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  • Other Sources  (8)
  • Cell Press
  • Institute of Physics
  • Irkutsk : Ross. Akad. Nauk, Sibirskoe Otd., Inst. Zemnoj Kory
  • Krefeld : Geologischer Dienst Nordhein-Westfalen
  • 2020-2024  (6)
  • 2005-2009  (2)
  • 1965-1969
  • 1940-1944
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  • 1
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    Antiphage small molecules produced by bacteria – beyond protein-mediated defenses (2023)
    Cell Press
    Details
    Publication Date: 2024-01-08
    Description: Bacterial populations face the constant threat of viral predation exerted by bacteriophages (‘phages’). In response, bacteria have evolved a wide range of defense mechanisms against phage challenges. Yet the vast majority of antiphage defense systems described until now are mediated by proteins or RNA complexes acting at the single-cell level. Here, we review small molecule-based defense strategies against phage infection, with a focus on the antiphage molecules described recently. Importantly, inhibition of phage infection by excreted small molecules has the potential to protect entire bacterial communities, highlighting the ecological significance of these antiphage strategies. Considering the immense repertoire of bacterial metabolites, we envision that the list of antiphage small molecules will be further expanded in the future.
    Type: Article , PeerReviewed
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  • 2
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    Near-term deployment of novel carbon removal to facilitate longer-term deployment (2023)
    Cell Press
    Details
    Publication Date: 2024-01-08
    Description: Scenarios—which account for the costs of and interactions among different mitigation options—show that we will need to remove hundreds of gigatons of carbon dioxide (CO2) from the atmosphere over the course of the century to limit warming to well below 2°C, make efforts to limit it to 1.5°C, and ensure the sustained well-being of our planet. Yet at present, only 2 Gt is being removed per year, and nearly all of it is from forestry—only 0.1% is from novel forms of carbon removal. This commentary shows that the deployment of novel CO2 removal (CDR) over the next decade, its formative phase, is likely to be consequential in determining whether CDR will be available at scale and in time to reach net-zero CO2 emissions consistent with the Paris Agreement’s temperature goal.
    Type: Article , PeerReviewed
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  • 3
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    Metabolic interactions shape a community's phenotype (2022)
    Cell Press
    Details
    Publication Date: 2024-01-08
    Description: Metabolic interactions between auxotrophs and prototrophs in microbial communities are understudied. Yu et al. showed how intracellular as well as intercellular metabolism affects community fitness in the absence and presence of abiotic stress, that is, drugs.
    Type: Article , PeerReviewed
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  • 4
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    Seafloor integrity versus critical metal supply (2021)
    Elsevier | Cell Press
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    Publication Date: 2023-10-06
    Type: Article , NonPeerReviewed
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  • 5
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    Evolution via somatic genetic variation in modular species (2021)
    Cell Press | Elsevier
    Details
    Publication Date: 2024-02-07
    Description: Highlights: Recent genomic data reveal that somatic genetic variation (SoGV) is widespread, but evolutionary consequences of this within-organism level of genetic diversity are largely ignored. In modular plant, animal, and fungal species featuring somatic asexual (=clonal) reproduction and long life spans, the segregation of somatic variation into independent modules (ramets) may create phenotypic diversity subject to selection. Recent genomic data suggest that SoGV can be transferred into gametes in species with late-sequestered, transient germlines (all plants and fungi, some basal animals). Somatic evolution is nested within sexual reproduction and needs to be better integrated into population genetic theory for a large number of species encompassing plants, fungi, and basal animals. Somatic genetic variation (SoGV) may play a consequential yet underappreciated role in long-lived, modular species among plants, animals, and fungi. Recent genomic data identified two levels of genetic heterogeneity, between cell lines and between modules, that are subject to multilevel selection. Because SoGV can transfer into gametes when germlines are sequestered late in ontogeny (plants, algae, and fungi and some basal animals), sexual and asexual processes provide interdependent routes of mutational input and impact the accumulation of genetic load and molecular evolution rates of the integrated asexual/sexual life cycle. Avenues for future research include possible fitness effects of SoGV, the identification and implications of multilevel selection, and modeling of asexual selective sweeps using approaches from tumor evolution
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
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  • 6
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    A Roadmap for Using the UN Decade of Ocean Science for Sustainable Development in Support of Science, Policy, and Action (2020)
    Cell Press | Elsevier
    Details
    Publication Date: 2023-02-08
    Description: The health of the ocean, central to human well-being, has now reached a critical point. Most fish stocks are overexploited, climate change and increased dissolved carbon dioxide are changing ocean chemistry and disrupting species throughout food webs, and the fundamental capacity of the ocean to regulate the climate has been altered. However, key technical, organizational, and conceptual scientific barriers have prevented the identification of policy levers for sustainability and transformative action. Here, we recommend key strategies to address these challenges, including (1) stronger integration of sciences and (2) ocean-observing systems, (3) improved science-policy interfaces, (4) new partnerships supported by (5) a new ocean-climate finance system, and (6) improved ocean literacy and education to modify social norms and behaviors. Adopting these strategies could help establish ocean science as a key foundation of broader sustainability transformations.
    Type: Article , PeerReviewed
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  • 7
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    Magnetic particle hyperthermia: nanoparticle magnetism and materials development for cancer therapy (2006)
    Institute of Physics
    In:  Journal of Physics - Condensed Matter, 18 (38). S2919-S2934.
    Details
    Publication Date: 2020-07-20
    Description: Loss processes in magnetic nanoparticles are discussed with respect to optimization of the specific loss power (SLP) for application in tumour hyperthermia. Several types of magnetic iron oxide nanoparticles representative for different preparation methods (wet chemical precipitation, grinding, bacterial synthesis, magnetic size fractionation) are the subject of a comparative study of structural and magnetic properties. Since the specific loss power useful for hyperthermia is restricted by serious limitations of the alternating field amplitude and frequency, the effects of the latter are investigated experimentally in detail. The dependence of the SLP on the mean particle size is studied over a broad size range from superparamagnetic up to multidomain particles, and guidelines for achieving large SLP under the constraints valid for the field parameters are derived. Particles with the mean size of 18 nm having a narrow size distribution proved particularly useful. In particular, very high heating power may be delivered by bacterial magnetosomes, the best sample of which showed nearly 1 kW g−1 at 410 kHz and 10 kA m−1. This value may even be exceeded by metallic magnetic particles, as indicated by measurements on cobalt particles.
    Type: Article , PeerReviewed
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  • 8
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    In-depth analyses of marine microbial community genomics (2006)
    Cell Press
    In:  Trends in Microbiology, 14 (8). pp. 331-336.
    Details
    Publication Date: 2019-09-23
    Description: Marine microbes have evolved to live along extreme environmental gradients, whether at the microscale, in proximity to particles or over the entire water column. Using community genomics, DeLong et al. highlight deduced biological differences that result from open-ocean depth gradients. The power of the large-insert libraries used is that both phylogeny and function can be inferred from the genetic material obtained - even for uncultured microbes. Together with complete genomes of marine isolates and advances in physiology and ecology, this study paves the way for ecosystems biology approaches to dynamics and controls of marine microbial populations. © 2006 Elsevier Ltd. All rights reserved.
    Type: Article , PeerReviewed
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