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Open Access Article
1 - New Surface Marine Microplastics for Colonization, Biofilm Formation and Biodegradation
Nahid Masoumi Seyed Reza Hosseini Doust Morteza Azizollahi Maryam MianabadiWe have known that microplastics (MPs) in the ocean are carriers of microbial-dominated assemblages and are rapidly colonized by microbes when released into the ocean. However, the role of microbial interactions with microplastics in marine ecosystems has been investiga MoreWe have known that microplastics (MPs) in the ocean are carriers of microbial-dominated assemblages and are rapidly colonized by microbes when released into the ocean. However, the role of microbial interactions with microplastics in marine ecosystems has been investigated in detail recently. The presence of microplastics in the marine environment has been raising global attention. Microparticles transport biofilm communities that are distinct from the surrounding environment. Although plastic-colonizing microorganisms are important for the fate of MPs in different ecosystems their influence on the fate of microplastics is largely unknown. In this review, we focused on the establishment of plastic-specific biofilms (plastisphere); the enrichment of pathogenic bacteria coupled to a vector function of microplastics; and the microbial degradation of microplastics in the marine environment. In addition, providing a better understanding of plastisphere and biofilm expansion in marine environments, and discusses plastic biodegradation. Also, the identification of potentially pathogenic in the plastisphere is considered. Manuscript profile -
Open Access Article
2 - The Effects of Microplastic Pollution on Aquatic Microorganisms: A review of the sources, fate, and effects
Morteza Azizollahi Aliabadi Seyed Reza Hosseini Doust Maryam MiyanabadiMicroplastics provide an extensive surface for microbial colonization in aquatic ecosystems. The formation of microorganism-microplastic complexes, such as biofilms, maximizes the degradation of organic matter and horizontal gene transfer. microplastic affects the struc MoreMicroplastics provide an extensive surface for microbial colonization in aquatic ecosystems. The formation of microorganism-microplastic complexes, such as biofilms, maximizes the degradation of organic matter and horizontal gene transfer. microplastic affects the structure and function of microbial communities. Dispersal of microplastic is concomitant with that of their associated microorganisms and their mobile genetic elements, including antibiotic resistance genes, islands of pathogenicity, and diverse metabolic pathways. The presence of microplastics in the marine environment poses a great threat to the entire ecosystem and has received much attention lately as the presence has greatly impacted oceans, lakes, seas, rivers, and even the Polar Regions. Also, Coastal and marine areas are constantly under continuous and increasing pressure from the activities of humans. Microorganisms play essential roles in the ecological fate of microplastic pollution, potentially yielding positive and negative effects. This study provides a holistic view of ongoing microplastics and related microbial research, which may be useful for future microplastic biodegradation studies. Manuscript profile -
Open Access Article
3 - Luteolin Co-treatment abates Polystyrene Microplastics (PS-MPs) Induced Spermatotoxicity and Dysgonadogenesis in Rats Via up-regulation of Gonadotropin, Enhanced Spermatogenesis, Downregulation of Caspases, and Oxido-inflammation
Oyovwi Mega Obukohwo Ohwin Peggy EjiroPolystyrene microplastics (PS-MPs) pose a significant scientific concern due to their chemical makeup. Luteolin (LUT), a phytochemical-biological substance with anti-oxidative and anti-inflammatory properties, was tested against polystyrene microplastics (PS-MPs)-induce MorePolystyrene microplastics (PS-MPs) pose a significant scientific concern due to their chemical makeup. Luteolin (LUT), a phytochemical-biological substance with anti-oxidative and anti-inflammatory properties, was tested against polystyrene microplastics (PS-MPs)-induced reproductive toxicity in male Wistar rats. The rats were randomly assigned to 4 groups and treated as follows: Group I received 0.01 mL kg-1 of DMSO alone, Group II received 100 mg kg-1 of LUT dissolved in DMSO, Group III received 0.01 mg kg-1 of PS-MPs, and Group IV received 0.01 mg kg-1 of PS-MPs and 100 mg kg-1 of LUT. PS-MPs alone dramatically increased sperm morphological defects, xanthine oxidase, and lipid peroxidation while decreasing testicular enzymes, luteinizing hormone (LH), follicle-stimulating hormone (FSH), testosterone, antioxidants, and interleukin-10 (IL-10). The study demonstrates that PS-MPs can alter male rat testicular function and androgenicity. However, as a result of LUT co-treatment, sperm count, motility, and viability were increased whereas MDA and XO, IL-1β and TNF-α, and caspase-3 activities in the testis were reduced. Supplementing with LUT might act as a cytoprotective agent to lessen the spermatotoxicity and dysgonadogenesis brought on by PS-MPs. Manuscript profile -
Open Access Article
4 - Source of Microplastic Pollution Within Human Stool in the Surabaya River Basin Area
Edza Wikurendra Sofi Aini Imre Nagy Globila Nurika Novera Herdiani Shamsul Shamsudin -
Open Access Article
5 - The Study of Histology and Histometry Changes in the Stomach and Intestine of Male Mice Consuming Nano-Styrene Microplastics
Mohammad Reza Ghafari Manesh Esmail Fattahi Fereshteh Mirmohammadrezaei Sima MashayekhToday, microplastics are among the most important environmental pollutants that have attracted the attention of scientists. These plastic particles enter the food chain by being swallowed by animals and cause serious damage to humans and animals. The purpose of this res MoreToday, microplastics are among the most important environmental pollutants that have attracted the attention of scientists. These plastic particles enter the food chain by being swallowed by animals and cause serious damage to humans and animals. The purpose of this research is to investigate the effect of polystyrene microplastics on the digestive system of mammals. The rats were divided into 3 groups of 6; the sham group received 200 microliters of distilled water once a day for 30 days. The first group received 200 microliters of nano-styrene once a day with a dose of 0.1mg⁄kg for 30 days. The second group received 200 microliters of nano-styrene once a day. He received a dose of 0.5 mg⁄kg for 30 days. The day after the last gavage, the animal was anesthetized with chloroform, and the intestinal and stomach samples were stained for histological examination in 10% buffered formalin solution with hematoxylin-eosin staining method. TUKEY test was used for statistical analysis and comparison between groups. All the calculations were done using Prism software and the significance level of the tests P was considered less than 0.05. The statistical findings show a decrease in the diameter of the submucosa, the number of lining cells, and the number of epithelial cells in the experimental group 2 compared to the control group. The height of the intestinal villi and The stomach showed an increase in experimental group 2 compared to the sham group. The results of this study show that the effects of nano-styrene depend on the concentration and as the concentration increases, it will leave more destructive effects on the intestines and stomach. Manuscript profile
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