heliotropism


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he·li·o·tax·is

(hē'lē-ō-tak'sis),
A form of phototaxis, and perhaps of thermotaxis, in which there is a tendency to growth or movement toward (positive heliotaxis) or away from (negative heliotaxis) the sun or the sunlight.
Synonym(s): heliotropism
[helio- + G. taxis, orderly arrangement]

heliotropism

(hē′lē-ŏt′rə-pĭz′əm)
n.
Growth or orientation of a sessile organism, especially a plant, toward or away from the light of the sun.

he′li·o·tro′pic (-ə-trō′pĭk) adj.

heliotropism

(hē″lē-ŏt′rō-pĭzm) [″ + trepein, to turn, + -ismos, condition]
The tendency of living organisms to turn or grow toward the sun.

heliotropism

a type of PHOTOTROPISM in which the flowers of a plant turn towards the sun during the day.
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References in periodicals archive ?
Sunny-side up: flower heliotropism as a source of parental environmental effects on pollen quality and performance in the snow buttercup, Ranunculus adoneus(Ranunculaceae).
And on this point the researchers were on shaky ground, because no modern examples of heliotropism in stromatolites had ever been reported.
Awramik says that most recently he's also found evidence for heliotropism in millimeter-sized stromatolite tufts in the Caribbean.
Punctuated by vibrant lemon yellows, deep blues and playful summer patterns, Habitat's Spring/Summer 2016 collection, Heliotropism, is now at the Habitat Manila showroom.
A system can be goal directed through its inherent natural programming (for example, heliotropism or homeostasis) without any admixture of purpose even as a conservation of energy principle need not be held on the basis of nature's seeking to conserve energy.
Insect pollination and heliotropism in Oritrophium limnophilum (Compositae) of the Andean Paramo.
i]s the insistence that nature is artifactual not more evidence of the extremity of the violation of a nature outside and other to the arrogant ravages of our technophilic civilization, which, after all, we were taught began with the heliotropisms of enlightenment projects to dominate nature with blinding light focused by optical technology?