Phylogenetic Diversity of Microbial Communities from the Surface of Polyethylene Terephthalate Materials Exposed to Different Water Environments

Tourova, T. P.; Соколова, Д. Ш.; Назина, Т. Н.; Gruzdev, D. S.; Лаптев, А.Б.

doi:10.1134/s0026261720010154

Cited by 17 publications

(12 citation statements)

References 27 publications

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“…Polyethylene terephthalate biodegradation was investigated in Black Sea, fresh, and industrial waters with respective salinities of 18.6, 0.09–0.3, and 1.3 g/L [ 73 ]. Investigation of microbial diversity in consortia isolated from these environments revealed a universal presence of representatives of the phyla Bacteroidetes , Gammaproteobacteria , and Alphaproteobacteria , albeit in different proportions.…”

Section: Halophilic Degradersmentioning

confidence: 99%

Plastic Degradation by Extremophilic Bacteria

Atanasova

Stoitsova

Paunova-Krasteva

et al. 2021

IJMS

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Intensive exploitation, poor recycling, low repeatable use, and unusual resistance of plastics to environmental and microbiological action result in accumulation of huge waste amounts in terrestrial and marine environments, causing enormous hazard for human and animal life. In the last decades, much scientific interest has been focused on plastic biodegradation. Due to the comparatively short evolutionary period of their appearance in nature, sufficiently effective enzymes for their biodegradation are not available. Plastics are designed for use in conditions typical for human activity, and their physicochemical properties roughly change at extreme environmental parameters like low temperatures, salt, or low or high pH that are typical for the life of extremophilic microorganisms and the activity of their enzymes. This review represents a first attempt to summarize the extraordinarily limited information on biodegradation of conventional synthetic plastics by thermophilic, alkaliphilic, halophilic, and psychrophilic bacteria in natural environments and laboratory conditions. Most of the available data was reported in the last several years and concerns moderate extremophiles. Two main questions are highlighted in it: which extremophilic bacteria and their enzymes are reported to be involved in the degradation of different synthetic plastics, and what could be the impact of extremophiles in future technologies for resolving of pollution problems.

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Section: Halophilic Degradersmentioning

confidence: 99%

Plastic Degradation by Extremophilic Bacteria

Atanasova

Stoitsova

Paunova-Krasteva

et al. 2021

IJMS

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“…Recently, the Pseudomonas and Acidovorax genera members from petrochemical industrial recycling water were found to have the potential to degrade PET samples. [48] Also, it was reported that two kinds of Bacillus isolated from mangrove sediment in the Malaysian peninsular exhibited the potential to repair the environment polluted by microplastics. [49] In addition, a search algorithm that helps to identify possible PET hydrolase candidates was developed based on various databases.…”

Section: Discovery Of New Pet-degrading Microbesmentioning

confidence: 99%

“…Currently reported and predicted enzymes that degrade PET are produced by organisms in the kingdom bacteria, especially proteobacteria, the major phylum of Gram‐negative bacteria, asnd the actinobacteria phyla, which are widely distributed in a variety of natural and man‐made environments. Recently, the Pseudomonas and Acidovorax genera members from petrochemical industrial recycling water were found to have the potential to degrade PET samples [48] . Also, it was reported that two kinds of Bacillus isolated from mangrove sediment in the Malaysian peninsular exhibited the potential to repair the environment polluted by microplastics [49] .…”

Section: Perspectives and Potential Applicationsmentioning

confidence: 99%

IsPETase Is a Novel Biocatalyst for Poly(ethylene terephthalate) (PET) Hydrolysis

Kan

Luo

et al. 2021

ChemBioChem

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Poly(ethylene terephthalate) (PET) is one of the most widely used synthetic polyesters, but also a major cause of plastic pollution. Because the chemical degradation of PET would be uneconomical and rather burdensome, considerable efforts have been devoted to exploring enzymatic processes for the disposal of PET waste. Many PET-hydrolyzing enzymes have been reported in recent decades, some of which demonstrate excellent potential for industrial applications. This review sets out to summarize the state of investigation into IsPETase, a cutinase-like enzyme from Ideonella sakaiensis possessing ability to degrade crystalline PET, and to gain further insight into the structure-function relationship of IsPETase. Benefiting from the continuing identification of novel cutinase-like proteins and growing availability of the engineered IsPETase, we may anticipate future developments in this type of enzyme would generate suitable biocatalyst for industrial use.

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“…New bacterial and fungal strains capable of growth and survival on plastic polymers were isolated from the surface of plastic polymer wastes collected at six environmentally different sites. A total of Processes 2020, 8, 467 5 of 14 26 bacterial strains were identified using the 16 S rRNA eubacterial primer set (Table 1). Similarly, 18 fungal strains were identified using 18 S rRNA and the ITS sequencing of 18 S rRNA ( Table 2).…”

Section: Isolation and Identification Of Microorganismsmentioning

confidence: 99%

“…Microoganisms that are in prolonged contact with plastic wastes are adapted to these environmental conditions to maximize their degradation potential. The strategy for isolating efficient microbial degraders of plastics is often focused on microorganisms colonizing plastic wastes in soil or other plastics-polluted environments [2,25,26]. In this study, autochthonous microorganisms colonizing surfaces of plastic wastes from composting plants, landfills, and anaerobic digestion plants were used as a source of novel bacterial and fungal strains, presumably well-adapted to the biodeterioration and biodegradation of plastics.…”

Section: Introductionmentioning

confidence: 99%

Ability of Trichoderma hamatum Isolated from Plastics-Polluted Environments to Attack Petroleum-Based, Synthetic Polymer Films

et al. 2020

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Microorganisms colonizing plastic waste material collected in composting-, landfill-, and anaerobic digestion plants were isolated to obtain novel strains maximally adapted to the degradation of plastics due to long-term contact with plastic polymers. Twenty-six bacterial strains were isolated and identified by the 16 S rRNA method, and eighteen strains of yeasts and fungi using 18 S rRNA and the internal transcribed spacer ITS sequencing of the 18 S rRNA gene. In selected strains, the ability to degrade linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), polystyrene (PS), and polyvinyl chloride (PVC) was tested in aerobic liquid-medium cultures. An oxidative, two-step pretreatment of LLDPE and LDPE using γ- or UV-irradiation followed by a high-temperature treatment was carried out, and the pretreated plastics were also included in the degradation experiments. The respective weight losses after biodegradation by Trichoderma hamatum were: virgin and γ/T90-pretreated LLDPE (2.2 ± 1.2 and 3.9 ± 0.5%), virgin and UV/T60-pretreated LDPE (0.5 ± 0.4 and 1.3 ± 0.4%), and virgin PS (0.9 ± 0.4%). The Fourier transform infrared spectroscopy (FTIR) analysis showed that during the treatment of pretreated LLDPE, T. hamatum attacked low molecular weight LLDPE oligomers, reducing the functional groups (carbonyl C = O), which was paralleled by a slight increase of the molar mass of pretreated LLDPE and a decrease of the dispersity index, as demonstrated by gel permeation chromatography (GPC). Thermogravimetric analysis (TGA) highlighted the formation of functional groups on LLDPE due to polymer pretreatment that favored fungal attack at the polymer surface. The results provide insight into microbial consortia that spontaneously colonize the surface of plastics in various environments and their capability to attack plastic polymers.

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Phylogenetic Diversity of Microbial Communities from the Surface of Polyethylene Terephthalate Materials Exposed to Different Water Environments

Cited by 17 publications

References 27 publications

Plastic Degradation by Extremophilic Bacteria

Plastic Degradation by Extremophilic Bacteria

IsPETase Is a Novel Biocatalyst for Poly(ethylene terephthalate) (PET) Hydrolysis

Ability of Trichoderma hamatum Isolated from Plastics-Polluted Environments to Attack Petroleum-Based, Synthetic Polymer Films

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