dictionary help| geotropism --> gravitropism | medical dictionary |
Directional growth of a plant organ in response to a gravitational field roots grow downwards, shoots grow upwards. Achieved by differential growth on the sides of the root or shoot. A gravitation field is thought to be sensed by sedimentation of statoliths (starch grains) in root caps.
(11 Mar 2008)
gravitational ulcer, gravitational units, gravitaxis < Prev | Next > gravity, gravity, altered, gravity perception
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