In most deciduous trees, a group of cells grows between the branches and the leaves, called the abscission layer, and acts as ...

Plant abscission represents a finely orchestrated developmental process whereby plants shed organs such as leaves, flowers or fruit. This process is mediated by a specialised layer of cells, known ...

This abscission layer, when it spans the entire stem, causes the leaf to fall off the tree. This helps protect these trees from losing water from their leaves during the winter (an extremely dry ...

The annual antler cycle. At the end of mating season, usually in late winter, male deer, or bucks, shed their antlers thanks ...

As the abscission layer is maturing, a different group of cells at the base of the petiole forms another protective layer of cells, containing compounds called suberin and lignin, ...

Marcesent trees, however, don’t fully form abscission layers until the spring, allowing them to hold onto their leaves for longer. Marcesent oak leaves are typically a rusty brown; ...

This layer seals off the nutrient flow from the leaf to the branch, traps sugars, and causes the leaf to drop. This natural process is impaired by cloudy, rainy days and rapid temperature changes.

Ginkgo trees also form an abscission layer, which makes them drop their leaves. Typically, with ginkgo trees, this occurs rapidly with the trees having leaves one day and none the next.

While the auxin reduces, a layer of cells called the abscission layer is broken down, straining the bond between the leaf and the tree branch, according to Forestry and Land Scotland.As time goes ...

But in marcescent trees, the abscission layer doesn’t form until spring and that’s when their leaves finally fall to the ground. Scientists aren’t sure why certain tree species hold their ...

After the rut, an “abscission layer” forms between the antlers and their pedicels. When the connective tissue dissolves, the antlers loosen and fall off.

Early cold has caught this hydrangea before its leaves formed the abscission layer that lets them drop off the tree. (Special to the Democrat-Gazette) ...