phototaxis


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pho·to·tax·is

 (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.

phototaxis

(ˌfəʊtəʊˈtæksɪs) or

phototaxy

n
(Biology) the movement of an entire organism in response to light
phototactic adj

pho•to•tax•is

(ˌfoʊ təˈtæk sɪs)

also pho′to•tax′y,



n.
movement of an organism toward or away from a source of light.
[1900–05]
pho`to•tac′tic (-ˈtæk tɪk) adj.
pho`to•tac′ti•cal•ly, adv.

phototaxis, phototaxy

the movement of an organism away from or toward a source of light. — phototactic, adj.
See also: Light
the movement of an organism away from or toward a source of light. — phototactic, adj.
See also: Motion
References in periodicals archive ?
The benthic microalgae were separated from the sediments using sands preheated at 500[degrees]C and fluorescent light on the basis of phototaxis, in accordance with the procedure described by Riera and Richard (1996).
Effects of atmospheric pressure trends on calling, mate-seeking, and phototaxis of Diaphorina citri (Hemiptera: Liviidae).
Phototaxis in Limulus under natural conditions: evidence for reception of near-ultraviolet light in median dorsal ocellus.
Beetles were attracted to the light from the hole where the Falcon tube was attached, as a result of positive phototaxis.
Exposure to ammonia-based cleaner impacts Dictyostelium discoideum phototaxis and fruiting body production.
Of particular importance are the synchronization dynamics of the eukaryotic flagella that provide motility, enhance nutrient transport, and allow phototaxis in these organisms.
PHOTOTAXIS IN SOMMERSTORFFIA SPINOSA (OOMYCOTA) ZOOSPORES.
formosa) was positively phototactic in the absence of any chemical influence of its host mussel, Anodonta (now Pyganodon) cataracta, but exhibited negative phototaxis when tested in water containing extract of host gill tissue or in water from the mantle cavity of the host.
The role of gaseous metabolites in phototaxis by Dictyosteliumdiscoideum slugs.
Species can be attracted to, or disoriented by, sources of artificial light through positive phototaxis (Verheijen 1985; Longcore and Rich 2004).