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Complete Genome Sequence of a Quorum-Sensing Bacterium, Oceanicola sp. Strain D3, Isolated from a Microplastic Surface in Coastal Water of Qingdao, China
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This paper reports the complete genome sequence of a quorum-sensing bacterium, providing genetic information relevant to understanding microbial communication and potential interactions with plastic surfaces in the environment. Bacteria that colonize plastic debris may play roles in plastic degradation or toxin transfer.
Oceanicola sp. strain D3 was isolated from the plastisphere of polyvinyl chloride (PVC) in coastal water of Qingdao, China. Here, we present the complete genome sequence of strain D3, which consists of a chromosome of 3,926,685 bp with a G+C content of 64.49% and 4,964 coding DNA sequences. This is the first report of a quorum-sensing (QS) system in an Oceanicola sp. strain.
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Researchers collected microplastics from the ocean and characterised the quorum-sensing bacteria living in their biofilms — microbes that communicate chemically to coordinate group behaviours like biofilm formation and antibiotic production. Eight different quorum-sensing bacterial strains were isolated from polypropylene and PVC microplastics, and their signalling molecules (AHLs) were profiled. The findings show that microplastics act as rafts dispersing complex microbial communities, including potentially harmful antibiotic-producing and biofilm-forming bacteria, across the global ocean.
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Whole-genome sequencing of microbial biofilms on four types of marine microplastics revealed that plastic surfaces harbor distinct microbial communities with unique functional potential, including enrichment of Vibrio species with pathogenic and plastic-degrading capabilities.
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Researchers characterized distinct bacterial communities colonizing plastic debris in coastal waters of Southern California through 16S rRNA sequencing. The study examined early-stage colonization of plastic surfaces, finding plastic-associated communities differed from surrounding seawater bacteria.
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Researchers compared microbial communities living on microplastics collected from the North Atlantic and Great Pacific Garbage Patches, finding distinct plastisphere communities shaped by ocean region and plastic type. Understanding which microbes thrive on ocean plastic helps assess the risk of harmful or antibiotic-resistant bacteria spreading on plastic debris.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.