The root and shoot of each plant will alter their growth in order to reorient themselves along the new gravity vector. Here is a wild type seedling at the beginning and end of the reorientation assay. Then, the plate is tilted 45 degrees from the vertical, and the seedlings are allowed to grow further. Under these conditions, roots develop a wavy pattern of growth 1 . The wavy assay phenotype of a mutant unable to properly respond to gravity is shown below.
Mutants showing aberrant wavy phenotypes fall into several categories.
Several are shown below.