1. World Register of Marine Species - Pyrene Röding, 1798 - WoRMS
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WoRMS taxon details
2. World Register of Marine Species - Pyrene ocellata (Link, 1807)
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WoRMS name details
3. Benzo[a]pyrene stress impacts adaptive strategies and ecological ...
Apr 17, 2023 · The earthworm gut virome influences the structure and function of the gut microbiome, which in turn influences worm health and ecological ...
The earthworm gut virome influences the structure and function of the gut microbiome, which in turn influences worm health and ecological functions. However, despite its ecological and soil quality implications, it remains elusive how earthworm intestinal phages respond to different environmental stress, such as soil pollution. Here we used metagenomics and metatranscriptomics to investigate interactions between the worm intestinal phages and their bacteria under different benzo[a]pyrene (BaP) concentrations. Low-level BaP (0.1 mg kg−1) stress stimulated microbial metabolism (1.74-fold to control), and enhanced the antiphage defense system (n = 75) against infection (8 phage-host pairs). Low-level BaP exposure resulted in the highest proportion of lysogenic phages (88%), and prophages expressed auxiliary metabolic genes (AMGs) associated with nutrient transformation (e.g., amino acid metabolism). In contrast, high-level BaP exposure (200 mg kg−1) disrupted microbial metabolism and suppressed the antiphage systems (n = 29), leading to the increase in phage-bacterium association (37 phage-host pairs) and conversion of lysogenic to lytic phages (lysogenic ratio declined to 43%). Despite fluctuating phage-bacterium interactions, phage-encoded AMGs related to microbial antioxidant and pollutant degradation were enriched, apparently to alleviate pollution stress. Overall, these findings expand our knowledge of complex phage-bacterium interactions in pollution-stressed worm guts, an...
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4. Bioaccumulation and metabolism of benzo[A]pyrene in three species of ...
Abstract. Polychaete worms which inhabit and ingest contaminated sediments may be exposed to a suite of sediment‐sorbed xenobiotics, including polycyclic a.
Abstract. Polychaete worms which inhabit and ingest contaminated sediments may be exposed to a suite of sediment‐sorbed xenobiotics, including polycyclic a
5. self-assembly of isomeric pyrene–cholane amphiphiles into sheets ...
Phosphodiester-linked cholane–pyrene–cholane trimers self-assemble into sheet-, tube- and worm-like nanostructures in aqueous conditions.
Phosphodiester-linked cholane–pyrene–cholane trimers self-assemble into sheet-, tube- and worm-like nanostructures in aqueous conditions. The nanotubes and worm-like assemblies exist as single- or multi-walled objects.
6. [PDF] ASSESSMENT OF THE EFFECTS OF BIOTURBATION IN ...
Pyrene loss in the upper 15 mm due to biotic processes was 170% greater than undisturbed cells due to enhanced microbial processes and/or direct worm ...
7. "Enhanced degradation of phenanthrene and benzo(a)pyrene in a ...
... pyrene present in a field-contaminated sediment was studied in microcosm experiments ... worm microcosms, while no reduction was observed in the control ...
The influence of the oligochaete Ilyodrilus templetoni on the degradation of phenanthrene and benzo(a)pyrene present in a field-contaminated sediment was studied in microcosm experiments. Results indicate an enhanced degradation of phenanthrene and benzo(a)pyrene in microcosms inhabited by I. templetoni. Total phenanthrene reduction was observed at an average of 9.78 % in worm microcosms, while no reduction was observed in the control microcosms. Benzo(a)pyrene reduction, on the other hand, was determined at 78.60 % and 30.04 % in worm and control microcosms, respectively. The lowest concentrations of these PAHs at the end of 97-day study were observed well below the surface of the sediment in worm microcosms. Mass balance analysis was done based on the possible transport routes of the sediment PAHs to possibly explain the major fate pathway for phenanthrene and benzo(a)pyrene in this study. Further, the influence of the oligochaetes on the physico-chemical characteristics (specifically, redox and porewater dissolved oxygen) and the microbial characteristics of the sediment were also assessed. Dissolved oxygen (DO) measurements indicated a limited penetration of oxygen within the 3 mm of sediment depth. Comparisons of the two sets of measurements (two months apart) indicate an increase in DO of both the worm and control microcosms. The DO increase in control microcosm was primarily due to photosynthesis on the relatively stable sediment surface. On the other hand, a larger sh...
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8. [PDF] APPENDIX R - State Water Resources Control Board
Perylene, Phenanthrene Phenanthrene, Pyrene. Pyrene,. Pyrene,. Pyrene ... GYL = Sand Worm (Glycera spp.) OYS = Oyster (Crassostrea gigas). Page 3. R-3.
9. importance of sediment versus water uptake routes
Jan 16, 2024 · pyrene analysis, and 1 worm was added to each tube. All worms burrowed within 15 min. The experimental period was 14 d, which, according to ...
10. Biodegradation of Pyrene by Using Earthworm in Soil
Nov 27, 2024 · This study aims are to investigate the mechanism and optimum pyrene degradation rate with minimum toxic by-products by using earthworms.
Pyrene, a toxic four benzene ring Polycyclic Aromatic Hydrocarbons (PAHs) that persists in the environment, is highly resistant to degradation. Therefore, this study aims are to investigate the mechanism and optimum pyrene degradation rate with minimum toxic by-products by using earthworms. The earthworms were collected randomly from soil at Universiti Teknologi Malaysia (Malaysia) as pyrene degrader to eliminate pyrene in soil. Several factor such as soil to earthworm ratio, soil moisture content, effect of soil sterilization and comparison of pyrene degradation using different experimental approaches on pyrene degradation efficiency were examined. In this study was found by using earthworms, 25% of pyrene was removed by earthworms from 200 g of soil containing 100 mg L-1 of pyrene after 14 days treatment, suggesting that wild earthworms were able to degrade the pyrene with higher efficiency in the natural soil without sterilization. However, no metabolite was detected during the pyrene removal process. The pyrene might be fully degraded or accumulated in fatty tissue in earthworms. Nevertheless, in the treatment using wild earthworms are suitable to be used as pyrene degrader.
11. Joint toxic effects of cadmium and pyrene on reproduction and ... - RIVM
Empirical data on the joint toxicity of pyrene and cadmium for the earthworm Eisenia andrei are presented. The joint toxic effects were studied in a ...
Onderzoeksrapport RIVM rapport 607506001
12. Pyrene jousseaumei Drivas & M.Jay, 1997 - GBIF
On a collection of Columbellidae from the Red Sea. Apex. 12: 27-30. rightsHolder, WoRMS Editorial Board. bibliographicCitation, MolluscaBase eds. (2024).
Global Biodiversity Information Facility. Free and Open Access to Biodiversity Data.
13. Lumbriculus Toxicity
Radiolabeled pyrene-4,5,9,10-[14]C. Test design. Architomic reproduction mode of L. variegatus induces worms of sufficient size to fragment into two parts ...
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14. self-assembly of isomeric pyrene–cholane amphiphiles into sheets ...
Oct 4, 2024 · Phosphodiester-linked cholane–pyrene–cholane trimers self-assemble into sheet-, tube- and worm-like nanostructures in aqueous conditions.
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15. Effects of the polychaetes Nereis diversicolor and Arenicola marina ...
Jul 18, 2024 · Worms were acclimated for 8 d at 15°C in uncontaminated sediment and 16‰ seawater before being transferred to pyrene-contaminated sediment ...
16. 7,8-dihydro-7-hydroxy-8-S-glutathionyl-benzo[a]pyrene, Metabolite ...
The metabolite 7,8-dihydro-7-hydroxy-8-S-glutathionyl-benzo[a]pyrene in Worm-GEM (version 1.4.0) can be found in the compartments ; and the subsystems .