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phototropism

NOUN
  1. an orienting response to light

How To Use phototropism In A Sentence

  • Maybe there's some phototropism in there as well they seem to be moving to the shadow at the top? Clustering of the intertidal snail Batillaria minima
  • Phototropins mediate photomovement responses such as phototropism, chloroplast relocation and stomatal opening.
  • Winslow Briggs has been fascinated by phototropism for more than 50 years, chipping away at the mechanism behind it in his lab at Carnegie Institution's Department of Plant Biology at Stanford University. News from The Scientist
  • Phototropism is a plant's growth response to a direct light source and gravitropism is its growth in response to gravity. PhysOrg.com - latest science and technology news stories
  • They took photos to document phototropism in plants - how plants grow in the direction of the sun - and erosion. Undefined
  • One of the earliest noted auxin effects was in phototropism, the curvature of stems toward a light source.
  • Almost 200 years ago, researchers first began to characterize plant responses to sunlight-among them, the propensity of a plant's tip to grow towards the light and its root to grow away from the light, a phenomenon called phototropism. News from The Scientist
  • Thus it was that the interpretations of J. Loeb (Die Tropismen, 1913) on the basis of experiments done with lower animals, estab - lished the neologist ideas of “phototropism” (orien - tation or displacement reaction in the direction of light), and of “thermotropism” (reaction directed to - wards a source of heat), to explain animal and perhaps also human behavior. Dictionary of the History of Ideas
  • Since then, the study of phototropism has been a cornerstone of plant science research. News from The Scientist
  • Where the specific stimulus is light, the phenomenon is phototropism ( "light-turning" G). The Human Brain
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