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IDENTIFICATION AND COMPARISION OF FUNGI FROM DIFFERENT DEPTHS OF ANCIENT GLACIAL ICE
| Title: | IDENTIFICATION AND COMPARISION OF FUNGI FROM DIFFERENT DEPTHS OF ANCIENT GLACIAL ICE |
| Author: | Patel, Angira N |
| Description: | Glacial ice serves as a unique preservation matrix for contemporary and ancient microorganisms. The main objective of this study was to evaluate and test the existence of the fungi encased in ancient glacial ice of Antarctica and Greenland. PCR (polymerase chain reaction) amplification was used to isolate the DNA followed by DNA sequencing to obtain the DNA sequences of the ancient microorganisms. Most of the sequences obtained from ancient microbes were similar to the contemporary fungi. Few fungi cultured were approximately 10,000 years old. Microorganisms isolated from ancient glacial ice have undergone repeated phases of evolutionary changes, such as irradiation, freezing and thawing, and in the process they have been archiving various biogenic materials over the period of time. These microorganisms entrapped in glacial ice provide valuable information about the evolutionary processes, as well as the rich biodiversity during ancient times. Hence, various species of microorganisms may appear to be extinct, but factually they might be dormant, entrapped in ice for millions of years and are capable to reappear amidst suitable conditions. The results of this study can be used in future to relate the biological, biogeochemical and genetic composition to a unique and well characterized geologic history of the fungi entrapped in ancient glacial ice. |
| Permanent Link: |
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1141752883
http://hdl.handle.net/2374.OX/15403 |
| Date: | 2006 |
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