Search Results - "HELLWEGER, Ferdi L"

Carrying photosynthesis genes increases ecological fitness of cyanophage in silico by Hellweger, Ferdi L

“…Several viruses infecting marine cyanobacteria carry photosynthesis genes (e.g. psbA, hli) that are expressed, yield proteins (D1, HLIP) and help maintain the…”
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Emergent ecology in a microscale model of the surface ocean by Eigemann, Falk, Hoffmann, Jutta, Schampera, Charlotte, Liu, Shuting, Bolaños, Luis M, Heemeyer, Mats, Carlson, Craig A, Giovannoni, Stephen, Hellweger, Ferdi L

“…Microbial processes operate at the microscale, which is not resolved by existing ecosystem models. Here, we present a novel model that simulates a 1 mL…”
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Episodic Decrease in Temperature Increases mcy Gene Transcription and Cellular Microcystin in Continuous Cultures of Microcystis aeruginosa PCC 7806 by Martin, Robbie M, Moniruzzaman, Mohammad, Stark, Gwendolyn F, Gann, Eric R, Derminio, Dominique S, Wei, Bofan, Hellweger, Ferdi L, Pinto, Ameet, Boyer, Gregory L, Wilhelm, Steven W

“…Microcystins produced during harmful cyanobacterial blooms are a public health concern. Although patterns are emerging, the environmental cues that stimulate…”
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SAR11 Cells Rely on Enzyme Multifunctionality To Metabolize a Range of Polyamine Compounds by Noell, Stephen E, Barrell, Gregory E, Suffridge, Christopher, Morré, Jeff, Gable, Kevin P, Graff, Jason R, VerWey, Brian J, Hellweger, Ferdi L, Giovannoni, Stephen J

“…In the ocean surface layer and cell culture, the polyamine transport protein PotD of SAR11 bacteria is often one of the most abundant proteins detected…”
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From Genes to Ecosystems in Microbiology: Modeling Approaches and the Importance of Individuality by Kreft, Jan-Ulrich, Plugge, Caroline M, Prats, Clara, Leveau, Johan H J, Zhang, Weiwen, Hellweger, Ferdi L

“…Models are important tools in microbial ecology. They can be used to advance understanding by helping to interpret observations and test hypotheses, and to…”
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Editorial: The Individual Microbe: Single-Cell Analysis and Agent-Based Modelling by Leveau, Johan H J, Hellweger, Ferdi L, Kreft, Jan-Ulrich, Prats, Clara, Zhang, Weiwen

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Mighty small: Observing and modeling individual microbes becomes big science by Kreft, Jan-Ulrich, Plugge, Caroline M., Grimm, Volker, Prats, Clara, Leveau, Johan H. J., Banitz, Thomas, Baines, Stephen, Clark, James, Ros, Alexandra, Klapper, Isaac, Topping, Chris J., Field, Anthony J., Schuler, Andrew, Litchman, Elena, Hellweger, Ferdi L.

“…Progress in microbiology has always been driven by technological advances, ever since Antonie van Leeuwenhoek discovered bacteria by making an improved…”
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The Role of Ocean Currents in the Temperature Selection of Plankton: Insights from an Individual-Based Model by Hellweger, Ferdi L, van Sebille, Erik, Calfee, Benjamin C, Chandler, Jeremy W, Zinser, Erik R, Swan, Brandon K, Fredrick, Neil D

“…Biogeography studies that correlate the observed distribution of organisms to environmental variables are typically based on local conditions. However, in…”
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Genome reduction occurred in early Prochlorococcus with an unusually low effective population size by Zhang, Hao, Hellweger, Ferdi L, Luo, Haiwei

“…In the oligotrophic sunlit ocean, the most abundant free-living planktonic bacterial lineages evolve convergently through genome reduction. The cyanobacterium…”
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Nitrogen availability controls response of microcystin concentration to phosphorus reduction: Evidence from model application to multiple lakes by Schampera, Charlotte, Hellweger, Ferdi L.

“…•Model reproduces observations of Microcystis toxic fraction and MC concentrations.•High DIN and light availability increase toxigenic fraction and MC…”
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Carbon limitation drives GC content evolution of a marine bacterium in an individual-based genome-scale model by Hellweger, Ferdi L, Huang, Yongjie, Luo, Haiwei

“…An important unanswered question in evolutionary genomics is the source of considerable variation of genomic base composition (GC content) even among organisms…”
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Heterotrophic substrate specificity in the aquatic environment: The role of microscale patchiness investigated using modelling by Hellweger, Ferdi L.

“…Summary Recent observations of natural bacterial communities show high genetic diversity in organic carbon uptake systems (microdiversity) and specificity in…”
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Modeling the Effect of Algal Dynamics on Arsenic Speciation in Lake Biwa by Hellweger, Ferdi L, Lall, Upmanu

“…Algae reduce and methylate arsenate and the end product of the reaction is correlated to their growth rate. At slow growth rates, dimethylarsinate (DMA) is…”
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Models predict planned phosphorus load reduction will make Lake Erie more toxic by Hellweger, Ferdi L, Martin, Robbie M, Eigemann, Falk, Smith, Derek J, Dick, Gregory J, Wilhelm, Steven W

“…Harmful cyanobacteria are a global environmental problem, yet we lack actionable understanding of toxigenic versus nontoxigenic strain ecology and toxin…”
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Combining Molecular Observations and Microbial Ecosystem Modeling: A Practical Guide by Hellweger, Ferdi L

“…Advances in technologies for molecular observation are leading to novel types of data, including gene, transcript, protein, and metabolite levels, which are…”
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Biogeographic patterns in ocean microbes emerge in a neutral agent-based model by Hellweger, Ferdi L., van Sebille, Erik, Fredrick, Neil D.

“…A key question in ecology and evolution is the relative role of natural selection and neutral evolution in producing biogeographic patterns. We quantify the…”
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Use of Agent-Based Modeling To Explore the Mechanisms of Intracellular Phosphorus Heterogeneity in Cultured Phytoplankton by FREDRICK, Neil D, BERGES, John A, TWINING, Benjamin S, NUÑEZ-MILLAND, Daliangelis, HELLWEGER, Ferdi L

“…Classifications Services AEM Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley Reddit…”
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Advancing microbial sciences by individual-based modelling by Hellweger, Ferdi L., Clegg, Robert J., Clark, James R., Plugge, Caroline M., Kreft, Jan-Ulrich

“…In this Opinion article, Kreft and colleagues discuss how the combination of individual-based observations with individual-based models (IBMs) can lead to the…”
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Internal carbon recycling by heterotrophic prokaryotes compensates for mismatches between phytoplankton production and heterotrophic consumption by Eigemann, Falk, Tait, Karen, Temperton, Ben, Hellweger, Ferdi L

“…Molecular observational tools are useful for characterizing the composition and genetic endowment of microbial communities but cannot measure fluxes, which are…”
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A Reduction of Transcriptional Regulation in Aquatic Oligotrophic Microorganisms Enhances Fitness in Nutrient-Poor Environments by Noell, Stephen E, Hellweger, Ferdi L, Temperton, Ben, Giovannoni, Stephen J

“…In this review, we consider the regulatory strategies of aquatic oligotrophs, microbial cells that are adapted to thrive under low-nutrient concentrations in…”
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