phototropism


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pho·tot·ro·pism

 (fō-tŏt′rə-pĭz′əm, fō′tō-trō′-)
n.
Growth or movement of a sessile organism toward or away from a source of light.

pho′to·tro′pic (fō′tə-trō′pĭk) adj.

phototropism

(ˌfəʊtəʊˈtrəʊpɪzəm)
n
1. (Botany) the growth response of plant parts to the stimulus of light, producing a bending towards the light source
2. (Zoology) the response of animals to light; phototaxis
ˌphotoˈtropic adj

pho•tot•ro•pism

(foʊˈtɒ trəˌpɪz əm, ˌfoʊ toʊˈtroʊ pɪz əm)

n.
phototropic tendency or growth.
[1895–1900]

pho·tot·ro·pism

(fō-tŏt′rə-pĭz′əm)
The growth or movement of a fixed organism, especially a plant, toward or away from light.

phototropic (fō′tə-trō′pĭk, fō′tə-trŏp′ĭk) adjective

phototropism

growth or motion in response to light. — phototropic, adj.
See also: Biology
motion in a particular direction under the stimulus of light, as exhibited by certain plants, organisms, etc. — phototropic, adj.
See also: Motion
motion in a particular direction under the stimulus of light, as manifested by certain plants, organisms, etc. — phototropic, adj.
See also: Light
motion in response to light, either toward it or away from it, as manifested by certain plants. — phototropic, adj.
See also: Plants
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phototropism - an orienting response to light
tropism - an involuntary orienting response; positive or negative reaction to a stimulus source
Translations

phototropism

[ˈfəʊtəʊˈtrəʊpɪzəm] Nfototropismo m

phototropism

[ˌfəʊtəʊˈtrəʊpɪzm] nfototropismo
References in periodicals archive ?
Once hatched, only the actively swimming zoea larvae (displaying a positive phototropism) produced by the different females were collected and mixed in a 500-mL glass beaker, to avoid possible influence of genetic differences and/or parental conditions (e.g., age, health, physiological and nutritional state, diseases) on the performance of larvae and juveniles in the experiments.
After 24 h, the cysts hatched, the larvae migrated to the lighted compartment because they had phototropism positive.
"For me, the change was gradual and there was no 'lightbulb moment'," she explained, it was rather a phototropism."
Auxin elongates subapical cells and affects phototropism, geotropism, and fruit development.
Polydorid larvae can be separated and collected from other plankton because they had stronger phototropism. Several drops of 5% MgCl2 solution were added and the adult worms and larvae were examined and photographed using a stereomicroscope (SZX7, Olympus, Japan) equipped with a digital camera.
(23) His intellectual career included a De vegetabilibus that made enormous advances in the understanding of vines, buds, phototropism, sap, and the classification of plants, and a De animalibus that describes, sometimes for the first time,
Called phototropism (photo means light, and trope means to grow), the process relies on plant cells producing growth hormones called auxins.
2008), likely because oyster larvae exhibit negative phototropism (Baker & Mann 1998).