| 释义 |
plagiotropism
pla·gi·ot·ro·pism P0344700 (plā′jē-ŏt′rə-pĭz′əm)n. Growth of a plant part at an oblique angle to a stimulus, such as gravity.
pla′gi·o·tro′pic (-ə-trō′pĭk) adj.plagiotropism (ˌpleɪdʒɪəʊˈtrəʊˌpɪzəm) n (Botany) the growth of a plant at an angle to the vertical in response to a stimulus ˌplagioˈtropic adjplagiotropismthe tendency of some plants to diverge from the vertical in their growth. — plagiotropic, adj.See also: Growth, PlantsPlagiotropism
Plagiotropism the growth of plant organs at some angle in the direction of a stimulus (for example, the force of gravity or a light source). Lateral shoots and roots, rhizomes, and leaves are plagiotropic. Plagiotropic organs usually are bilaterally symmetrical in structure. The angle of inclination is not absolutely constant in magnitude and may change, depending on the conditions under which the plant is growing. (See also ORTHOTRO-PISM.) |