chemotropism

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chemotropism

 [ke-mot´ro-pizm]
tropism elicited by chemical stimulation.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

che·mo·tax·is

, positive chemotaxisnegative chemotaxis (kē'mo-tak'sis),
1. Movement of cells or organisms in response to chemicals, whereby the cells are attracted (positive chemotaxis) or repelled (negative chemotaxis) by substances exhibiting chemical properties.
2. The migration of polymorphonuclear leukocytes and macrophages toward higher concentrations of certain fragments of complement.
[chemo- + G. taxis, orderly arrangement]
Farlex Partner Medical Dictionary © Farlex 2012

chemotropism

(kĭ-mŏt′rə-pĭz′əm)
n.
Movement or growth of an organism or part of an organism in response to a chemical stimulus.

che′mo·tro′pic (kē′mō-trō′pĭk, kĕm′ō-) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

che·mo·tax·is

, positive chemotaxis , negative chemotaxis (kē'mō-tak'sis, pozi-tiv, negă-tiv)
Movement of cells or organisms in response to chemicals.
Synonym(s): chemotropism.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

chemotropism

a directional growth response in plants in relation to a directional chemical stimulus. An example is the growth of the pollen tube after pollination, perhaps due to a chemical substance in the stigma.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
As the dipolar relaxation time constant of water molecules in the hydration shell is different from that in bulk water, the hydration shell absorption will be lower or higher compared to bulk water depending on whether the biomolecule is chemotropic (slower water molecules in the hydration shell) or chaotropic (faster water molecules in the hydration shell).
Several methods of nucleic acid isolation have been developed, i.e., extraction based on the method described by Boom, (19) which uses the principle of adsorption of nucleic acids to silica matrices in the presence of "chemotropic salts" and alcohol.
Lysis buffers based on chemotropic agents such as guanidine salts, however, interfere with subsequent hybridization and target capture.
Thus, it would appear that gravitropic responses and chemotropic responses to low and high P status soil influence the architecture of the root system and root hair development.
Carboxysomes are the protein bodies of many chemotropic and phototrophic bacteria that enhance the catalytic properties of the resident enzyme, riboluse-1,5 bisphosphate carboxylase/oxygenase, by an as yet ill-defined mechanism.
TGF-b1 inhibits proliferation and has a chemotropic effect on mouse primordial germ cells in culture.