منابع مشابه
Chemotaxis by local steering
Bugs get decrepit too here is no escape. Even the lowly Escherichia coli, which at first glance seems to go on dividing symmetrically and forever, ages over time, according to Eric Stewart, Fran-çois Taddei (Inserm, Paris, France), and colleagues. There was hope for E. coli immortality because the bug lacked obvious asymmetries. Organisms that age tend to segregate damaged molecules preferentia...
متن کاملObject Recognition based on Local Steering Kernel and SVM
The proposed method is to recognize objects based on application of Local Steering Kernels (LSK) as Descriptors to the image patches. In order to represent the local properties of the images, patch is to be extracted where the variations occur in an image. To find the interest point, Wavelet based Salient Point detector is used. Local Steering Kernel is then applied to the resultant pixels, in ...
متن کاملLocal translation and directional steering in axons.
The assembly of functional neural circuits in the developing brain requires neurons to extend axons to the correct targets. This in turn requires the navigating tips of axons to respond appropriately to guidance cues present along the axonal pathway, despite being cellular 'outposts' far from the soma. Work over the past few years has demonstrated a critical role for local translation within th...
متن کاملChemotaxis by polymorphonuclear leukocytes
The ability of a cell or organism to direct its movement along a chemical gradient has fascinated biologists for over 100 yr. This process of chemotaxis requires transformation of directional information from the environment into a series of cellular responses resulting in directional movement. Many lower organisms including bacteria, protozoa, and slime molds exhibit chemotaxis. This ability h...
متن کاملChemotaxis by Pseudomonas aeruginosa.
Chemotaxis by Pseudomonas aeruginosa RM46 has been studied, and conditions required for chemotaxis have been defined, by using the Adler capillary assay technique. Several amino acids, organic acids, and glucose were shown to be attractants of varying effectiveness for this organism. Ethylenediaminetetraacetic acid was absolutely required for chemotaxis, and magnesium was also necessary for a m...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2005
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb1685rr2