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Plastic degradation by marine bacteria information


Plastic degradation in marine bacteria describes when certain pelagic bacteria break down polymers and use them as a primary source of carbon for energy. Polymers such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET) are incredibly useful for their durability and relatively low cost of production, however it is their persistence and difficulty to be properly disposed of that is leading to pollution of the environment and disruption of natural processes. It is estimated that each year there are 9-14 million metric tons of plastic that are entering the ocean due to inefficient solutions for their disposal.[1] The biochemical pathways that allow for certain microbes to break down these polymers into less harmful byproducts has been a topic of study to develop a suitable anti-pollutant.[1]

Figure 1: Widespread plastic pollution in marine environments introduces substrates for microbes to adhere to and even use as an energy source.
  1. ^ a b Zrimec, Jan; Kokina, Mariia; Jonasson, Sara; Zorrilla, Francisco; Zelezniak, Aleksej (2021-10-26). "Plastic-Degrading Potential across the Global Microbiome Correlates with Recent Pollution Trends". mBio. 12 (5): e0215521. doi:10.1128/mbio.02155-21. ISSN 2150-7511. PMC 8546865. PMID 34700384.

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Plastic degradation by marine bacteria

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Marine plastic pollution

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Rymowicz, W. and Mirończuk, A.M. (2018) "Degradation of plastics and plastic-degrading bacteria in cold marine habitats". Applied microbiology and biotechnology...

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incredible environmental advantage. Microbial degradation is accomplished by 3 steps: colonization of the plastic surface, hydrolysis, and mineralization....

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may occur where chemosynthetic sulfur bacteria form the base of the food web. Marine ecosystems are characterized by the biological community of organisms...

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Biodegradation

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rate at which this degradation of organic compounds occurs. Factors include light, water, oxygen and temperature. The degradation rate of many organic...

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Lignin

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furans, and solubilized phenolics) inhibit the growth of bacteria. Yet, bacterial degradation can be quite extensive, especially in aquatic systems such...

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Bioplastic

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Polyethylene terephthalate

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time and/or melt temperature are too high, then thermal degradation or thermooxidative degradation will occur resulting in: discoloration reduced molecular...

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Plastisphere

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ecosystems that have evolved to live in human-made plastic environments. All plastic accumulated in marine ecosystems serves as a habitat for various types...

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Microbial consortium

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based on their ability to degrade recalcitrant materials such as lignocellulose and polyurethanes. In many cases of degradation efficiency, microbial consortia...

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Ocean

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ocean. Plastic pollution is harmful to marine life. Marine plastic pollution is a type of marine pollution by plastics, ranging in size from large original...

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Water pollution

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microplastics pollution that is not directly visible. The terms marine debris and marine plastic pollution are used in the context of pollution of oceans. Microplastics...

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Beeswax wrap

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Landfill

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Beach cleaning

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of genera that could degrade the plastics found in the garbage patch. Along with that, the bacteria were only known to degrade PE and not PP. The researchers...

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Biodegradable waste

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especially marine plastic pollution, and invasive species. The waters surrounding the Hawaiian Islands are affected by increasing waste products like marine debris...

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