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61,005 resultsShowing papers similar to Comparative metagenomic analysis from Sundarbans ecosystems advances our understanding of microbial communities and their functional roles
ClearFinding microbial composition and biological processes as predictive signature to access the ongoing status of mangrove preservation
Using DNA sequencing, researchers mapped the microbial communities in mangrove soils of a large Brazilian bay, comparing pristine and polluted areas near a petroleum refinery. Polluted mangroves showed increased populations of bacteria adapted to breaking down hydrocarbons, while beneficial organisms like diatoms declined. While focused on oil pollution, the findings are relevant to microplastics research because mangroves act as filters for coastal pollution, and degraded mangrove ecosystems are less effective at trapping microplastics before they reach the ocean.
16S rRNA gene amplicon-based metagenomic analysis of bacterial communities in the rhizospheres of selected mangrove species from Mida Creek and Gazi Bay, Kenya
This metagenomic study characterized rhizosphere bacterial communities of four mangrove tree species in Kenya, finding species-specific differences in microbial diversity and community structure that reflect the distinct root chemistry and sediment conditions of each mangrove host.
Emergence of specialized plastic-degrading enzymes within highly dynamic coastal oceans
Researchers conducted long-term monitoring of microplastics in the Sundarbans mangrove ecosystem and found high abundances linked to freshwater inflow patterns. Alongside microplastics, they identified nearly 750 plastic-degrading enzyme sequences in the microbial community, suggesting that this dynamic coastal ecosystem harbors specialized plastic-degrading microbiomes.
Exploring untapped bacterial communities and potential polypropylene-degrading enzymes from mangrove sediment through metagenomics analysis
Researchers used metagenomics analysis to explore bacterial communities in mangrove sediments that may be capable of breaking down polypropylene plastic. The study compared microbial communities exposed to virgin and chemically pretreated polypropylene over several months. Evidence indicates that certain bacterial taxa in mangrove environments possess enzymes with potential polypropylene-degrading activity, suggesting possible biological pathways for plastic waste remediation.
Diversity, ecology and biotechnological potential of mangrove sediment microbiomes in Malaysia
This review examines the diversity, ecology, and biotechnological potential of mangrove sediment microbiomes in Malaysia, highlighting taxa including Firmicutes, Proteobacteria, and Asgardarchaeota that contribute to carbon sequestration, nutrient cycling, and pollutant degradation in these underexplored Southeast Asian ecosystems.
Microplastic characterization and factors influencing its abundance in coastal wetlands: insights from the world’s largest mangrove ecosystem, Sundarbans
Researchers surveyed microplastic pollution in the Sundarbans, the world's largest mangrove ecosystem, examining both water and sediment samples from 20 sites. They found microplastics at every location, with polystyrene being the most abundant polymer and fragments the most common shape. The study identified proximity to port activity and organic carbon levels as key factors influencing microplastic distribution, underscoring the vulnerability of this critical ecosystem.
Baja California Sur mangrove deep peat microbial communities cycle nitrogen but do not affect old carbon pool
Researchers examined how microbial communities in deep mangrove peat cycle nitrogen without significantly decomposing the ancient carbon stored there, which helps mangroves remain long-term carbon sinks. Microbial community composition changed with peat age but nitrogen cycling activity was maintained. These findings support the view that protecting mangroves is important for climate change mitigation through carbon sequestration.
A review on microplastic pollution in the mangrove wetlands and microbial strategies for its remediation
Researchers reviewed the growing problem of microplastic pollution in mangrove wetland ecosystems and its effects on the biological communities that depend on these habitats. They found that microplastic exposure can substantially alter the microbial communities critical to nutrient cycling in mangrove environments. The review also explores microbial bioremediation strategies as a sustainable approach to addressing plastic pollution in these threatened coastal ecosystems.
Unveiling the impact of anthropogenic wastes on greenhouse gas emissions from the enigmatic mangroves of Indian Sundarban
Researchers developed a dynamic model to simulate greenhouse gas emissions (CO2, CH4, N2O) from Indian Sundarban mangroves under the influence of anthropogenic waste inputs including heavy metals and microplastics. Both heavy metals and microplastics were identified as significant drivers of elevated GHG emissions from mangrove soils, with CO2 being most sensitive to microplastic impact on microbial respiration.
A comprehensive approach to evaluate microplastic biodegradation potential of mangrove rhizobacteria
Rhizobacteria isolated from three mangrove species in India were screened for plastic-degrading enzymes and combined into a consortium, demonstrating collective microplastic degradation potential with potential for environmental bioremediation.
Effects of Microplastics on Microbial Community in Zhanjiang Mangrove Sediments
Researchers found that microplastics in mangrove sediments from Zhanjiang, China, altered the diversity and composition of microbial communities and may affect nitrogen cycling processes such as nitrification.
Bioprospecting Evidence of Polyethylene Degrading Bacteria in the Mojo Pemalang Mangrove Rehabilitation Areas
Researchers conducted bioprospecting in the Mojo Pemalang mangrove rehabilitation areas of Indonesia, identifying bacteria with the capacity to degrade polyethylene microplastics that accumulate in mangrove sediments and inhibit ecosystem recovery. The study provided evidence that PE-degrading bacterial communities are present in these environments, suggesting natural attenuation potential for plastic pollution in mangroves.
Bacterial Diversity in Estuarine Sediments in Brazilian Coastal: a Focus in Bacterial Resistance
This paper is not about microplastics; it characterizes bacterial diversity and antibiotic resistance genes in estuarine sediments from Brazilian mangroves, examining how human effluents shape microbial communities.
Metagenomic profiling of diversified marine microbiome across microplastic-contaminated niches of Bay of Bengal, India
Researchers conducted the first shotgun metagenomic analysis of microplastic-contaminated marine water and sediment samples from the Bay of Bengal coast in India. The study revealed diverse microbial communities colonizing microplastic surfaces that differ from surrounding environments, suggesting that microplastic pollution creates distinct microbial niches that may influence marine biogeochemical cycles.
Isolation and Identification of Four Strains of Bacteria with Potential to Biodegrade Polyethylene and Polypropylene from Mangrove
Researchers screened mangrove sediment and surface water bacteria for the ability to biodegrade polyethylene and polypropylene microplastics, successfully isolating four candidate strains. The identified bacteria showed measurable plastic degradation activity, highlighting mangrove ecosystems as a source of novel plastic-degrading microorganisms.
Metagenome analysis of a soil and marine environment
This metagenomics thesis analyzed microbial communities on marine microplastics and in plant root zones, finding that the biofilm on plastic particles includes bacteria that may be capable of plastic degradation. Identifying the composition and function of these microbial communities could help in the discovery of plastic-degrading microorganisms.
Colonization characteristics and dynamic transition of archaea communities on polyethylene and polypropylene microplastics in the sediments of mangrove ecosystems
Researchers found that microplastics in mangrove sediments host distinct communities of archaea (ancient microorganisms) that differ from those in surrounding sediments, with some species linked to increased methane production. The microbial communities on microplastic surfaces shifted over time and showed increased potential for methane emissions and changes in nitrogen cycling. This suggests that microplastic pollution in coastal wetlands could amplify greenhouse gas production and disrupt nutrient cycles that support these critical ecosystems.
Screening of Bacillus strains isolated from mangrove ecosystems in Peninsular Malaysia for microplastic degradation
Researchers screened Bacillus strains isolated from mangrove ecosystems in Malaysia for plastic-degrading ability, identifying several strains with activity against synthetic polymers and highlighting mangrove microbiomes as a source of plastic-degrading bacteria.
Peer Review #2 of "Large-scale differences in diversity and functional adaptations of prokaryotic communities from conserved and anthropogenically impacted mangrove sediments in a tropical estuary (v0.2)"
This is a peer review comment on a study examining microbial communities in mangrove sediments affected by human activities. It is a peer review document, not a primary research paper, and is not directly focused on microplastics.
Novel bacterial lineages assembled from wastewater-impacted river metagenomes unveil ecosystem functions and risk of antibiotic resistance spread in the community
Researchers assembled novel bacterial lineages from metagenomes of wastewater-impacted river sediments, identifying previously undescribed microbial taxa with metabolic capabilities for plastic degradation and emerging contaminant breakdown.
Diversity of Indigenous Bacteria from Mangrove Sediments in the Waters of Ambon Bay, Maluku
Researchers compared culture-based and culture-independent methods to characterise indigenous bacterial diversity in polluted versus natural mangrove sediments in Ambon Bay, Maluku, Indonesia, while also assessing physicochemical influences on community composition. They identified 33 isolates including Acinetobacter haemolyticus and Exiguobacterium acetylicum as dominant species across both habitat types.
Microplastic pollution threatens mangrove carbon sequestration capacity
Researchers found that microplastic pollution in mangrove soils is linked to increased methane production potential by favoring methane-producing archaea over methane-consuming bacteria. A nationwide survey of Chinese mangroves revealed higher microplastic concentrations in surface soils, with stronger associations with methane-cycling microorganisms at shallow depths. The findings suggest that plastic pollution could undermine the carbon sequestration capacity of these critical coastal ecosystems, potentially turning them from carbon sinks into greenhouse gas sources.
Engineering the mangrove soil microbiome for selection of polyethylene terephthalate-transforming bacterial consortia.
Researchers engineered enrichment cultures from mangrove soil to select bacterial consortia capable of transforming polyethylene terephthalate (PET), finding via metagenome-assembled genomes that PET catabolism was distributed across multiple taxa harbouring putative novel PET-active hydrolases. They also described a novel species, Mangrovimarina plasticivorans, as a key consortium member containing genes for PET monomer metabolism.
Is the Sundarbans of Bangladesh in a State of Pollution?
This comprehensive review of pollution sources in the Sundarbans mangrove ecosystem (Bangladesh) covers industrial waste, heavy metals, agrochemicals, oil spills, and plastic debris, finding that air and water quality are currently within acceptable ranges but warning that rapid land-use change nearby poses growing risks. While plastics from urban areas are mentioned, the study is a broad ecosystem health review rather than a focused microplastic study.