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hey guys, it's me, hit rapper eminem and 
totally not some a.i. generated voice

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anywho

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today i am going to tell you about something 
very  cool and epic called thigmotropism

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thigmotropism is an occurance in plants where 
they change their or alter their shape in 
response to a physical stimulus

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this can be vine curving around a branch 
to gain better support,

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or a venus fly trap shutting its mouth to 
trap an unsuspecting insect

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but what exactly causes this?

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thigmotropism involves a part of a plant 
coming into contact with something, typically 
its leaves or roots

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no matter the part, it all boils down to 
a specific type of cell on the cell's surface

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these cells, when directly touched, release 
the ligands ethylene, which moves across 
the cell, and auxin, which uses external 
receptors

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this results in a paracrine reaction which 
causes the plant to move towards the source 
of the contact

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fun fact!

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despite reacting to touch, the mimosa pudica 
is not an example of thigmotropism

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this is because when touched, the plant just 
shuts all its leaves instead of moving towards 
the source of the touch

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because of this, it is actually considered 
a nastic response, which is a non-direction 
based response to touch

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getting back to thigmotropism