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Parasitic Flowering Plants


PowerPoint pristatymas (anglų kalba). Žydintys parazitiniai augalai.


When one organism steals all of its food from another organism's body it is called a parasite.
The organism who is being robbed of its food supply is called the host. The parasitic mode of existence can be found throughout the kingdoms of life, from bacteria and fungi to insects, arachnids and worms. Parasitism has also evolved in many families of flowering plants. Some heterotrophic flowering plants get their nutrition from mycorrhizal soil fungi that are in turn attached to the roots of forest trees.
True plant parasites can be hemiparasitic
with photosynthetic leaves (such as mistletoe),
or holoparasitic and completely dependent on
their host (such as dodder).
Some stem parasites, such as a local southern California desert native, are endoparasitic and live completely within the stems of their host. The only part of Pilostyles that emerges from the host is a tiny bud that opens into a minute red flower. This is similar to a pimple appearing on your face that bursts into a tiny blossom. Of all the more than 230,000 species of flowering plants, the root and stem parasites certainly include some of the most bizarre and beautiful species. ...

Rašto darbo duomenys
Tinklalapyje paskelbta2005-06-21
DalykasŽemės ūkio pristatymas
KategorijaŽemės ūkis
Apimtis8 skaidrės
Literatūros šaltiniai0
KalbaAnglų kalba
Dydis296.76 KB
Viso autoriaus darbų7 darbai
Metai2005 m
Failo pavadinimasMicrosoft PowerPoint prezent.ppt

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