positive chemotaxis

positive chemotaxis
Chemotaxis Chem`o*tax"is, n. Formerly also Chemiotaxis Chem`i*o*tax"is [Chemical + Gr. ? arrangement, fr. ? to arrange.] (Biol.) The sensitiveness exhibited by small free-swimming organisms, as bacteria, zo["o]spores of alg[ae], etc., to chemical substances held in solution. They may be attracted ({positive chemotaxis}) or repelled ({negative chemotaxis}). -- {Chem`o*tac"tic}, a. -- {Chem`o*tac"tic*al*ly}, adv. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • positive chemotaxis — noun movement toward a chemical stimulus • Hypernyms: ↑chemotaxis …   Useful english dictionary

  • positive chemotaxis — movement of a cell or organism from an area of lower concentration of a chemical to an area of higher concentration …   Medical dictionary

  • Chemotaxis — is the phenomenon in which somatic cells, bacteria, and other single cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (for example, glucose) by …   Wikipedia

  • Chemotaxis — Chem o*tax is, n. Formerly also Chemiotaxis Chem i*o*tax is [Chemical + Gr. ? arrangement, fr. ? to arrange.] (Biol.) The sensitiveness exhibited by small free swimming organisms, as bacteria, zo[ o]spores of alg[ae], etc., to chemical substances …   The Collaborative International Dictionary of English

  • Chemotaxis — Übergeordnet Taxis Antwort auf chemischen Stimulus Untergeordnet positive/negative zelluläre Chemotaxis Axonlenk …   Deutsch Wikipedia

  • Chemotaxis — Che|mo|tạ|xis 〈[ çe ] f.; , ta|xen od. ta|xi|en〉 Anlockung (positive Chemotaxis) od. Abstoßung (negative Chemotaxis) von saprophytischen od. pathogenen Bakterien, Gameten von Algen u. Pilzen sowie Spermatozoiden höherer Pflanzen durch bestimmte… …   Universal-Lexikon

  • chemotaxis — n.; pl. taxes [Gr. chemeia, pert. chemistry; taxis, arrangement] Movement of a motile organism or cell in response to chemical stimulus. a. Positive chemotaxis: movement toward the stimulus; chemotropism. b. Negative chemotaxis: movement from the …   Dictionary of invertebrate zoology

  • chemotaxis — noun movement by a cell or organism in reaction to a chemical stimulus • Hypernyms: ↑taxis • Hyponyms: ↑negative chemotaxis, ↑positive chemotaxis …   Useful english dictionary

  • Chemotaxis assay — Chemotaxis assays are experimental tools for evaluation of chemotactic ability of prokaryotic or eukaryotic cells. A wide variety of techniques are known and applied for such reason. Some of them qualitative and investigator can determine whether …   Wikipedia

  • chemotaxis — [kē΄ōtak′sis, kem΄ōtaks′is] n. [ModL: see CHEMO & TAXIS] the positive or negative response of certain living cells and organisms to a chemical chemotactic [kē΄ōtak′tik, kem΄ōtak′tik] adj. chemotactically adv …   English World dictionary

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