Bacterial Swarming: A Re-examination of Cell-Movement Patterns
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منابع مشابه
Bacterial Swarming: A Re-examination of Cell-Movement Patterns
Many bacteria simultaneously grow and spread rapidly over a surface that supplies them with nutrient. Called 'swarming', this pattern of movement directs new cells to the edge of the colony. Swarming reduces competition between cells for nutrients, speeding growth. Behind the swarm edge, where the cell density is higher, growth is limited by transport of nutrient from the subsurface to the over...
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CURRENT SCIENCE, VOL. 83, NO. 6, 25 SEPTEMBER 2002 707 *For correspondence. (e-mail: [email protected]) congestion in the cities. Similarly, in zoos, university campuses and areas of tourist attraction like heritage sites, these rickshaws should be encouraged. 2. Since both MAPRA and IMPRA are environmentally sound and user-friendly vehicles, they should get all the financial benefits avai...
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We determine and relate the characteristic velocity, length, and time scales for bacterial motion in swarming colonies of Paenibacillus dendritiformis growing on semi-solid agar substrates. The bacteria swim within a thin fluid layer, and they form long-lived jets and vortices. These coherent structures lead to anisotropy in velocity spatial correlations and to a two-step relaxation in velocity...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2007
ISSN: 0960-9822
DOI: 10.1016/j.cub.2007.04.050