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tropism    
n. 向性,趋性,屈性

向性,趋性,屈性

tropism
n 1: an involuntary orienting response; positive or negative
reaction to a stimulus source

Tropism \Tro"pism\ (tr[=o]"p[i^]z'm), n. [Gr. troph` a turning,
tre`pein to turn -ism.] (Physiol.)
Modification of the direction of growth, caused by some
external influence, such as light; -- sometimes used for
motion of an organism toward or away from an external
stimulus, more properly called {taxis}.
[Webster 1913 Suppl. PJC]


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  • Tropism - Wikipedia
    Viruses and other pathogens affect what is called "host tropism", "tissue tropism", or "cell tropism"; in which case tropism refers to the way in which different viruses pathogens have evolved to preferentially target specific host species, specific tissue, or specific cell types within those species
  • Tropism | Phototropism, Geotropism Chemotropism | Britannica
    Tropism, response or orientation of a plant or certain lower animals to a stimulus that acts with greater intensity from one direction than another It may be achieved by active movement or by structural alteration
  • Plant Tropisms: Phototropism, Thigmotropism, and More
    Tropism in plants is a growth response to environmental stimuli, such as light (phototropism) or gravity (gravitropism), allowing plants to thrive
  • Tropism – Definition, Types, Mechanism, Examples, Importance
    What is Tropism? Tropism refers to the inherent capability of an organism, predominantly plants, to orient or move in reaction to an external stimulus This response is not learned but is an innate, genetically encoded behavior
  • 4. 2. 1: Tropisms - Biology LibreTexts
    A tropism is directional growth in response to a stimulus A positive tropism occurs when a plant (or a part of the plant) grows towards the stimulus, and a negative tropism is growth away from the stimulus
  • TROPISM Definition Meaning - Merriam-Webster
    The meaning of TROPISM is involuntary orientation by an organism or one of its parts that involves turning or curving by movement or by differential growth and is a positive or negative response to a source of stimulation
  • What Are The 5 Tropisms And The Plants Response To Each?
    Simply put, tropisms are plant apparatus in their fight against environmental changes They enable the plants to adapt to their environment and grow depending on the stimulus they experience
  • Tropism | Encyclopedia. com
    tropism (tropic response) Response in growth and orientation of a plant or a part of it in relation to a directional, external stimulus, such as light or water
  • What Is Tropism in Biology and Its Major Forms?
    A fundamental way many living things, particularly plants, respond to these cues is through a phenomenon known as tropism Tropism describes a growth or turning movement of an organism that is directed by an external stimulus
  • Tropism in Biology: Types, Examples Detailed Guide - Vedantu
    In plant biology, tropism is a directional growth movement that a plant, or a part of a plant, makes in response to an external stimulus This response can be either towards the stimulus (positive tropism) or away from it (negative tropism)





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