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Chemotaxis (from chemo-+ taxis) is the movement of an organism or entity in response to a chemical stimulus. [1] Somatic cells, bacteria, and other single-cell or ...
Realizing that chemotaxis is a short-range process, operating over only a few millimetres, [5] Eisenbach looked for a long-range navigation process and discovered thermotaxis. His group found that human, rabbit and mouse spermatozoa can navigate in a temperature gradient by thermotaxis and that, as in chemotaxis, only capacitated cells are ...
Chemotaxis assays are experimental tools for evaluation of chemotactic ability of prokaryotic or eukaryotic cells. A wide variety of techniques have been developed. A wide variety of techniques have been developed.
Adler eventually discovered that E. coli contain several MCPs which play important roles in chemotaxis sensory transduction system. Strains of bacteria without this protein, or lacking the ability to methylate and demethylate them were unable to respond to stimuli.
Sperm chemotaxis is a form of ... In view of the increasing number of different chemoattractants that are being discovered, the physiology of chemotaxis in vivo might ...
The response of spermatozoa to temporal temperature changes even when the temperature is kept constant spatially [10] suggests that, as in the case of human sperm chemotaxis, [12] [13] sperm thermotaxis involves temporal gradient sensing. In other words, spermatozoa apparently compare the temperature (or a temperature-dependent function ...
In addition to being known for mediating chemotaxis, ... (or d-chemokines). The only CX 3 C chemokine discovered to date is called fractalkine (or CX 3 CL1).
Since the discovery of sperm attraction to the female gametes in ferns over a century ago, [1] sperm guidance in the form of sperm chemotaxis has been established in a large variety of species [2] Although sperm chemotaxis is prevalent throughout the Metazoa kingdom, from marine species with external fertilization such as sea urchins and corals, to humans, [2] [3] [4] much of the current ...