Results 191 to 200 of about 42,607 (218)
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2023
Cilia and flagella are microtubule-based, rod-shaped organelles present on the surface of a variety of eukaryotic cells. They function in cell locomotion, flow of extracellular fluid across cell surfaces as well as in detection, transmission and integration of signals from the cellular surroundings.
Pedersen, Lotte Bang +3 more
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Cilia and flagella are microtubule-based, rod-shaped organelles present on the surface of a variety of eukaryotic cells. They function in cell locomotion, flow of extracellular fluid across cell surfaces as well as in detection, transmission and integration of signals from the cellular surroundings.
Pedersen, Lotte Bang +3 more
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Current Opinion in Microbiology, 2006
Flagellar gene networks are fascinating, owing to their complexity - they usually coordinate the expression of more than 40 genes - and particular wiring that elicits temporal expression coupled to organelle morphogenesis. Moreover, many of the lessons learned from flagellar regulation are generally applicable to type III secretion systems.
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Flagellar gene networks are fascinating, owing to their complexity - they usually coordinate the expression of more than 40 genes - and particular wiring that elicits temporal expression coupled to organelle morphogenesis. Moreover, many of the lessons learned from flagellar regulation are generally applicable to type III secretion systems.
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Disintegration of flagella by acid
Archives of Biochemistry and Biophysics, 1965Abstract During the disintegration of flagella from cells of Proteus vulgaris, hydrogen ions are taken up; thus one can determine the rate of this disintegration by measuring the number of hydrogen ions consumed at a constant pH. The rate of disintegration was studied in this manner over the pH range 2.5–3.4.
Allen Vegotsky +3 more
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Bacterial Flagella and Motility
Nature, 1948Flagella, and especially bacterial flagella, have been thoroughly investigated during the past decade. Before that they were rather taken for granted. This awakening of interest was largely due to the electron microscope referred to as the EM) which made them more real, and revealed new features, without solving their mysteries. Perhaps also, as Knaysi
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Functions of Bacterial Flagella
Critical Reviews in Microbiology, 1996Many bacterial species are motile by means of flagella. The structure and implantation of flagella seems related to the specific environments the cells live in. In some cases, the bacteria even adapt their flagellation pattern in response to the environmental conditions they encounter.
Sara Moens, Jos Vanderleyden
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2001
The bacterial flagellum is an apparatus of motility commonly found among motile species. The flagellum is a supramolecular structure composed of about 20 protein components and divided into three substructures: the filament, the hook and the basal body. The filament is a helix, which takes on several distinct forms under various conditions.
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The bacterial flagellum is an apparatus of motility commonly found among motile species. The flagellum is a supramolecular structure composed of about 20 protein components and divided into three substructures: the filament, the hook and the basal body. The filament is a helix, which takes on several distinct forms under various conditions.
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Undulipodia, flagella and cilia
Biosystems, 1980The term flagella is ambiguous. It refers to bacterial structures composed of flagellin protein and to eukaryotic structures composed of microtubule proteins and ATPase (tubulin and dynein). The fact that cilia are nearly identical to eukaryotic flagella and have nothing in common with prokaryotic flagella is not apparent from the terminology.
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The Quarterly Review of Biology, 1980
Most bacterial movement is the result of the action of a subcellular structure, the flagellar organelle. Bacterial flagella propel the cell by rotating, and this rotation is regulated in response to information transmitted by chemoreceptors on the surface of the cell. Rotation is driven by a motor anchored in the cell membrane.
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Most bacterial movement is the result of the action of a subcellular structure, the flagellar organelle. Bacterial flagella propel the cell by rotating, and this rotation is regulated in response to information transmitted by chemoreceptors on the surface of the cell. Rotation is driven by a motor anchored in the cell membrane.
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Flagella and bacterial pathogenicity
Journal of Basic Microbiology, 2012AbstractAs locomotive organelles, flagella allow bacteria to move toward favorable environments. A flagellum consists of three parts: the basal structure (rotary motor), the hook (universal joint), and the filament (helical propeller). For ages, flagella have been generally regarded as important virulence factors, mainly because of their motility ...
Qiangde Duan +3 more
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Construction of bacterial flagella
Nature, 1975The flagella of Salmonella can adopt a number of distinct helical forms. This article discusses the design of a subunit which packs to give a helical filament. Polymorphism is explained by small changes in the geometry of the subunit.
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