1,271 results found
    1. Ecology
    2. Physics of Living Systems

    Nutrient levels and trade-offs control diversity in a serial dilution ecosystem

    Amir Erez et al.
    Whereas theories of ecological diversity mostly consider continuously supplied nutrients, a seasonal model uncovers a general mechanism that controls diversity and reconciles conflicting experimental findings.
    1. Ecology

    Multistability and regime shifts in microbial communities explained by competition for essential nutrients

    Veronika Dubinkina et al.
    Multistability and regime shifts are common and species diversity is high in microbial communities when nutrient supplies are balanced and competing species have different stoichiometries of essential nutrients.
    1. Genetics and Genomics

    Drosophila serotonin 2A receptor signaling coordinates central metabolic processes to modulate aging in response to nutrient choice

    Yang Lyu et al.
    Dietary choice per se is sufficient to modulate aging in Drosophila and through serotonergic control of peripheral metabolism.
    1. Computational and Systems Biology
    2. Ecology

    Nutrient dominance governs the assembly of microbial communities in mixed nutrient environments

    Sylvie Estrela et al.
    There are regularities in how specific nutrients combine together to shape the taxonomic composition of self-assembled communities, with some types of nutrients dominating other types.
    1. Neuroscience

    Internal states drive nutrient homeostasis by modulating exploration-exploitation trade-off

    Verónica María Corrales-Carvajal et al.
    A quantitative video tracking analysis reveals that to gain the nutrients they need, flies change their decisions to exploit foods with different nutrient contents and explore the environment according to their internal amino acid and reproductive states.
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    Quantification of microenvironmental metabolites in murine cancers reveals determinants of tumor nutrient availability

    Mark R Sullivan et al.
    The nutrients available in some tumors and the factors that influence tumor nutrient availability are characterized, which provides insight into the metabolic constraints of the tumor microenvironment.
    1. Ecology

    Biodiversity mediates the effects of stressors but not nutrients on litter decomposition

    Léa Beaumelle et al.
    The consequences of real-world biodiversity change for ecosystem functioning depend on the type of global change driver and can be particularly significant when human activities decrease biodiversity.
    1. Cell Biology
    2. Developmental Biology

    Nutrient restriction enhances the proliferative potential of cells lacking the tumor suppressor PTEN in mitotic tissues

    Katarzyna Nowak et al.
    Nutrient limitation elicits differential responses in cells lacking the tumor suppressor PTEN and in normal cells, resulting in hyperplastic overgrowth of PTEN mutant tissue independent of additional mutations.
    1. Cell Biology

    The yeast H+-ATPase Pma1 promotes Rag/Gtr-dependent TORC1 activation in response to H+-coupled nutrient uptake

    Elie Saliba et al.
    The H+ influx coupled to nutrient uptake and the plasma membrane H+-ATPase are central actors of the activation of target of rapamycin complex 1 (TORC1) in budding yeast Saccharomyces cerevisiae..
    1. Cell Biology
    2. Microbiology and Infectious Disease

    An essential dual-function complex mediates erythrocyte invasion and channel-mediated nutrient uptake in malaria parasites

    Daisuke Ito et al.
    Gene knockdowns reveal that the conserved RhopH protein complex functions in both host cell invasion and channel-mediated nutrient uptake in malaria.

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