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Articles by Christopher Rensing
Antibiotic contamination stimulates microbial methylmercury synthesis in rice paddies
Abstract Antibiotic residues are now widespread in agricultural soils, yet their influence on microbe-mediated mercury (Hg) transformations and associated risks is poorly understood. Here, we demonstrate that fluoroquinolone (FQ) antibiotics enhance the production of neurotoxic methylmercury (MeHg) in paddy soils by selectively altering microbial metabolic activity.
Marine arsenate evolution during Proterozoic oxygenation events and implications for biological phosphate metabolism
Abstract Earth’s atmosphere and oceans experienced two major episodes of ocean-atmosphere oxygenation that transformed the planet and shaped the evolution of the oxygen-rich biosphere between 2.45 and 0.541 billion years ago (Ga). These changes increased the abundance of oxidized chemicals in seawater, but their distribution and effects on the availability and utilization of essential nutrients remain poorly understood.
Microbial electrosensing: wiring ecology to biotechnology
Keywords EC EF time-varying field electrosensing electrobiotechnology Get full text access Log in, subscribe or purchase for full access. References 1. Zhang, D. ... Microbial electrotaxis: rewiring environmental microbiomes Trends Microbiol. 2025; 33:989-1002 2. Dima, P. ... Electro-interactions: a review of the effects of electric fields on bacterial cells Biotechnol. Adv. 2025; 85, 108711 3. Li, Y.R. ... Self-assembly of bacteria in alternating-current electric fields Chin. Phys. Lett. 2024; 41, 108701 4.
A curated global dataset of naturally occurring aphid-fungal associations
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Abstract As key components of terrestrial ecosystems, fungi play vital roles in ecological processes and functions, and are associated with innumerable plant, vertebrate, and arthropod taxa. Among arthropod taxa, aphids (Hemiptera) are commonly found in both natural and agricultural ecosystems, where some species cause substantial crop damage.
By Ibtissem Ben Fekih, Gabor Pozsgai, Jørgen Eilenberg, Annette Jensen, Kris Wyckhuys, Siegfried Keller, Ikbal Chaieb, Jiaxin Dai, Francisco Sánchez-García, Wenxiang Chen, Mark S. Goettel, Gabor L. Lövei, Minsheng You, Shijun You, Christopher Rensing, Malgorzata Ruszkiewicz-Michalska, Markus V. Kohnen, Sohaib H. Mazhar
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Nature
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Long-term selection for extended lifespan reshapes host physiology and gut microbiome structure in an insect model
Abstract Longevity results from complex interactions between genetic, physiological, and environmental factors, however, the contribution of the gut microbiome to lifespan evolution is still poorly understood, especially in insects. In the present study, we tested whether long-term selection for delayed reproduction and extended lifespan can be associated with restructuring of the gut microbiome in the house cricket (Acheta domesticus).
Three Fe(III)-reducing and nitrogen-fixing bacteria, Anaeromyxobacter terrae sp. nov., Anaeromyxobacter oryzisoli sp. nov. and Anaeromyxobacter soli sp. nov., isolated from paddy soil
Article metrics loading... /content/journal/ijsem/10.1099/ijsem.0.006268 References Ishii S, Ikeda S, Minamisawa K, Senoo K. Nitrogen cycling in rice paddy environments: past achievements and future challenges. Microbes Environ 2011; 26:282–292 [View Article] [PubMed] [Google Scholar] Masuda Y, Shiratori Y, Ohba H, Ishida T, Takano R et al. Enhancement of the nitrogen-fixing activity of paddy soils owing to iron application.
Symbiotic Bacteria Modulate Lymantria dispar Immunity by Altering Community Proportions after Infection with LdMNPV
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by 1, 2 and 1,* 1 State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling 712100, China 2 Institute of Environmental Microbiology, College of Resource and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China * Author to whom correspondence should be addressed. Int. J. Mol. Sci.
Syntrophic interspecies electron transfer drives carbon fixation and growth by Rhodopseudomonas palustris under dark, anoxic conditions
Abstract In natural anoxic environments, anoxygenic photosynthetic bacteria fix CO2 by photoheterotrophy, photoautotrophy, or syntrophic anaerobic photosynthesis. Here, we describe electroautotrophy, a previously unidentified dark CO2 fixation mode enabled by the electrosyntrophic interaction between Geobacter metallireducens and Rhodopseudomonas palustris. After an electrosyntrophic coculture is formed, electrons are transferred either directly or indirectly (via electron shuttles) from G.
AsChip: A High-Throughput qPCR Chip for Comprehensive Profiling of Genes Linked to Microbial Cycling of Arsenic
Top of Page Abstract Introduction Materials and Methods Results and Discussion References Introduction Arsenic (As) is a ubiquitous toxic element impacting human health.(1) It is present in the atmosphere, hydrosphere, pedosphere, and biosphere with both natural and anthropogenic origins.(2−5) Arsenic in the environment primarily poses health risks to humans via water(6) or food(7−9) and has been linked to various cancers,(10) cardiovascular disease,(11) diabetes,(12) and skin lesions.(13)...
Efflux Transporter ArsK Is Responsible for Bacterial Resistance to Arsenite, Antimonite, Trivalent Roxarsone, and Methylarsenite
ABSTRACT Arsenic-resistant bacteria have evolved various efflux systems for arsenic resistance. Five arsenic efflux proteins, ArsB, Acr3, ArsP, ArsJ, and MSF1, have been reported. In this study, comprehensive analyses were performed to study the function of a putative major facilitator superfamily gene, arsK, and the regulation of arsK transcriptional expression in Agrobacterium tumefaciens GW4. We found that (i) arsK is located on an arsenic gene island in strain GW4.
A novel efflux transporter, ArsK, is responsible for bacterial resistance to arsenite, antimonite, trivalent roxarsone and methylarsenite
ABSTRACTArsenic-resistant bacteria have evolved various efflux systems for arsenic resistance. Five arsenic efflux proteins, ArsB, Acr3, ArsP, ArsJ and MSF1, have been reported. In this study, comprehensive analyses were performed to study the function of a putative major facilitator superfamily gene arsK and the regulation of arsK transcriptional expression in Agrobacterium tumefaciens GW4.
Metallic Copper as an Antimicrobial Surface
School of Biological Sciences, University of Nebraska—Lincoln, Lincoln, Nebraska,1 Department of Soil, Water, and Environmental Science, University of Arizona, Tucson, Arizona,2 Dept. of Clinical Pharmacology, University of Bern, Bern, Switzerland3 School of Biological Sciences, University of Nebraska—Lincoln, Lincoln, Nebraska,1 Department of Soil, Water, and Environmental Science, University of Arizona, Tucson, Arizona,2 Dept.
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