chemotropism

che·mot·ro·pism

C0273400 (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.

chemotropism

(ˌkɛməʊˈtrəʊˌpɪzəm) n (Biology) the growth response of an organism, esp a plant, to a chemical stimulus chemotropic adj ˌchemoˈtropically adv

che•mot•ro•pism

(kɪˈmɒ trəˌpɪz əm)

n. oriented growth or movement in response to a chemical stimulus. [1895–1900] che•mo•trop•ic (ˌki məˈtrɒp ɪk, -ˈtroʊ pɪk, ˌkɛm ə-) adj. che`mo•trop′i•cal•ly, adv.

chemotropism

growth or motion in response to a chemical stimulus. — chemotropic, adj.See also: Biology, Growth

growth or motion in response to a chemical stimulus. — chemotropic, adj.See also: Motion

Translations

Chemotropism

chemotropism

[‚kē·mō′trō‚piz·əm] (biology) Orientation response of a sessile organism with reference to chemical stimuli.

Chemotropism

change in the direction of growth of plant organs under the influence of chemical substances acting in one direction. Like other tropisms, chemotropism results from the uneven growth of opposite sides of an organ. Many substances that stimulate positive chemotropism in low concentrations (growth of organs in the direction of the chemical stimulus) may cause negative chemotropism in high concentrations (growth of organs in the direction opposite the stimulus). Chemotropism occurs in the growth of pollen tubules toward the ovules, in the penetration of the tissue of the host plant by the hyphae of parasitic fungi, and in the growth of roots toward particles or granules of fertilizer.

chemotropism

[ke-mot´ro-pizm] tropism elicited by chemical stimulation.

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. Synonym(s): chemiotaxis, chemotropism [chemo- + G. taxis, orderly arrangement]

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.

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.

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.

单词	chemotropism
释义	chemotropism che·mot·ro·pism C0273400 (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. chemotropism (ˌkɛməʊˈtrəʊˌpɪzəm) n (Biology) the growth response of an organism, esp a plant, to a chemical stimulus chemotropic adj ˌchemoˈtropically adv che•mot•ro•pism (kɪˈmɒ trəˌpɪz əm) n. oriented growth or movement in response to a chemical stimulus. [1895–1900] che•mo•trop•ic (ˌki məˈtrɒp ɪk, -ˈtroʊ pɪk, ˌkɛm ə-) adj. che`mo•trop′i•cal•ly, adv. chemotropism growth or motion in response to a chemical stimulus. — chemotropic, adj.See also: Biology, Growth growth or motion in response to a chemical stimulus. — chemotropic, adj.See also: Motion Translations Chemotropism chemotropism [‚kē·mō′trō‚piz·əm] (biology) Orientation response of a sessile organism with reference to chemical stimuli. Chemotropism change in the direction of growth of plant organs under the influence of chemical substances acting in one direction. Like other tropisms, chemotropism results from the uneven growth of opposite sides of an organ. Many substances that stimulate positive chemotropism in low concentrations (growth of organs in the direction of the chemical stimulus) may cause negative chemotropism in high concentrations (growth of organs in the direction opposite the stimulus). Chemotropism occurs in the growth of pollen tubules toward the ovules, in the penetration of the tissue of the host plant by the hyphae of parasitic fungi, and in the growth of roots toward particles or granules of fertilizer. chemotropism chemotropism [ke-mot´ro-pizm] tropism elicited by chemical stimulation. 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. Synonym(s): chemiotaxis, chemotropism [chemo- + G. taxis, orderly arrangement] 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. 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. 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. ThesaurusSeechemotaxis
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