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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

pho•tot•ro•pism

(foʊˈtɒ trəˌpɪz əm, ˌfoʊ toʊˈtroʊ pɪz əm)

n.
phototropic tendency or growth.
[1895–1900]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

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
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phototropism - an orienting response to light
tropism - an involuntary orienting response; positive or negative reaction to a stimulus source
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

phototropism

[ˈfəʊtəʊˈtrəʊpɪzəm] Nfototropismo m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

phototropism

[ˌfəʊtəʊˈtrəʊpɪzm] nfototropismo
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
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).