Unstill Life by Teeth Beetles
January 9th, 2009 5:54 PMThigmotaxis is the natural tendency of specific plant parts, such as tendrils, to coil around objects.
In this Praxis, I demonstrate all these taxis over time.
Strawberry Gravitropism Heliotropism.jpg
In this experiment, we can see that the strawberry plant from Sloat, originally has it's three leaves pointing upward. However, when tilted at roughly a 40 degree angle the leaves not only move to face the sun, but also the stem bends in accordance with gravity. In the last section, it can be observed more easily when the pot is once again placed on a flat surface.
Pea Thigmotropism.jpg
Here, growth and thigmotropism can be observed. The tendrils of the peas grow and come to wrap around one of the swizzle sticks. The sticks aren't stationary because when I was watering the plant, they occasionally fell out.
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Rin Brooker
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Mr Everyday
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Lincøln
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Kushiel's Servant
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saille is planting praxis
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.thatskarobot
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teucer
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Sombrero Guy
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Augustus deCorbeau
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science, votelater7 comment(s)
The plant moved to reach a better angle to absorb sunlight!
The differential growth rates cause the leaves to move, though, don't they?
Hmm, in the same way that the edge of my fingernails move, I guess. *shrug*
When I was a young boy my mother told me, "son,
Stay away from paradox and never play with puns;"
But I met a man named Zeno, and I can't break free.
Those people keep on moving, and it tortures me.
It's not the same as Mimosa or Dionaea or leaf stoma, which move via ion channels, but it is changing position in three dimensional space over time. Technically speaking, though even nastic movements and stomatal movement only really move in the same way that a balloon moves when you let all the water out, because plants don't have a solid framework to brace for movement. Ions are pumped through channels to change the osmotic balance, causing the water to passively move out of the cell.
A less problematic praxis would probably be something like tracking disseminules or germination in a barren field. Has anyone ever conducted a task over a period of several years?
I can go with growth as a type of (slow) motion.
Um, it does grow differently, I mean, the side of the stem that's closer to the ground grows faster than the other side, but neither the whole plant or a part of it really moves...