Notices
Results 1 to 6 of 6

Thread: What makes beanstalks move in circular movements?

  1. #1 What makes beanstalks move in circular movements? 
    Forum Ph.D.
    Join Date
    Jan 2013
    Posts
    908
    http://cdn1.smosh.com/sites/default/...bean-stalk.gif

    How do beanstalks move?

    Plants don't have muscles, so maybe something to do with the cell wall?
    Plus, in the video, they all move anticlockwise, any reasons why? Do all beanstalks move ACW, or do some move CW?
    Do the stalks of all these bean species do this?

    https://www.google.com/webhp?sourcei...talk+wikipedia

    Wiki doesn't seem to have data on how they can do this, anyone here knows?


    Quote Originally Posted by jocular View Post
    If thy right nipple offend thee, pluck it off! Goes for the other, too!
    Reply With Quote  
     

  2.  
     

  3. #2  
    Forum Ph.D.
    Join Date
    Jul 2011
    Posts
    985
    Most movement in plants is photo tropism. My guess is that bean plants are following the sun.


    Reply With Quote  
     

  4. #3  
    Forum Radioactive Isotope Paleoichneum's Avatar
    Join Date
    Oct 2008
    Location
    Washington State, USA
    Posts
    4,564
    As sealeaf notes, the moment is a form of phototropism, which in the case of beans, is a product of slightly uneven cell wall production and adjustments in the turger pressure of cells on both the lighter and darker sides of the plant.
    If more of us valued food and cheer and song above hoarded gold, it would be a merrier world. -Thorin Oakenshield

    The needs of the many outweigh the need of the few - Spock of Vulcan & Sentinel Prime of Cybertron ---proof that "the needs" are in the eye of the beholder.
    Reply With Quote  
     

  5. #4  
    Suspended
    Join Date
    Apr 2007
    Location
    Pennsylvania
    Posts
    8,822
    But the plant isn't following the light; it's waving in circles, looking for a branch to wrap around. When it does hit a branch it goes in tighter circles, which I suppose is thigmotropism.
    Reply With Quote  
     

  6. #5  
    Forum Ph.D.
    Join Date
    Jan 2013
    Posts
    908
    Is the ACW movement just a coincidence in all 3 "spinners" in the animated gif or is there some reason for the ACW pattern?
    Quote Originally Posted by jocular View Post
    If thy right nipple offend thee, pluck it off! Goes for the other, too!
    Reply With Quote  
     

  7. #6  
    Forum Radioactive Isotope Paleoichneum's Avatar
    Join Date
    Oct 2008
    Location
    Washington State, USA
    Posts
    4,564
    I dont know about clockwise vers counterclockwise, but Harold is correct, and this is thigmotropism rather then phototropism.
    If more of us valued food and cheer and song above hoarded gold, it would be a merrier world. -Thorin Oakenshield

    The needs of the many outweigh the need of the few - Spock of Vulcan & Sentinel Prime of Cybertron ---proof that "the needs" are in the eye of the beholder.
    Reply With Quote  
     

Similar Threads

  1. Replies: 2
    Last Post: September 12th, 2014, 12:16 PM
  2. Replies: 3
    Last Post: October 4th, 2012, 07:05 PM
  3. Non Circular Curves
    By Karakris in forum Mathematics
    Replies: 0
    Last Post: August 30th, 2011, 04:26 PM
  4. Help with circular queues
    By colourfulbananas in forum Computer Science
    Replies: 2
    Last Post: May 12th, 2011, 08:30 AM
  5. Replies: 20
    Last Post: January 11th, 2008, 01:36 PM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •