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Thread: shifting a plants sense...

  1. #9
    War. War never changes. Est's Avatar
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    The real fun is when you mess with animals to make them think everything is upside down. There's some animals that orient themselves using magnetism; in an experiment when researchers placed magnets in a certain way, the animal would be convinced that down was up and up was down.

    It's for science dang it don't gimme that look!
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    Chefdjc91's Avatar
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    Do you have the mesh bags currently? i think after you perfect the neps, you should do it with VFTs also!!!
    Pictures!
    Pictures!
    Pictures!!!!!!!!!!!!!!!!!!!
    I am going to visit the sarracenia in Oregon someday



  3. #11

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    Quote Originally Posted by [b
    Quote[/b] ]The real fun is when you mess with animals to make them think everything is upside down. There's some animals that orient themselves using magnetism; in an experiment when researchers placed magnets in a certain way, the animal would be convinced that down was up and up was down.
    Well, sort of. Some species used magetic fields for navigation, but this is primarily long-distance migrators like sea birds.

    However, crustaceans (among other marine inverts) use something called a statocyst to detect gravity. Essentially, it's a little hollow ball with sensory cillia on the inside and a grain of sand (which they take in while molting). The grain of sand presses down on the cillia that are "down", and the animal uses this to determine which direction gravity is pulling.

    What you refer to is when you put a crustacean in a tank filled with iron filings before it molts, meaning it will take up the iron for use in the statocysts. Once this is done, you can use a magnet to make the crustacean think gravity is pulling in any direction you want. I'm actually planning on making use of this trick for some experiments on crab locomotion someday.

    Mokele
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  4. #12
    wicked good plants! Presto's Avatar
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    Quote Originally Posted by [b
    Quote[/b] (Cynic81 @ Aug. 10 2006,1:41)]I think gravity is a factor. I remember in the plant section of my intro bio course that plants are programmed to grow "away" from gravity in the absense of other factors.
    yeah, plants can sense gravity...that's how a seed buried in soil knows to send the roots down and the shoots up. (I think they've brought seeds into space, and without gravity they just grow in random directions.) once the plant is developed enough, things like light also come into play.

    I think you'll be able to get the plants to grow upside-down. as far as the plant's concerned, it's growing on a cliffside with a totally covered canopy, and the only light source is a hole in the canopy below it. it wouldn't, however, be tricked into thinking it's right-side-up. I bet nepenthes pitchers would still be facing up (upside down relative to the plant).

    anyway, that's my guess...it'll be cool to see what you come up with!
    -Emily

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    Chefdjc91's Avatar
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    I think that the neps will work because the plant itself will go toward the light source, whats that called again photo tropisms or something?
    I forget
    once again: pictures?!
    I am going to visit the sarracenia in Oregon someday



  6. #14
    Always a newbie glider14's Avatar
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    pictures...not yet. its still somthing im working on.
    the ball of droseras.... that would be cool!
    Alex
    Everything is explainable. The seemingly unexplainable is but a result of our insufficient knowledge.- Hans Brewer

  7. #15
    herenorthere's Avatar
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    Since Neps are from the southern hemisphere, they're accustomed to being upside down.
    Bruce in CT

    Madness is something rare in individuals but in groups, parties, peoples, ages it is the rule. Friedrich Nietzsche

  8. #16
    Stay chooned in for more! Clint's Avatar
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    lol

    when i was little i thought people wore suction cups on their feet and nailed their houses to the ground in australia lmao

    once my parents talked about how hot florida was, so i pictured volcanos and rivers of lava with people in boats lmao.

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