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Isolation and Identification of Bacteria from Microplastic-Polluted Soil from Three Geopolitical Zones in Osun State, Nigeria
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Researchers isolated and identified microplastic-degrading bacteria from plastic-polluted soils across three geopolitical zones in Osun State, Nigeria, collecting samples from six locations and using morphological and biochemical tests to identify four candidate strains -- Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliticus, and Streptococcus spp. -- with potential for enzymatic plastic degradation.
Plastic pollution has become a pressing environmental concern due to its widespread presence and persistence in terrestrial ecosystems. This study isolated and identified the microplastic-degrading bacteria from plastic-polluted soils in Osun State, Nigeria. Soil samples were collected from six locations in three zones, and their physicochemical properties were analyzed. Microbial isolation and identification were carried out using morphological and biochemical tests standards. The pH ranged from 8.2 to 8.8. and the temperature ranged from 25°C to 29.1°C. Microbiological assessments revealed high bacteria counts, with total viable bacterial counts ranging from 2.5 x 106 to 4.0 x 106 CFU/g. Four bacterial strains were isolated: Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliticus, and Streptococcus spp. The isolated bacteria can be further studied for their enzymatic activities, offering eco-friendly solutions for plastic degradation. Further research and policy development are recommended to support bioremediation efforts in Nigeria and other regions affected by plastic pollution.
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Researchers investigated microplastic contamination in waste dump soils across Minna, Nigeria, and screened indigenous soil microorganisms for plastic biodegradation potential. They found microplastics in all sampled dump sites and identified several bacterial isolates capable of degrading common plastic polymers.
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Researchers isolated and characterized microbial communities from microplastic-polluted soil, identifying bacteria capable of colonizing plastic surfaces and assessing their potential roles in plastic degradation and soil nutrient cycling.
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Researchers identified specific bacterial genera capable of degrading multiple types of plastic across different environments including landfill soil, sewage sludge, and river water. They found that certain bacteria, such as Pseudomonas and Bacillus species, consistently appeared as effective plastic degraders regardless of the environment. The study suggests that these universal plastic-degrading bacteria could be valuable candidates for developing bioremediation strategies to address plastic pollution.
Isolation, Screening and Characterization of Plastic-Degrading Bacteria From Soil for PWM
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Scientists isolated bacteria from soil near garbage sites and identified strains capable of degrading plastic materials, with scanning electron microscopy revealing physical damage — holes and cracks — to plastic surfaces after bacterial exposure within 30 days. The study contributes to the search for soil microbes that could be harnessed for biological plastic waste management. Biodegradation by indigenous soil bacteria could offer a more environmentally friendly alternative to landfilling or incineration of plastic waste.
Microorganism-Based Bioremediation Approach for Plastics and Microplastics Wastes
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