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chemotropism Syllabification: che·mot·ro·pism

Entry from US English dictionary

Definition of chemotropism in English:


A tropism, especially of a plant, in response to a particular substance.
Example sentences
  • Studies of chemotropism in yeast revealed important differences in the identity of the sensory pathways involved in gradient sensing in D. discoideum and Saccharomyces cerevisiae.
  • But the notion of chemotropism came to fruition only a decade later in the context of nerve regeneration.
  • Here a complicated set of tropisms is involved from thigmotropism, or response to touch when the insect lights on the leaf, to a chemotropism in the secreting of digestive juices.


Pronunciation: /ˌkēmōˈträpik/ /ˌkemō-/ /-ˈtrō-/
Example sentences
  • A computational account of these results is proposed, based on a unified model that combines chemotropic gradients and spike-time-dependent synaptic plasticity.
  • Inhibition of this local protein synthesis blocks the turning responses of growth cones in a chemotropic gradient suggesting that local synthesis is involved in directional steering.
  • Although they have been shown to function in nerve growth cones, the new studies [1,2] are the first to demonstrate that they have a role in chemotropic axon guidance.
Pronunciation: /-ik(ə)lē/
Example sentences
  • Hunger, for example, calls out motion through changes produced by katabolism in the organism, whereby it is attracted chemotropically to food.
  • Upon germination, broomrape seeds develop a small radicle that grows chemotropically towards host roots and firmly connects to a host rootlet.
  • If the axon reorients towards or away from the pipette it suggests that the molecule acts chemotropically to influence axon behavior.
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