circumnutation造句

• Helical growth of twining plants is based on a nutational movement of stems ( circumnutation ).
• This action, called circumnutation, has the real effect of securing and pulling the branches higher, thus enabling its leaves exposure to the sun for photosynthesis.
• Like movements of radial organs, such as stems, cylindrical leaves, and roots, have been termed circumnutation, or revolving nutation, to distinguish them from the simple nutation of dorsiventral organs.
• The process that creates the circular or elliptical movement of the stem and tips of plants ( circumnutation ) was identified as a significant one in enabling plants to evolve and adapt to almost any environment on the planet.