample Collection Process and Characterization In The Environmentmentioning

confidence: 99%

Occurrence, toxicity and remediation of polyethylene terephthalate plastics. A review

et al. 2022

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Polyethylene terephthalate is a common plastic in many products such as viscose rayon for clothing, and packaging material in the food and beverage industries. Polyethylene terephthalate has beneficial properties such as light weight, high tensile strength, transparency and gas barrier. Nonetheless, there is actually increasing concern about plastic pollution and toxicity. Here we review the properties, occurrence, toxicity, remediation and analysis of polyethylene terephthalate as macroplastic, mesoplastic, microplastic and nanoplastic. Polyethylene terephthalate occurs in groundwater, drinking water, soils and sediments. Plastic uptake by humans induces diseases such as reducing migration and proliferation of human mesenchymal stem cells of bone marrow and endothelial progenitor cells. Polyethylene terephthalate can be degraded by physical, chemical and biological methods.

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Marine hydrocarbon-degrading bacteria breakdown poly(ethylene terephthalate) (PET)

Cited by 76 publications

References 81 publications

From plastics to microplastics and organisms

From plastics to microplastics and organisms

Microbial Communities on Plastic Polymers in the Mediterranean Sea

Occurrence, toxicity and remediation of polyethylene terephthalate plastics. A review

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