Definitions for thigmotropism
θɪgˈmɒ trəˌpɪz əmthig·motropism

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1. thigmotropismnoun

   Growth or motion in response to touch.

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1. Thigmotropism

   Thigmotropism is a directional growth movement which occurs as a mechanosensory response to a touch stimulus. Thigmotropism is typically found in twining plants and tendrils, however plant biologists have also found thigmotropic responses in flowering plants and fungi. This behavior occurs due to unilateral growth inhibition. That is, the growth rate on the side of the stem which is being touched is slower than on the side opposite the touch. The resultant growth pattern is to attach and sometimes curl around the object which is touching the plant. However, flowering plants have also been observed to move or grow their sex organs toward a pollinator that lands on the flower, as in Portulaca grandiflora.

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1. Thigmotropism

   Thigmotropism is a movement in which a plant moves or grows in response to touch or contact stimuli. The prefix thigmo- comes from the Greek for "touch". Usually thigmotropism occurs when plants grow around a surface, such as a wall, pot, or trellis. Climbing plants, such as vines, develop tendrils that coil around supporting objects. Touched cells produce auxin and transport it to untouched cells. Some untouched cells will then elongate faster so cell growth bends around the object. Some seedlings also exhibit triple response, caused by pulses of ethylene which cause the stem to thicken and curve to start growing horizontally. Roots also rely on touch to navigate their way through the soil. Generally, roots have a negative touch response, meaning when they feel an object, they would grow away from the object. This allows the roots to go through the soil with minimum resistance. Because of this behavior, roots are said to be negatively thigmotropic. Interestingly, thigmotropism seems to be able to override the strong gravitropic response of even primary roots. Charles Darwin performed experiments where he found that in a vertical bean root, a contact stimulus could divert the root away from the vertical.

How to pronounce thigmotropism?

1. Alex

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   David

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   Mark

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   Daniel

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   Libby

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   Karen

   Australian

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How to say thigmotropism in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of thigmotropism in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of thigmotropism in Pythagorean Numerology is: 2

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Thigmotropism
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Thigmotropism
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=thigmotropism