Article
Chemistry, Analytical
Angela Cantillo-Gonzalez, Javiera Anguita, Claudia Rojas, Ignacio T. Vargas
Summary: This study enriched lithotrophic electrochemically active microorganisms (EAMs) using Winogradsky BES columns. After 15 months, the power densities of Winogradsky BESs reached high values, and microbial growth and electrochemical activity were confirmed through scanning electron microscopy and linear sweep voltammetry.
Article
Environmental Sciences
Jie Gao, Tianliang Zheng, Yamin Deng, Hongchen Jiang
Summary: The study investigated the processes controlling arsenic mobilization under bacterial sulfate reduction in aquifer sediments, revealing the concurrent occurrence of sulfate, Fe(III), and arsenate reduction. The increase in abundance of sulfate-reducing bacteria facilitated sulfate reduction activity, while the limited ability of newly-formed Fe-sulfide minerals to sequester As led to a transient attenuation followed by re-increase of aqueous As.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Microbiology
Constanza Herrera, Ruben Moraga, Brian Bustamante, Claudia Vilo, Paulina Aguayo, Cristian Valenzuela, Carlos T. Smith, Jorge Yanez, Victor Guzman-Fierro, Marlene Roeckel, Victor L. Campos
Summary: Arsenic is a semimetal toxic to humans, commonly exposed through consumption of contaminated water. This study isolated a high As-resistant bacterium Pseudomonas migulae VC-19 from sediments of the As-rich Camarones River in Chile, showing high rates of As(III) conversion when immobilized on activated carbon. It has the potential for biotechnological application in treating arsenic contaminated waters.
Article
Environmental Sciences
Limin Shu, Jack C. Ng, Wenzhong Tang, Yu Zhao, Liu Sun, Hong Zhang
Summary: The study investigated arsenic pollution in surface sediments using the DGH model, showing low contamination and ecological risk levels in total content but low to moderate risk in the fraction. Dynamic risk assessment revealed potential DGH burst trends in 45.24%-78.57% of the BYD Lake.
Article
Environmental Sciences
Ioanna Damikouka, Alexandra Katsiri
Summary: This study focused on the effects of specific ions in the water column and natural attenuation processes on the leaching of metals from marine sediments. Experimental results showed that the leaching of metals was influenced by the concentration of dissolved constituents.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Dongwei Hou, Renjun Zhou, Shenzheng Zeng, Dongdong Wei, Xisha Deng, Chengguang Xing, Shaoping Weng, Jianguo He, Zhijian Huang
Summary: The research revealed that bacterial communities in shrimp pond sediments exhibit high diversity, with core bacterial communities closely related to the physicochemical properties of sediments. At the mesoscale level, the bacterial communities in shrimp pond sediments are driven by stochastic processes.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Soil Science
Jiangtao Qiao, Xiaomin Li, Fangbai Li, Songxiong Zhong, Manjia Chen
Summary: The study demonstrates that adding riboflavin in arsenic-contaminated paddy soil can promote the transformation of arsenic and iron, as well as increase the transcription of arsenate-respiring bacteria, facilitating arsenic reduction and release.
Review
Biotechnology & Applied Microbiology
Sylvia Kunakom, Hiroshi Otani, Daniel W. Udwary, Drew T. Doering, Nigel J. Mouncey
Summary: Ribosomally synthesized and post-translationally modified peptides (RiPPs) are complex secondary metabolites with potential roles in medicine, agriculture, and chemical ecology. Cytochromes P450 (P450s) are a superfamily of enzymes involved in RiPP biosyntheses, catalyzing various enzymatic reactions. The discovery of P450-mediated RiPP biosynthetic pathways expands the structural and functional diversity of these secondary metabolites.
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
Yibin Huang, Peter S. K. Knappett, Michelle Berube, Saugata Datta, M. Bayani Cardenas, Kimberly A. Rhodes, Natasha T. Dimova, Imtiaz Choudhury, Kazi M. Ahmed, Alexander van Geen
Summary: The goal of this study is to compare the calculated mass of sediment-bound arsenic from dissolved groundwater arsenic that discharges through riverbanks to the observed mass of arsenic trapped within riverbank sediments. The results support the hypothesis that the dissolved arsenic in groundwater discharge to the river is sufficient to account for the observed buried deposits of arsenic along riverbanks.
JOURNAL OF CONTAMINANT HYDROLOGY
(2022)
Article
Environmental Sciences
Tingting Teng, Jidong Liang, Jinwei Zhu, Pengkang Jin, Dayi Zhang
Summary: Bioaugmentation aided by biosurfactant is an effective method for removing pyrene from contaminated sites. This process accelerates pyrene degradation and increases the diversity of active pyrene-degrading bacteria.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Xin Yin, Han Hua, James Dyer, Richard Landis, Donna Fennell, Lisa Axe
Summary: Reactive iron mineral coatings in subsurface RTZs contribute to contaminant attenuation. An 18.3-m anoxic core was collected, and reactive Fe mineral coatings were found to be abundant. Reaction kinetics with RTZ sediments showed pseudo-first-order reactions for the three contaminants, with degradation of 90% achieved in less than 39 days. The high reactivity of Fe mineral coatings is hypothesized to be due to the large surface areas of the nano-mineral coatings.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Leah E. Jackson, Wendy M. Robertson, Megan Rohrssen, Anthony Chappaz, Lawrence D. Lemke
Summary: This study analyzed the concentration of 1,4-dioxane at the Gelman Site and identified a mass balance deficit. Various mechanisms were evaluated, and bypass of the monitoring well network was found to be the most plausible explanation. The study also emphasized the importance of characterizing aquifer heterogeneity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Shenyang Pan, Wenlong Zhang, Yi Li, Pengcheng Zhou, Huanjun Zhang, Lihua Niu, Longfei Wang
Summary: Maintaining the growth of hydrophytes is crucial in aquatic ecological research, and the hydrophyte microbiome plays a key role in this process. This study found that the hydrophyte host species significantly affected the assembly and function of bacterial communities, and identified core taxa that were associated with denitrification functions. These results highlight the importance of utilizing hydrophyte-associated bacteria to promote hydrophyte development and enhance aquatic ecological restoration.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Naizheng Xu, Jianshi Gong, Xiaohu Tao, Lin Liu
Summary: The distribution, migration, and enrichment of arsenic in groundwater is an important environmental and public health problem. This study assesses the potential pollution risk of arsenic-rich groundwater, analyzes the hydrogeochemical processes, and traces the ion source based on groundwater hydrogeochemical data. The findings suggest that arsenic poses a high exposure risk for public health in the study area, with 23% of samples exceeding the drinking water standards of the World Health Organization.
Article
Engineering, Environmental
Yuting Li, Peng Gu, Wen Zhang, Hongwen Sun, Jianing Wang, Leilei Wang, Bing Li, Lei Wang
Summary: Anthropogenic activities resulted in the accumulation of PAHs and MPs in agricultural soils. Biodegradable MPs (BPs) and non-biodegradable LDPE were selected as representative MPs. The soil microcosm incubation experiment showed that BPs reduced PAHs decay rate, while LDPE increased it. BPs and LDPE also had different effects on the soil bacterial community and PAHs speciation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Microbiology
A. Gorlas, T. Mariotte, L. Morey, C. Truong, S. Bernard, J-M Guigner, J. Oberto, F. Baudin, G. Landrot, C. Baya, P. Le Pape, G. Morin, P. Forterre, F. Guyot
Summary: Thermococcales, a major order of archaea inhabiting hydrothermal deep-sea vents, have the ability to rapidly produce iron sulfide. This process is dependent on the presence of zero-valent sulfur and results in cell mortality, but also allows for the growth of new cells. This suggests that biologically induced mineralization of iron-sulfides could be a survival strategy employed by Thermococcales in high-temperature hydrothermal environments.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Review
Environmental Sciences
Philippe N. Bertin, Simona Crognale, Frederic Plewniak, Fabienne Battaglia-Brunet, Simona Rossetti, Michel Mench
Summary: Microorganisms and plants play critical roles in the arsenic biogeochemical cycle, offering potential for innovative biotechnological applications to remediate arsenic pollution. Genomic studies and experiments have enhanced our understanding of their interactions with arsenic, leading to the development of environmentally friendly bioprocessing options targeting arsenic contamination.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geochemistry & Geophysics
Beatrix M. Heller, Silvana Bressan Riffel, Thierry Allard, Guillaume Morin, Jean-Yves Roig, Renaud Coueffe, Geoffrey Aertgeerts, Alexis Derycke, Claire Ansart, Rosella Pinna-Jamme, Cecile Gautheron
Summary: The dynamics of tropical weathering through time and its association with climatic and geodynamic forcing in the formation of laterite and its long-term evolution are studied. The study focuses on lateritic-bauxitic duricrusts from Kaw mountain in French Guiana and investigates their mineralogy, geochemistry, and (U-Th)/He geochronology. The results reveal the heterogeneity in the formation and evolution of duricrust through processes of dissolution and (re)precipitation of Fe (oxyhydr)oxides. The intensification of weathering and shift towards bauxitic conditions since the end of the Miocene are indicated by the dissolution and (re)precipitation of Fe minerals, Al-substitution in goethite, and the overall enrichment in Th. The study proposes a model of lateritization since at least 30 Ma and bauxitization since the late Miocene, providing new insights into the timescale and intensity of weathering in the region.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Cell Biology
Raphael Carapito, Richard Li, Julie Helms, Christine Carapito, Sharvari Gujja, Veronique Rolli, Raony Guimaraes, Jose Malagon-Lopez, Perrine Spinnhirny, Alexandre Lederle, Razieh Mohseninia, Aurelie Hirschler, Leslie Muller, Paul Bastard, Adrian Gervais, Qian Zhang, Francois Danion, Yvon Ruch, Maleka Schenck, Olivier Collange, Thien-Nga Chamaraux-Tran, Anne Molitor, Angelique Pichot, Alice Bernard, Ouria Tahar, Sabrina Bibi-Triki, Haiguo Wu, Nicodeme Paul, Sylvain Mayeur, Annabel Larnicol, Geraldine Laumond, Julia Frappier, Sylvie Schmidt, Antoine Hanauer, Cecile Macquin, Tristan Stemmelen, Michael Simons, Xavier Mariette, Olivier Hermine, Samira Fafi-Kremer, Bernard Goichot, Bernard Drenou, Khaldoun Kuteifan, Julien Pottecher, Paul-Michel Mertes, Shweta Kailasan, M. Javad Aman, Elisa Pin, Peter Nilsson, Anne Thomas, Alain Viari, Damien Sanlaville, Francis Schneider, Jean Sibilia, Pierre-Louis Tharaux, Jean-Laurent Casanova, Yves Hansmann, Daniel Lidar, Mirjana Radosavljevic, Jeffrey R. Gulcher, Ferhat Meziani, Christiane Moog, Thomas W. Chittenden, Seiamak Bahram
Summary: In this study, multi-omics analysis and artificial intelligence were used to examine the differences in biological factors between critical and non-critical COVID-19 patients in a young and otherwise healthy cohort. The study identified ADAM9 as a driver of disease severity and a potential therapeutic target.
SCIENCE TRANSLATIONAL MEDICINE
(2022)
Article
Environmental Sciences
Guillaume Wattelez, Cecile Dupouy, Farid Juillot
Summary: This article demonstrates the application of unsupervised clustering methods to classify seabed colors in the shallow waters of a tropical oligotrophic lagoon in New Caledonia using Sentinel-2 images. Standardization of data improves the accuracy of the method and highlights its relevance and robustness in optically complex shallow settings.
Article
Microbiology
Annela Semai, Frederic Plewniak, Joanna Lledo, Gwenolah Annonay, Celine Vandecasteele, Celine Lopez-Roques, Philippe N. Bertin
Summary: Stenotrophomonas maltophilia strain 1800 was isolated from the effluent of an industrial oil refinery in Algeria, and its genome was sequenced and assembled using multiple sequencing technologies.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2022)
Article
Ecology
Hamid Amir, Laurent Bordez, Yvon Cavaloc, Philippe Jourand, Marc Ducousso, Farid Juillot
Summary: Ecological restoration is considered the best solution for mining-degraded areas, especially valuable ecosystems. However, the storage of topsoil can negatively affect soil fertility and microbial diversity. This study examined the evolution of topsoils stored in piles on mined areas and found that storage duration, depth, and topsoil origin all influenced microbial, fungal, and physical properties of the soil. The findings highlight the importance of minimizing stockpiling duration and reducing pile height to ensure successful ecosystem restoration.
ECOLOGICAL ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Karine Pinel, Cecile Heraud, Guillaume Morin, Karine Dias, Annaelle Marce, Linda Beauclair, Stephanie Fontagne-Dicharry, Karthik Masagounder, Martina Klunemann, Iban Seiliez, Florian Beaumatin
Summary: This study investigated the metabolism of synthetic methionine (MET) sources DL-MET and DL-Methionine Hydroxy Analog (MHA) in rainbow trout (RT) cells. The results demonstrated that DL-MET was absorbed and metabolized more efficiently than MHA, and both synthetic MET sources exhibited similar effects in RT liver.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
T. Darriere, E. Jobet, D. Zavala, M. L. Escande, N. Durut, A. de Bures, F. Blanco-Herrera, E. A. Vidal, M. Rompais, C. Carapito, S. Gourbiere, J. Saez-Vasquez
Summary: This article investigates the effects of heat stress on the nucleolus in Arabidopsis thaliana plants, and demonstrates that it disrupts nucleolar structure, inhibits pre-rRNA processing, and leads to imbalanced ribosome profiles. However, the accuracy of transcription initiation and cleavage at specific sites are not affected. The study also shows that the nucleolar structure, pre-rRNA processing pathway, and ribosome profiles can be restored after returning to optimal conditions.
Article
Plant Sciences
Carlos de Tomas, Amelie Bardil, Raul Castanera, Josep M. Casacuberta, Carlos M. Vicient
Summary: The fusion of two parental genomes in the peach x almond hybrid did not result in significant changes in DNA methylation or transcription, challenging the expectation of genomic shock. This finding suggests the possibility of using interspecific peach x almond crosses for peach improvement.
HORTICULTURE RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
C. Ansart, C. Quantin, D. Calmels, T. Allard, J. Y. Roig, R. Coueffe, B. Heller, R. Pinna-Jamme, J. Nouet, S. Reguer, D. Vantelon, C. Gautheron
Summary: This study focuses on the development of lateritic and bauxitic duricrusts over the Paleoproterozoic Greenstone Belt in the Brownsberg, Suriname. Geochronological, mineralogical, and geochemical analyses provide insights into the formation history, ages, and environmental evolution of these duricrusts, revealing a complex and long-lasting weathering history in the region.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Environmental Sciences
Salima Tighidet, Frederic Plewniak, Amalia Sayeh, Lisa Gil, Celine Vandecasteele, Celine Lopez-Roques, Mouloud Kecha, Philippe N. Bertin
Summary: A heavy metal resistant actinobacterial strain was isolated from a lead and zinc mine in Algeria. It showed high resistance to various heavy metals and had the ability to degrade different types of dyes. The strain has potential applications in the bioremediation of textile dyeing industry effluents.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Environmental Sciences
Farid Juillot, Leonore Flipo, Mickael Tharaud, Eric Viollier, Vincent Noe, Pierre Le Pape, Jean-Michel Fernandez, Benjamin Moreton, Guillaume Morin
Summary: This study investigates the bioavailability of trace metals in coastal sediments downstream of an ultramafic catchment in New Caledonia. The results show a decreasing shore-to-reef gradient in the bioavailability of nickel and chromium, indicating the importance of ultramafic sediments in coastal deposition.
Article
Chemistry, Physical
Guillaume Morin, Frederic Averseng, Xavier Carrier, Pierre Le Pape, Yishan Du, Yusheng HongE, Elora Bourbon, Giuseppe Sportelli, Tiago A. Da Silva, Alberto Mezzetti, Camille Baya, Thierry Allard, Jessica Brest, Maryse Rouelle
Summary: Heterogeneous Fenton-like reactions using O-2 as the sole oxidant have gained attention for organic contaminant degradation in soils and groundwaters. The reactive species produced upon air oxidation of Fe-(II)-bearing oxide and sulfide mineral phases may deserve further research.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Pierre Lefebvre, Arnaud Mangeret, Alkiviadis Gourgiotis, Pascale Louvat, Pierre Le Pape, Pierre Sabatier, Olivier Diez, Charlotte Cazala, Jerome Gaillardet, Guillaume Morin
Summary: Understanding the U cycle at the watershed scale is crucial for managing contaminated areas and conducting research on ore formation processes and paleoenvironments. Through chemical, isotopic, and speciation analyses, we investigated the U cycle in the U-rich Lake Negre watershed in France. Our findings reveal that U(VI) originates from U-rich rock fractures and is transported in dissolved forms, with wetlands and meadow soils acting as intermediate sinks. Additionally, U is supplied to the lake through physical erosion of soil, and sedimentation in the lake reduces U(VI) to U(IV), resulting in high sedimentary U concentrations.
ACS EARTH AND SPACE CHEMISTRY
(2023)