Here are the starch statoliths that settle out of the cytoplasm to the "bottom" of the columella cells, allowing them to detect the direction of "up". Here are the starch statoliths that settle out of the cytoplasm to the "bottom" of the columella cells, allowing them to detect the direction of "up".Thank you for the detailed info and pictures.
These starch statoliths may assist the roots in determining which direction is ‘down’, but does that mean they also tell the ‘sprout’ which direction is ‘up’? Could it be that the ‘sprout’ goes by infra-red radiation coming from ‘above’?