Supported by Thanet District Council
Mistletoe (Viscum album) is becoming quite rare in Kent as Apple Orchards decrease in number.

Mistletoe growth at Monkton Nature Reserve

Photographs by Ron Bodiam and Brian Summerfield
Click on the thumbnails for a larger image

 

Mistletoe grows as a parasite on branches of trees. It is commonly seen on apple but only rarely on oak trees. Although Mistletoe can photosynthesise, they rely on the tree host for water and nutrients. At Monkton Nature Reserve we are following the first few years of the growth of a European Mistletoe (Viscum album) on an Apple Tree in our woodland.

Once the crushed seed is attached, it extends a green hypocotyl which bends towards the branch. It then flattens out and forms a sucker-shape which adheres to the tree branch.. (All through this first year or two of its life the plant is very susceptible to drying out or attack by birds. We keep the birds away by means of a wire netting cage

Once the plant has penetrated the branch it enteres a parasitic phase and a swelling begins under the tree bark, connecting to the living tissue of the host tree. This is called a haustorium, and grows with the tree, causing strange distortions in the branch.

The first shoots of the mistletoe appear at about the same time as the first spring shoots of the apple, but unlike them, they are evergreen.

The Monkton mistletoe plant is nurtured by Ron Bodiam.

Summer 2010

Seeds attached to an apple branch. One has extended green sucker-shapes

The seed is well attached and the suckers or hypocotyl are clearly seen

Now the mistletoe enters its parasitic phase

The seedling is penetrating the tree, starting a growth inside

The swelling or haustorium showing the presence of mistletoe

A wire netting guard over the haustorium preventing birds from eating the young shoots
Early April 2009 Late April 2009

 

 
Tel: 01843 822666 | contact@monkton-reserve.org

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