1
|
Bilhorn C, Brua RB, Izral NM, Yates AG. Evidence of interregional similarity in crayfish metabolomes at reference sites: Progress towards the metabolome as a biomonitoring tool. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 352:120076. [PMID: 38211428 DOI: 10.1016/j.jenvman.2024.120076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/03/2024] [Accepted: 01/06/2024] [Indexed: 01/13/2024]
Abstract
It has been proposed that biomonitoring may benefit from the use of metabolomics (the study of all small molecules in an organism) to detect sub-lethal organism stress through changes in the metabolite profile (i.e., the metabolome). However, to integrate the metabolome into biomonitoring programs the amount of natural variability among and within populations of indicator taxa must be established prior to generating a reference condition. This study determined variation in the metabolome among ecoregion and stream of origin in the northern crayfish (Faxonius virilis) and if that variation inhibited detection of stressor effects at sites exposed to human activities. We collected crayfish from seven minimally disturbed streams (i.e., reference streams), distributed across three level II ecoregions in central Canada and compared their metabolomes. We found ecoregion and stream origin were poor predictors of crayfish metabolomes. This result suggests crayfish metabolomes were similar, despite differing environmental conditions. Metabolomes of crayfish collected from three stream sites exposed to agricultural activity and municipal wastewater (i.e., test sites) were then compared to the crayfish metabolomes from the seven reference streams. Findings showed that crayfish metabolomes from test sites were strongly differentiated from those at all reference sites. The consistency in the northern crayfish metabolome at the studied reference streams indicates that a single reference condition may effectively detect impacts of human activities across the sampled ecoregions.
Collapse
Affiliation(s)
- Cora Bilhorn
- Department of Geography, Western University, London, Ontario, Canada
| | - Robert B Brua
- National Hydrologic Research Centre, Environment and Climate Change Canada, Saskatoon, Saskatchewan, Canada
| | - Natalie M Izral
- Department of Geography, Western University, London, Ontario, Canada
| | - Adam G Yates
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada.
| |
Collapse
|
2
|
Chen K, Tang R, Luo Y, Chen Y, Ei-Naggar A, Du J, Bu A, Yan Y, Lu X, Cai Y, Chang SX. Transcriptomic and metabolic responses of earthworms to contaminated soil with polypropylene and polyethylene microplastics at environmentally relevant concentrations. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128176. [PMID: 34996001 DOI: 10.1016/j.jhazmat.2021.128176] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/13/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
Examining transcriptomic and metabolic responses of earthworms to microplastic-contaminated soil is critical for understanding molecular-level toxicity of microplastics; yet very little research on this topic exists. We investigated influences of environmentally relevant concentrations (ERC) of polypropylene (PP) and polyethylene (PE) microplastic-contaminated soil on earthworms at the transcriptomic, metabolic, tissue and whole-body levels to study their molecular toxicity. The addition of PP and PE at ERC induced oxidative stress on earthworms, as indicated by the high enrichment of glutathione metabolism and increased glutamine at the transcriptomic and metabolic levels. Digestive and immune systems of earthworms were damaged according to the injuries of the intestinal epithelium, partial shedding of chloragogenous tissues and unclear structure of coelom tissues, which were confirmed by pathway analysis at the transcriptomic level. Significant enrichment of arachidonic acid and glycerolipid metabolisms indicated that PP and PE disturbed the lipid metabolism in earthworms. Significantly increased betaine and myo-inositol, and decreased 2-hexyl-5-ethyl-3-furansulfonate suggested that PP and PE caused differences in osmoregulation extent. In conclusion, most similar responses of earthworm might result from special size rather than type effects of PP and PE microplastics. Contamination of soils with microplastics even at ERC has health risks to earthworms; therefore, proper management of microplastics to reduce their input to the environment is key to reducing the health risks to soil fauna.
Collapse
Affiliation(s)
- Keyi Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Ronggui Tang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Yongming Luo
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Youchao Chen
- College of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Ali Ei-Naggar
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China; Department of Soil Sciences, Faculty of Agriculture, Ain Shams University, Cairo 11241, Egypt
| | - Jianhang Du
- College of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Aiai Bu
- College of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Yan Yan
- College of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Xinghang Lu
- College of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Yanjiang Cai
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
| | - Scott X Chang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China; Department of Renewable Resources, University of Alberta, 442 Earth Sciences Building, Edmonton, Alberta T6G 2E3, Canada
| |
Collapse
|
3
|
Fanelli G, Coleine C, Gevi F, Onofri S, Selbmann L, Timperio AM. Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities. Life (Basel) 2021; 11:96. [PMID: 33514042 PMCID: PMC7911838 DOI: 10.3390/life11020096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/18/2021] [Accepted: 01/25/2021] [Indexed: 12/31/2022] Open
Abstract
Cryptoendolithic communities are almost the sole life form in the ice-free areas of the Antarctic desert, encompassing among the most extreme-tolerant organisms known on Earth that still assure ecosystems functioning, regulating nutrient and biogeochemical cycles under conditions accounted as incompatible with active life. If high-throughput sequencing based studies are unravelling prokaryotic and eukaryotic diversity, they are not yet characterized in terms of stress adaptations and responses, despite their paramount ecological importance. In this study, we compared the responses of Antarctic endolithic communities, with special focus on fungi, both under dry conditions (i.e., when dormant), and after reanimation by wetting, light, and optimal temperature (15 °C). We found that several metabolites were differently expressed in reanimated opposite sun exposed communities, suggesting a critical role in their success. In particular, the saccharopine pathway was up-regulated in the north surface, while the spermine/spermidine pathway was significantly down-regulated in the shaded exposed communities. The carnitine-dependent pathway is up-regulated in south-exposed reanimated samples, indicating the preferential involvement of the B-oxidation for the functioning of TCA cycle. The role of these metabolites in the performance of the communities is discussed herein.
Collapse
Affiliation(s)
- Giuseppina Fanelli
- Department of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; (G.F.); (C.C.); (F.G.); (S.O.)
| | - Claudia Coleine
- Department of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; (G.F.); (C.C.); (F.G.); (S.O.)
| | - Federica Gevi
- Department of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; (G.F.); (C.C.); (F.G.); (S.O.)
| | - Silvano Onofri
- Department of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; (G.F.); (C.C.); (F.G.); (S.O.)
| | - Laura Selbmann
- Department of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; (G.F.); (C.C.); (F.G.); (S.O.)
- Italian National Antarctic Museum (MNA), Mycological Section, 16166 Genoa, Italy
| | - Anna Maria Timperio
- Department of Ecological and Biological Sciences, University of Tuscia, 01100 Viterbo, Italy; (G.F.); (C.C.); (F.G.); (S.O.)
| |
Collapse
|