phototaxis

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Related to phototactic: Phonotactic

phototaxis

 [fo″to-tak´sis]
taxis of cells and microorganisms under the influence of light. adj., adj phototac´tic.

pho·to·tax·is

(fō'tō-tak'sis),
Reaction of living protoplasm to the stimulus of light, involving bodily motion of the whole organism toward (positive phototaxis) or away from (negative phototaxis) the stimulus. Compare: phototropism.
[photo- + G. taxis, orderly arrangement]

phototaxis

/pho·to·tax·is/ (-tak´sis) the movement of cells and microorganisms in response to light.phototac´tic

phototaxis

(fō′tō-tăk′sĭs)
n.
The movement of an organism or a cell toward or away from a source of light.

pho′to·tac′tic (-tăk′tĭk) adj.
pho′to·tac′ti·cal·ly adv.

pho·to·tax·is

(fō'tō-tak'sis)
Reaction of living protoplasm to the stimulus of light, involving bodily motion of the whole organism toward (positive phototaxis) or away from (negative phototaxis) the stimulus.
Compare: phototropism
[photo- + G. taxis, orderly arrangement]

phototaxis

the movement of a whole organism in response to a directional light stimulus. For example, movement of unicellular algae or fruit flies towards a source of light is positive phototaxis, while movement away from light if the stimulus is too strong is negative phototaxis.

phototaxis

the movement of cells and microorganisms under the influence of light.
References in periodicals archive ?
Phototactic behavior: repellent effects of cigarette beetle, Lasioderma serricorne (Coleoptera: Anobiidae), to light-emitting diodes.
In addition, the phototactic response of larval and juvenile fishes may be lower at lower light intensities (Gehrke, 1994; Stearns et al.
From the resulting clones, 10 were picked randomly to be studied for their phototactic behavior in the absence and presence of fish kairomone.
Light was directed only horizontally, through the glass door, thus preventing any confounding vertical phototactic reaction.
Observations of the fly in the field strongly suggest it is positively phototactic, as during mornings more flies are usually seen at sunlit than shady sides of trees (Frick et al.
The trochophore larvae hatched in nearly 9 h, the newly hatched larvae were positively phototactic, clustering close to the water surface.
Phototactic Responses of Larvae from the Marine Sponge Xestospongia proxima.
All negative phototactic behavioral patterns of early benthic-stage juveniles are based on observations of hatchery-reared lobsters, either in the laboratory, natural aquaria, or in the wild (Ennis, 1973; Botero and Atema, 1982; Cobb et al.
In accordance with observations that light levels (Miller & Etter 2008) and phototactic behavior (Nakagawa et al.