Definition of Phototaxis. Meaning of Phototaxis. Synonyms of Phototaxis

Here you will find one or more explanations in English for the word Phototaxis. Also in the bottom left of the page several parts of wikipedia pages related to the word Phototaxis and, of course, Phototaxis synonyms and on the right images related to the word Phototaxis.

Definition of Phototaxis

Phototaxis
Phototaxis Pho`to*tax"is, Phototaxy Pho"to*tax`y, n. [NL. phototaxis; photo- + Gr. ? an arranging.] (Biol.) The influence of light on the movements of low organisms, as various infusorians, the zo["o]spores of certain alg[ae], etc.; also, the tendency to follow definite directions of motion or assume definite positions under such influence. If the migration is toward the source of light, it is termed positive phototaxis; if away from the light, negative phototaxis. -- Pho`to*tac"tic, a. -- Pho`to*tac"tic*al*ly, adv.

Meaning of Phototaxis from wikipedia

- rotation direction and reenter the light. The second type of phototaxis is true phototaxis, which is a directed movement up a gradient to an increasing...
- organism to either swim towards the light (positive phototaxis), or away from it (negative phototaxis). A related response ("photoshock" or photophobic...
- a light source. This reaction or behavior is called positive phototaxis since phototaxis refers to a response to light and the organism is moving towards...
- rotation direction and reenter the light. The second type of phototaxis is true phototaxis, which is a directed movement up a gradient to an increasing...
- Examples include chemotaxis (movement along chemical gradients) and phototaxis (movement in response to light). Motility also includes physiological...
- appear to circle artificial lights. The reason for this behavior (positive phototaxis) is currently unknown. One hypothesis is called celestial or transverse...
- calcium-dependent control in ptx1 mutants results in a phototaxis defect. The direction of phototaxis in Chlamydomonas depends on the light intensity, but...
- mediate light responses as varied as visual perception, phototropism and phototaxis, as well as responses to light-dark cycles such as circadian rhythm and...
- serve as sensory photoreceptors in unicellular green algae, controlling phototaxis: movement in response to light. Expressed in cells of other organisms...
- slow rate of movement. The three-wheeled tortoise robots were capable of phototaxis, by which they could find their way to a recharging station when they...