Article
Environmental Sciences
Guilherme Lucio Martins, Adijailton Jose de Souza, Julio Flavio Osti, Julia Branda Gontijo, Mauricio Roberto Cherubin, Douglas Gomes Viana, Mayra Maniero Rodrigues, Valdemar Luiz Tornisielo, Jussara Borges Regitano
Summary: Land use and management changes affect soil bacteria and fungi composition and diversity, which can impact soil health and ecological functions. This study evaluated the effects of land-use, soil management, and microbial diversity depletion on soil enzyme activities involved in nutrient cycles and glyphosate mineralization. Bacterial communities played a critical role in glyphosate degradation, with microbial diversity being more important than land use and soil management. Conservation tillage systems, specifically no-tillage, were found to mitigate the negative effects of microbial diversity depletion and promote soil health and functionality, including soil detoxification in tropical agroecosystems.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yongsheng Chen, Wen-Juan Chen, Yaohua Huang, Jiayi Li, Jianfeng Zhong, Wenping Zhang, Yi Zou, Sandhya Mishra, Pankaj Bhatt, Shaohua Chen
Summary: Glyphosate, a broad-spectrum herbicide, is widely distributed and poses a serious threat to human safety and ecology. Microbial degradation has emerged as a promising method for treating glyphosate due to its efficiency and environmental friendliness. Microorganisms can utilize glyphosate as a nutrient source and degrade it into harmless products by cleaving specific bonds. However, the enzymes and functional genes involved in glyphosate degradation and the resistance mechanisms of microorganisms to glyphosate are not well understood.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Priyanka Gupta, Komal Pandey, Nishith Verma
Summary: Glyphosate, a commonly used herbicide known for its detrimental impact on the environment, is effectively mineralized through a two-step process involving catalytic wet air oxidation (cWAO) and microbial degradation. Iron nanoparticle-tipped carbon nanofibers supported on activated carbon beads serve as the cWAO catalyst, leading to significant degradation of glyphosate followed by complete mineralization with the assistance of a bacteria strain identified as Providencia vermicola. The non-toxicity of the catalyst towards the bacteria strain simplifies the remediation process, making it a promising approach for treating toxic pollutants in wastewater.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Luke J. McCartin, Samuel A. Vohsen, Susan W. Ambrose, Michael Layden, Catherine S. McFadden, Erik E. Cordes, Jill M. McDermott, Santiago Herrera
Summary: The study investigated the persistence of marine environmental DNA under different physicochemical conditions through degradation experiments, revealing a two-phase degradation process of eDNA with varying degrees of control by temperature, pH, and oxygen concentration. Marine eDNA can persist at quantifiable concentrations for longer periods at lower temperatures and degrade more rapidly at higher temperatures.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Forestry
Christopher B. Edge, Marika Brown, Shane Heartz, Dean Thompson, Len Ritter, Madhi Ramadoss
Summary: Glyphosate-based herbicides are widely used in Canadian forestry and around the world, with potential for trace levels to persist in vegetation for up to a year. Despite initial concerns over wildlife exposure exceeding safe intake levels, the dissipation of residues in plant matrices reduces the overall risk to wildlife health. Operational practices in Canadian forestry play a crucial role in minimizing potential risks associated with glyphosate exposure.
Article
Microbiology
Katia Ospino, Beny Spira
Summary: This study investigated the effects of glyphosate on the resistance, tolerance, or persistence of bacteria towards antibiotics, as well as the role of (p)ppGpp in this process. The results showed that glyphosate did not affect the minimum inhibitory concentration of tested antibiotics, but it enhanced bacterial tolerance and/or persistence towards them. The increase in ciprofloxacin and kanamycin tolerance was partially dependent on the presence of relA, while the strong increase in ampicillin tolerance caused by glyphosate was independent of relA. The study concluded that glyphosate contributes to the temporary increase in E. coli tolerance or persistence by inducing aromatic amino acid starvation, but does not affect antibiotic resistance.
Article
Chemistry, Multidisciplinary
Lei Gan, Makenzie T. Nord, Jacob M. Lessard, Noah Q. Tufts, Arunraj Chidambaram, Mark E. Light, Hongliang Huang, Eduardo Solano, Julio Fraile, Fabian Suarez-Garcia, Clara Vinas, Francesc Teixidor, Kyriakos C. Stylianou, Jose G. Planas
Summary: The removal of organophosphorus (OP) herbicides from water has been studied using various methods such as adsorptive removal, chemical oxidation, electrooxidation, enzymatic degradation, and photodegradation. In this study, a Zr-based metal-organic framework (mCB-MOF-2) was used for the adsorption and photodegradation of the OP herbicide glyphosate (GP). The mCB-MOF-2 demonstrated a high adsorption capacity for GP and selectively converted it to non-toxic sarcosine and orthophosphate under UV-vis light irradiation. These findings suggest that mCB-MOF-2 is a promising material for removing OP herbicides from water.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Environmental Sciences
Carmen Alejandra Sabio Garcia, Maria Solange Vera, Alicia Vinocur, Martin Graziano, Cecilia Miranda, Haydee Norma Pizarro
Summary: Glyphosate-based herbicides (GBH) encompass a variety of glyphosate salts and adjuvants, which have diverse impacts on aquatic microbial communities beyond the effects of the active ingredient alone. Different GBH showed significantly different effects on microbial community structures, affecting bacterioplankton abundance and specific picocyanobacteria populations. These findings highlight the need to consider the broader effects of GBH formulations on natural aquatic ecosystems beyond simply attributing impacts to glyphosate alone.
ENVIRONMENTAL POLLUTION
(2022)
Review
Microbiology
Maria Luisa Castrejon-Godinez, Efrain Tovar-Sanchez, Leticia Valencia-Cuevas, Marcos Eduardo Rosas-Ramirez, Alexis Rodriguez, Patricia Mussali-Galante
Summary: Glyphosate is a widely used broad-spectrum herbicide in agriculture since the 1970s, with increasing levels particularly due to the introduction of glyphosate-resistant crops in the 1990s. Its presence in the environment and potential adverse effects on human health have raised concerns. Bioremediation is suggested as a suitable alternative for treating glyphosate pollution, with microorganisms showing potential for herbicide biodegradation. Further research is needed to understand the mechanisms employed by the microorganisms to counteract glyphosate exposure effects.
Article
Chemistry, Multidisciplinary
Timo Rheinberger, Jonas Wolfs, Agata Paneth, Hubert Gojzewski, Piotr Paneth, Frederik R. Wurm
Summary: The research team developed a library of PLA derivatives with breaking points incorporated to accelerate degradation in artificial seawater, offering a potential solution to reduce future marine pollution.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Agronomy
Marco Milan, Francesco Vidotto, Silvia Fogliatto
Summary: The leaching of glyphosate and AMPA is affected by the time elapsed between spraying and the first rainfall event. The first rainfall event plays a crucial role in moving glyphosate through the soil, increasing the risk of water contamination. Glyphosate residues can persist longer than expected and may impact the movement of other compounds in the soil profile.
Article
Biochemistry & Molecular Biology
Celio Dias Santos-Junior, Ramiro Logares, Flavio Henrique-Silva
Summary: Rivers play a vital role in connecting the carbon cycle between land and aquatic ecosystems by transporting and transforming terrestrial organic matter. In the Amazon River, microbial communities degrade a significant portion of lignin from terrestrial organic matter, with some microbes specializing in cellulose degradation while others also oxidizing lignin. The complex interactions among abundant microbes in the Amazon River likely contribute to the rapid turnover of terrestrial organic matter in this ecosystem.
Article
Environmental Sciences
Tacey L. Hicks, Kathryn E. F. Shamberger, Jessica N. Fitzsimmons, Christine C. Jensen, Steven F. DiMarco
Summary: Intense rainfall from tropical cyclones can cause coastal acidification, which will become more prevalent and severe due to climate change. Observational analyses from Galveston Bay, Texas, in 2017 and 2018 show that extreme precipitation following Hurricane Harvey led to calcium carbonate undersaturation and ecosystem-level acidification.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Ecology
Patrick Heritier-Robbins, Smruthi Karthikeyan, Janet K. Hatt, Minjae Kim, Markus Huettel, Joel E. Kostka, Konstantinos T. Konstantinidis, Luis M. Rodriguez-R
Summary: The study tested the specialization-disturbance hypothesis on beach sands disturbed by DWH crude oil in laboratory conditions, finding that functional diversity significantly increased while taxonomic diversity significantly declined over a two-month period, supporting the hypothesis that specialist taxa decrease following disturbances.
Review
Microbiology
Sayed Golam Mohiuddin, Sreyashi Ghosh, Han G. Ngo, Shayne Sensenbach, Prashant Karki, Narendra K. Dewangan, Vahideh Angardi, Mehmet A. Orman
Summary: Cellular self-digestion is an evolutionarily conserved process in prokaryotic cells that enables survival under stressful conditions by recycling essential energy molecules, although it can also render cells less fit for growth when exposed to fresh nutrients. This process may also provide temporary protection from antibiotics until the damage is repaired.
Article
Multidisciplinary Sciences
Marie C. Thomas, Florita Flores, Sarit Kaserzon, Rebecca Fisher, Andrew P. Negri
SCIENTIFIC REPORTS
(2020)
Review
Environmental Sciences
F. Mikaela Nordborg, Ross J. Jones, Michael Oelgemoller, Andrew P. Negri
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Multidisciplinary Sciences
Florita Flores, Sarit Kaserzon, Gabriele Elisei, Gerard Ricardo, Andrew P. Negri
Article
Environmental Sciences
Joseane A. Marques, Florita Flores, Frances Patel, Adalto Bianchini, Sven Uthicke, Andrew P. Negri
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Christopher A. Brunner, Sven Uthicke, Gerard F. Ricardo, Mia O. Hoogenboom, Andrew P. Negri
Summary: Climate change poses new challenges to coral reef replenishment, with coral recruits under future climate conditions showing reduced ability to remove sediments and higher mortality rates. Water-quality guidelines will need to be adjusted according to climate change to protect future coral recruitment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Ecology
Gerard Ricardo, Hugo Kiff, Florita Flores
Summary: High post-settlement mortality is a major limiting factor for coral reef population recovery, but newly settled corals have been observed to exhibit robust regeneration following physical damage. Despite potential damage from physical interactions during recruitment, coral recruits show resilience to damage and can survive in dynamic habitats.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2021)
Article
Environmental Sciences
Florita Flores, Joseane A. Marques, Sven Uthicke, Rebecca Fisher, Frances Patel, Sarit Kaserzon, Andrew P. Negri
Summary: This study found that the Great Barrier Reef is negatively impacted by the combined effects of the contaminant diuron and climate change, particularly affecting the physiological responses of corals, with photosynthesis being significantly affected. It suggests that water quality guideline values may need to be adjusted as climate conditions change.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
K. L. E. Berry, S. Hess, T. D. Clark, A. S. Wenger, M. O. Hoogenboom, A. P. Negri
Summary: Research on the sub-lethal effects of coal contamination on tropical marine organisms, including fish, showed that high coal concentrations significantly affect the aerobic metabolism and gill structure of marine fish species. However, most observed effects occurred at high coal concentrations that are unlikely under most coal spill scenarios. Future studies should focus on chronic exposures to lower concentrations of coal contamination to further understand its impacts.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Andrew P. Negri, Diane L. Brinkman, Florita Flores, Joost van Dam, Heidi M. Luter, Marie C. Thomas, Rebecca Fisher, Laura S. Stapp, Paul Kurtenbach, Andrea Severati, Thomas F. Parkerton, Ross Jones
Summary: Toxicity thresholds for dissolved oil in tropical ocean risk assessments are largely based on sensitivities of temperate and/or freshwater species. Experimental data supported the use of TLM-modeled thresholds for tropical application, and identified several tropical species as more sensitive in the TLM database, which can be utilized in modeling risk for tropical marine ecosystems.
MARINE POLLUTION BULLETIN
(2021)
Article
Multidisciplinary Sciences
Magena Marzonie, Florita Flores, Nora Sadoun, Marie C. Thomas, Anais Valada-Mennuni, Sarit Kaserzon, Jochen F. Mueller, Andrew P. Negri
Summary: Research has shown that herbicides in the Great Barrier Reef have varying levels of inhibition on the photosynthetic efficiency and specific growth rate of coral endosymbionts, with PSII herbicides exhibiting significant toxicity while non-PSII herbicides have minimal impact. This data on the toxicity of Symbiodiniaceae will help improve water quality guidelines and herbicide management in tropical marine ecosystems.
SCIENTIFIC REPORTS
(2021)
Article
Ecology
Christopher A. Brunner, Gerard F. Ricardo, Sven Uthicke, Andrew P. Negri, Mia O. Hoogenboom
Summary: This study examined the independent and combined impacts of climate change and light attenuation on coral recruits. The results showed that light attenuation significantly decreased recruit survival, size, and Symbiodiniaceae densities, especially for older recruits. The study also indicated that future climate conditions and light attenuation had additive effects on recruit survival.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Article
Environmental Sciences
F. Mikaela Nordborg, Diane L. Brinkman, Andrew P. Negri
Summary: This study provides data on the sensitivity of different post-settlement life stages of the coral species Acropora millepora to heavy fuel oil (HFO) exposure. The results show that ultraviolet radiation (UVR) increases the toxicity of HFO towards corals, supporting the importance of incorporating UVR in oil toxicity testing.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Diane L. Brinkman, Florita Flores, Heidi M. Luter, F. Mikaela Nordborg, Maxime Brooks, Thomas F. Parkerton, Andrew P. Negri
Summary: The risks posed by petroleum spills to coral reefs are not well understood. This study aims to quantify the toxicity thresholds of aromatic hydrocarbons to reef-building corals. The results show that Acropora millepora is more sensitive to aromatic hydrocarbons compared to other corals and aquatic taxa.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Atefeh Zendehboudi, Azam Mohammadi, Sina Dobaradaran, Gabriel E. De-la-Torre, Bahman Ramavandi, Seyed Enayat Hashemi, Reza Saeedi, Emran Moradpour Tayebi, Ahmad Vafaee, Amirhossein Darabi
Summary: This study investigated the characteristics and ecological risks of microplastics (MPs) in ballast water for the first time, and found high levels of MP pollution. These findings contribute to our understanding of the sources and risks of microplastics in marine ecosystems.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Rose Boahemaa Pinto, Linda Bogerd, Martine van der Ploeg, Kwame Duah, Remko Uijlenhoet, Tim H. M. van Emmerik
Summary: Catchment-scale plastic pollution assessments provide insights into the sources, sinks, and pathways of plastic pollution. We propose an approach to quantify macroplastic transport and density in the Odaw catchment, Ghana, and find that the urban riverine zone has the highest transport, while the urban tidal zone has the highest riverbank and land macroplastic density.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Aliya Baidourela, Qian Sun, Gongxin Yang, Umut Halik, Zhongkai Dong, Kaixu Cai, Guili Sun, Wenya Zhang, Sisi Cheng
Summary: The study focused on heavy metal pollution in the green vegetation of a suburban industrial area in Tuokexun County, Xinjiang, China. The results showed that the overall level of heavy metal pollution in the soil was minor, with mercury (Hg) being the most severe contamination, likely caused by human activities. The composition of heavy metal elements in trees was more stable compared to grass and shrubs, with varying concentrations across different vegetation. Shrubbery was found to be the most effective in heavy metal restoration, and there were disparities in heavy metal enrichment among different vegetation types.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
James H. Bridson, Hayden Masterton, Beatrix Theobald, Regis Risani, Fraser Doake, Jessica A. Wallbank, Stefan D. M. Maday, Gavin Lear, Robert Abbel, Dawn A. Smith, Joanne M. Kingsbury, Olga Pantos, Grant L. Northcott, Sally Gaw
Summary: Plastic pollution has significant environmental impacts, largely due to chemical additives. However, the behavior of plastic additives in marine environments is not well understood. A marine deployment experiment was conducted to investigate the effects of weathering on the extractables profile of four types of plastics in New Zealand over a period of nine months. The concentration of additives in polyethylene and oxo-degradable polyethylene was strongly influenced by artificial weathering, while polyamide 6 and polyethylene terephthalate showed minimal change. These findings emphasize the importance of considering leaching and weathering effects on plastic composition when assessing the potential impact and risk of plastic pollution in receiving environments.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Alan G. Scarlett, Francis D. Spilsbury, Steven J. Rowland, Marthe Monique Gagnon, Kliti Grice
Summary: This study used diamondoid hydrocarbon distributions to identify the sources of environmental oil contamination. A suite of 20 diamondoids was found to accumulate in fish adipose tissue. The scatter plots of indices between fish and exposure oils showed a close to ideal 1:1 relationship, which can be used to determine the origin of the oil.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Shan Jiang, Mengmeng Wan, Kun Lin, Yanshan Chen, Rui Wang, Liju Tan, Jiangtao Wang
Summary: In this study, the concentration, composition, distribution, and sources of PCBs in surface seawater of the Bohai Bay were analyzed. The results showed that PCBs in the Bohai Bay had high concentrations and were primarily derived from land-based sources such as port activities and river inputs. The PCBs in the Bohai Bay may come from commercial PCBs and their incineration products, municipal landfills, wood and coal combustion, and industrial activities, etc.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Icaro S. A. Porto, Saulo V. A. Dantas, Caio S. A. Felix, Francisco A. S. Cunha, Jailson B. de Andrade, Sergio L. C. Ferreira
Summary: This study evaluated the risks of mercury levels in sardines consumed by low-income population in Salvador, Brazil. The results showed that the mercury content in the sampled sardines posed no risks to human health. This study is significant as most sardines in Salvador come from Todos os Santos Bay, which has a history of mercury contamination.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Jiahui Chen, Chengyu Yuan, Guanqun Zhai, Guangcheng Chen, Heng Zhu, Jun Liu, Yong Ye
Summary: This study investigated the combined influences of species selection and site elevation on greenhouse gas fluxes from restored mangrove soils. The results suggest that Avicennia marina should be selected for mangrove restoration to minimize carbon release and reduce the influence of greenhouse gas fluxes on the global greenhouse effect.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Emmanuel Onyeabor, Uju Obuka
Summary: The Gulf of Guinea region in Africa is a significant area for coastal countries, playing a vital role in their economic and environmental development. This study aims to reduce marine plastic pollution in the region by utilizing legal instruments.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Yuanli Liu, Stephan Luttjohann, Alvise Vianello, Claudia Lorenz, Fan Liu, Jes Vollertsen
Summary: Large area attenuated total reflectance-Fourier transform infrared spectroscopy (LAATR-FTIR) is a novel technique for detecting small microplastics, with limited accuracy for large microplastics. However, it shows promise in homogeneous matrices. The spectra quality is comparable between transmission mode and LAATR mode.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Phuc T. D. Le, Andrew M. Fischer, Britta D. Hardesty, Heidi J. Auman, Chris Wilcox
Summary: This study explores the relationship between ocean currents and the accumulation of floating marine debris (FMD) and finds that higher concentrations of FMD are associated with frontal frequencies (FF). FMD is primarily trapped in accumulation zones between fronts and the coastline, which have high biodiversity value.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Rosa Sawan, Perine Doyen, Florence Viudes, Rachid Amara, Celine Mahfouz
Summary: Few studies have examined the impact of urbanization and meteorological events on microplastics discharged into the sea through rivers. Surface water samples were collected from two Lebanese rivers, with differing degrees of urbanization, during dry and wet periods. The results showed that the most industrialized river had a significantly higher abundance of microplastics compared to the less-industrialized river. There was also a correlation between particle contamination and the season at each site, with microplastic concentrations highest on the first day of the wet season. These findings highlight the importance of considering meteorological events in accurately assessing plastic pollution influx into coastal waters.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Katherine R. Shaw, Jonathan L. Whitney, Eileen M. Nalley, Madeline C. Schmidbauer, Megan J. Donahue, Jesse Black, Raquel N. Corniuk, Kellie Teague, Rachel Sandquist, Catherine Pirkle, Rachel Dacks, Max Sudnovsky, Jennifer M. Lynch
Summary: This study examines the ingestion of plastic in reef fish in the Republic of the Marshall Islands. Plastic particles were found in the gastrointestinal tracts of multiple fish species. However, further analysis revealed that these particles were actually natural materials and posed no threat to human consumers.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Revati Hardikar, C. K. Haridevi, Shantaj Deshbhratar
Summary: This study investigated the variability in phytoplankton functional structure using a trait-based approach and explored the relationship between species traits and environmental factors, as well as their impact on ecosystem functioning. The results revealed that morphological traits, temperature, and ammonia played a decisive role in the seasonal succession of phytoplankton species. It was found that certain traits favored higher biomass production but might hinder energy transfer efficiency. The strong correlation between environmental variables and phytoplankton functional structure supports the practical implementation of a trait-based approach in studying phytoplankton community dynamics under different environmental conditions.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Engki A. Kisnarti, Nining Sari Ningsih, Mutiara R. Putri, Nani Hendiarti, Bernhard Mayer
Summary: This study examines the movement patterns of plastic marine debris in Indonesian waters, revealing that Indonesia contributes significantly to transboundary marine debris in the Pacific Ocean, Indian Ocean, and the South China Sea. Most of the debris remains in Indonesian waters and moves back and forth due to the influence of monsoon currents.
MARINE POLLUTION BULLETIN
(2024)