Mistletoe. A Special Lesson Produced by: Joan Jackson & Dr. Frank B. Flanders Georgia Agricultural Education Curriculum Office April 2002 Teachers should view notes pages for additional information on certain slides. View note pages by clicking on ‘View’ and then ‘Notes Page’.
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A Special Lesson
Produced by: Joan Jackson & Dr. Frank B. Flanders
Georgia Agricultural Education Curriculum Office
Teachers should view notes pages for additional information on certain slides.
View note pages by clicking on ‘View’ and then ‘Notes Page’
Click HERE for more information about the authors.
Mistletoe is semi parasitic; that is, it has green leaves that provide some energy meets many of its energy by sucking the life blood from its host, usually oaks, elms, and poplars.
actually sends out roots that penetrate into the tree to take up nutrients. But mistletoe is also capable of producing its own nutrients by photosynthesis.
power of bestowing fertility, and the dung from which the mistletoe was thought to arise was also said to have “life-giving” power.
Instead, they eat mature fruits, however, they are still hard to digest.
In addition, seeds may fall from mistletoe plants in the upper part of the tree, creating new infestations on the lower branches.
primary haustorium grows from the undersurface of the holdfast and penetrates the bark, often through lenticels or auxiliary buds.
system of cortical stands and sinkers is initiated. The first shoots arise from buds on the holdfast, and they grow only a few millimeters during the first year.
children. For safety reasons, many companies have replaced the berries with artificial, plastic berries.
Once inside the bark, the mistletoe sends in special wedge tissue in search of the plumbing.
it may take years before the plant blooms and produces seeds. Broadleaf mistletoes have succulent stems that become woody at the base.
The dominant symptom caused by mistletoe is atrophy (meaning wither) and dieback of branch ends beyond the point of attachment of the parasite.
killed. Heavily infested trees may be reduced in vigor, stunted, or even killed, especially if they are stressed by other problems such as drought or disease.
mistletoe really sucks – its pull of water through the trees xylem is stronger than that of the tree and it will obtain water when the tree is thirsting to death.
severe water stress in hosts and is considered to contribute to dieback and loss of vigor.
plant seem to have an inhibiting effect on tumor growth, and increase the plasma B-endorphin levels which directly affect pain and mood levels in patients undergoing chemo and radiation therapy.
YES- I would like to play “How would you like to be a Mistletoe Millionaire” (Game 15)
YES-I would like to view the questions in Microsoft Word.
NO-I would like to end now.
Joan Jackson is a Freshman at the University of Georgia. She is majoring in Agricultural Communications.
Dr. Frank Flanders is the Curriculum Coordinator for Georgia Agriculture Education. He and his staff produce the Georgia Agricultural Education Curriculum Resource and Reference CD annually.
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