524 results found
    1. Plant Biology

    Fluctuations of the transcription factor ATML1 generate the pattern of giant cells in the Arabidopsis sepal

    Heather M Meyer et al.
    Fluctuations of a transcription factor that coincide with the G2 phase of the cell cycle pattern two interspersed cell fates in a multicellular system.
    1. Microbiology and Infectious Disease

    Septal secretion of protein A in Staphylococcus aureus requires SecA and lipoteichoic acid synthesis

    Wenqi Yu et al.
    Surface protein precursors traffic to lipoteichoic acid-rich septal membranes of Staphylococcus aureus for cleavage of their YSIRK-GXXS motif signal peptides and SecA-mediated translocation across the plasma membrane.
    1. Ecology
    2. Microbiology and Infectious Disease

    Immune-mediated hookworm clearance and survival of a marine mammal decrease with warmer ocean temperatures

    Mauricio Seguel et al.
    In years with colder ocean temperatures, fur seal pups receive more maternal care and have a better energy balance, clearing hookworm infection earlier, which increases their chances of survival.
    1. Neuroscience

    Somatostatin-positive interneurons in the dentate gyrus of mice provide local- and long-range septal synaptic inhibition

    Mei Yuan et al.
    Somatostatin-expressing interneurons of the rodent dentate gyrus fall into at least two functionally distinct interneuron types with different synaptic integrations into the local dentate gyrus and the more distant medial septum neuronal network.
    1. Neuroscience

    AANAT1 functions in astrocytes to regulate sleep homeostasis

    Sejal Davla et al.
    Drosophila astrocytes regulate the homeostatic response to sleep need and express the AANAT1 enzyme that limits brain accumulation of serotonin and dopamine caused by overnight sleep deprivation.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    A novel ciprofloxacin-resistant subclade of H58 Salmonella Typhi is associated with fluoroquinolone treatment failure

    Duy Pham Thanh et al.
    A fluoroquinolone resistant variant of Salmonella Typhi has emerged that is likely to be widespread in the Indian subcontinent; therefore fluoroquinolones should not be recommended for empirical typhoid fever therapy in this setting.
    1. Cell Biology

    An ESCRT-LEM protein surveillance system is poised to directly monitor the nuclear envelope and nuclear transport system

    David J Thaller et al.
    ESCRT-driven mechanisms that sense and seal holes in the nuclear membranes directly monitor the nuclear transport system and the exposure of the inner nuclear membrane.
    1. Developmental Biology

    Hox-dependent coordination of mouse cardiac progenitor cell patterning and differentiation

    Sonia Stefanovic et al.
    Discovering that Hoxb1 acts as a repressor of cardiac differentiation on second heart field progenitor cells helps us to understand the etiology of congenital heart defects such as atrioventricular septal defects.
    1. Cell Biology
    2. Developmental Biology

    Philosophy of Biology: The analysis of living systems can generate both knowledge and illusions

    Antony M Jose
    By thinking about experimental techniques in terms of six broad approaches – perturbation, visualization, substitution, characterization, reconstitution, and simulation – researchers may be able to generate more reliable inferences.

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