from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a plant's ability to change its growth in response to gravity.


from Wiktionary, Creative Commons Attribution/Share-Alike License

gravi- +‎ tropism


  • The modest light gradient experienced by the tree is counteracted by a continuous gravitational influence, known as gravitropism, which guides plant growth upward.

    Scientific American

  • A team of biologists from the University of California, Riverside has used chemical genomics to identify novel compounds that affect the ability of plants to alter their direction of growth in response to gravity, a phenomenon known as gravitropism.

    NASA Watch: Keith Cowing: March 2005 Archives

  • Joining forces: The interface of gravitropism and plastid protein import.

    SpaceRef Top Stories

  • (Strangely, plants use the gene as part of their system for sensing gravity, called gravitropism.)

    EurekAlert! - Breaking News

  • Phototropism is a plant's growth response to a direct light source and gravitropism is its growth in response to gravity. - latest science and technology news stories

  • PINOID kinase regulates root gravitropism through modulation of PIN2-dependent basipetal auxin transport in Arabidopsis thaliana.

    SpaceRef Top Stories

  • A new genetic factor for root gravitropism in rice (Oryza sativa

    SpaceRef Top Stories


Log in or sign up to get involved in the conversation. It's quick and easy.

  • Charles Darwin was one of the first to scientifically document that roots show positive gravitropism and stems show negative gravitropism. That is, roots grow in the direction of gravitational pull (i.e., downward) and stems grow in the opposite direction (i.e., upwards).

    June 24, 2015