Involvement Of K+ In Leaf Movements During Suntracking
Beginning of paper
Involvement of K+ in Leaf Movements During Suntracking
Introduction
Many plants orient their leaves in response to directional light signals.
Heliotropic movements, or movements that are affected by the sun, are common
among plants belonging to the families Malvaceae, Fabaceae, Nyctaginaceae, and
O ....
Middle of paper
.... less than 15° from the normal to the sun. Many plants that exhibit
diaheliotropic movements also show paraheliotropic response as well.
Paraheliotropism minimizes water loss by reducing the amount of light absorbed
by the leaves; the leaves orient themselves parallel to the sun’s rays. Plants
that exhibit paraheliotropic behavior usually do so at midday, when the sun’s
rays are perpendicular to the ground. This reorientation takes place only in
leaves of plants that are capable ....
------------------
Word count: 2307
Page count: 9 (approximately 250 words per page)
