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phototropism
phototropism (fəʊˈtɒtrəpɪz(ə)m, fəʊtəʊˈtrəʊpɪz(ə)m) [f. photo- 1 + tropism.] 1. Biol. [ad. G. phototropie (F. Oltmanns 1892, in Flora LXXV. 214).] The innate movement in a definite direction of an organism or part of one in response to the stimulus of light; esp. the directional bending or growth of...
Oxford English Dictionary
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Phototropism
Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism. Negative phototropism is not to be confused with skototropism, which is defined as the growth towards darkness, whereas negative phototropism can refer
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Define what phototropism means.
Phototropism is a biological phenomenon in which plants, animals, and other organisms move or orient themselves in response to directional stimulus from In animals, phototropism is a response used for navigation, growth, and development.
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TROPI
TROPI, or "Analysis of a Novel Sensory Mechanism in Root Phototropism", is an experiment on the International Space Station (ISS) to investigate the growth Experiments performed were used to explore the mechanisms of both blue-light- and red-light-induced phototropism in plants.
John Z.
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diaphototropic
diaphototropic, a. Bot. (ˌdaɪəfəʊtəʊˈtrɒpɪk, -ˈtrəʊpɪk) [f. dia-1 + phototropic a.] Of a plant, leaf, etc.: turning at right angles to incident light. So ˌdiaphoˈtotropism. Cf. diaheliotropic a., -ism.1901 D. T. MacDougal Pract. Text-bk. Plant Physiol. viii. 127 Leaves..place their surfaces at right...
Oxford English Dictionary
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Photophobia (biology)
Photophobia (or photophobic response) may also refer to a negative phototaxis or phototropism response.
References
Physiology
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phototaxis
phototaxis Biol. (fəʊtəʊˈtæksɪs) Pl. -taxes (-ˈtæksiːz). [mod.L., coined in Ger. (E. Strasburger 1878, in Jenaische Zeitschr. f. Naturwissensch. XII. 587): see photo- 1 and taxis.] The innate movement in a definite direction of an organism or part of one in response to the stimulus of light; esp. th...
Oxford English Dictionary
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Tropism
Tropisms are usually named for the stimulus involved; for example, a phototropism is a movement to the light source, and an anemotropism is the response : movement or growth in response to lights or colors of light
Aphototropism: negative phototropism
Skototropism: negative phototropism of vines
Selenotropism
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tropism
tropism Biol. (ˈtrɒpɪz(ə)m, ˈtrəʊpɪz(ə)m) [The second element of heliotropism, geotropism, etc., used as an inclusive or generic term.] The turning of an organism, or a part of one, in a particular direction (either in the way of growth, bending, or locomotion) in response to some special external s...
Oxford English Dictionary
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Photoreceptor protein
They mediate light responses as varied as visual perception, phototropism and phototaxis, as well as responses to light-dark cycles such as circadian rhythm Photoreceptors in plants
UVR8: UV-B light reception
Cryptochrome: blue and UV-A light reception
Phototropin: blue and UV-A light perception (to mediate phototropism
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Which of the following is NOT a type of tropism? Which of the following plant movements is NOT a tropism? 1. Plant stem growing toward light 2. Plant structure growing away from light 3. Plant roots growing ...
This refers to a phenomenon called plasmolysis.
1 - positive phototropism, incorrect
2 - negative phototropism, incorrect
3 - gravitropism, incorrect
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Heliophobia (disambiguation)
See also
Helium, a chemical element; other elements can be heliophilic, attracted to helium, or heliophobic, repelled by helium
Phototropism, growth
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向性
种类
向光性(Phototropism),对光或特定色光的移动或生长反应。
向地性(Gravitropism or geotropism),对重力的移动或生长反应。
向触性(Thigmotropism)
向水性(Hydrotropism),或又称向湿性。
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向光性&光周期性 (文章) | 植物对光的反应 | 可汗学院
并非所有植物都是短日植物或长日植物之中的一种。有些植物是日中性植物,意味着花期不取决于日照长度。 此外,尽管它是研究人员最关注的一个特征,开花并不是唯一可以受光周期(即日照长度)控制的行为。 例如,马铃薯的块茎形成也受光周期的控制 ...
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Campbell: Biology in Focus - Chapter 31 Flashcards | Quizlet
Study with Quizlet and memorize flashcards containing terms like hormone, tropism, phototropism and more.
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