A marine bacterial community capable of degrading poly(ethylene terephthalate) and polyethylene

Gao, Rongrong; Sun, Chaomin

doi:10.1016/j.jhazmat.2021.125928

Cited by 164 publications

(72 citation statements)

References 59 publications

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“…PET, as a polyester, is more resistant to biodegradation due to its ester bond group compared to other polymers. Several new studies on PET biodegradation by microbes, i.e., bacteria and their enzyme systems have been reported [2,[56][57][58]. A plethora of literature is available on the bacterial enzyme-assisted degradation of PET [56][57][58].…”

Section: Hazardous Additivesmentioning

confidence: 99%

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Fungal Enzymes as Catalytic Tools for Polyethylene Terephthalate (PET) Degradation

Ahmaditabatabaei

Kyazze

Iqbal

et al. 2021

JoF

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The ubiquitous persistence of plastic waste in diverse forms and different environmental matrices is one of the main challenges that modern societies are facing at present. The exponential utilization and recalcitrance of synthetic plastics, including polyethylene terephthalate (PET), results in their extensive accumulation, which is a significant threat to the ecosystem. The growing amount of plastic waste ending up in landfills and oceans is alarming due to its possible adverse effects on biota. Thus, there is an urgent need to mitigate plastic waste to tackle the environmental crisis of plastic pollution. With regards to PET, there is a plethora of literature on the transportation route, ingestion, environmental fate, amount, and the adverse ecological and human health effects. Several studies have described the deployment of various microbial enzymes with much focus on bacterial-enzyme mediated removal and remediation of PET. However, there is a lack of consolidated studies on the exploitation of fungal enzymes for PET degradation. Herein, an effort has been made to cover this literature gap by spotlighting the fungi and their unique enzymes, e.g., esterases, lipases, and cutinases. These fungal enzymes have emerged as candidates for the development of biocatalytic PET degradation processes. The first half of this review is focused on fungal biocatalysts involved in the degradation of PET. The latter half explains three main aspects: (1) catalytic mechanism of PET hydrolysis in the presence of cutinases as a model fungal enzyme, (2) limitations hindering enzymatic PET biodegradation, and (3) strategies for enhancement of enzymatic PET biodegradation.

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Section: Hazardous Additivesmentioning

confidence: 99%

“…Several new studies on PET biodegradation by microbes, i.e., bacteria and their enzyme systems have been reported [2,[56][57][58]. A plethora of literature is available on the bacterial enzyme-assisted degradation of PET [56][57][58]. However, little is published about fungal enzyme-mediated PET degradation.…”

Section: Hazardous Additivesmentioning

confidence: 99%

Fungal Enzymes as Catalytic Tools for Polyethylene Terephthalate (PET) Degradation

Ahmaditabatabaei

Kyazze

Iqbal

et al. 2021

JoF

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“…As previously explained, functional groups within a polymer (e.g., ester carbonyls and ketones) will serve as a target for the enzymatic breakdown of the polymer. In this regard, lipases and esterases have been connected to the degradation of polyesters such as PET, initially in the terrestrial environment 170,241 but now also in the marine environment (Table S3 62,63 ). Conversely to polyester degradation, the identification of enzymes related to the degradation of polyolefins has been more challenging.…”

Section: Plastic Degradationmentioning

confidence: 99%

“…Table S3: The methods used and degradation found by studies including a measurement of biodegradation. Includes references 4,11,21,23,24,30,35,43,45,52,56,59,62,63,65,68,70,72,76,81,84,[92][93][94]102,104,111,[119][120][121][122]134,139,144,149,361 .…”

Section: Supplemental Materialsmentioning

confidence: 99%

“…Marine plastics harbour microbial communities that are taxonomically 7,16 and functionally (e.g., enrichment of genes coding for nitrogen fixation 12 ; see also a freshwater study 309 ) distinct from planktonic communities, and conservative estimates reveal that marine plastic biofilms comprise approximately 1% of the total biomass in the surface microlayer of the oceans 58 . As discussed above, it is unclear whether marine microbes biodegrade and utilise the recalcitrant polymer backbones for growth, although evidence for microbial mineralisation and assimilation of some plastics exists 62,63 .…”

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confidence: 99%

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<em> </em>Current Research on Microbe-Plastic Interactions in the Marine Environment

Latva¹,

Zadjelovic²,

Wright³

2021

Preprint

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The microbial colonisers of plastics – the ‘plastisphere’ – can affect all interactions that plastics have with their surrounding environments. While only specifically characterised within the last 10 years, at the beginning of 2021 there were 140 primary research and 65 review articles that investigate at least one aspect of the plastisphere. We gathered information on the locations and methodologies used by each of the primary research articles, highlighting several aspects of plastisphere research that remain understudied: (i) the non-bacterial plastisphere constituents; (ii) the mechanisms used to degrade plastics by marine isolates or communities; (iii) the capacity for plastisphere members to be pathogenic or carry antimicrobial resistance genes; and (iv) meta-OMIC characterisations of the plastisphere. We have also summarised the topics covered by the existing plastisphere review articles, identifying areas that have received less attention to date – most of which are in line with the areas that have fewer primary research articles. Therefore, in addition to providing an overview of some fundamental topics such as biodegradation and community assembly, we discuss the importance of eukaryotes in shaping the plastisphere, potential pathogens carried by plastics and the impact of the plastisphere on plastic transport and biogeochemical cycling. Finally, we summarise the future directions suggested by the reviews that we have evaluated and suggest other key research questions.

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Marine Biodegradation of Common Plastics

Andrady

2022

Plastics and the Ocean

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A marine bacterial community capable of degrading poly(ethylene terephthalate) and polyethylene

Cited by 164 publications

References 59 publications

Fungal Enzymes as Catalytic Tools for Polyethylene Terephthalate (PET) Degradation

Fungal Enzymes as Catalytic Tools for Polyethylene Terephthalate (PET) Degradation

<em> </em>Current Research on Microbe-Plastic Interactions in the Marine Environment

Marine Biodegradation of Common Plastics

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