The adverse effect of Cu on growth is apparent from the reduction in root length of the Cu-treated Arabidopsis roots. Arabidopsis seems to be more resistant to Cu in comparison with that of soybean in terms of root growth. The increase of the levels of H2O2 was observed in Cu-treated Arabidopsis roots. The lignin biosynthesis related enzymes, PODs and laccases were enhanced during the Cu treatments. The lignin contents slightly increased in Cu-treated Arabidopsis roots. To our surprise, the Arabidopsis can be tolerant to high concentration of Cu (200 µM), because only part of high levels of H2O2 accumulated in Cu-treated tissues are used by PODs to synthesize the lignin.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0722105-025407 |
| Date | 22 July 2005 |
| Creators | Chang, Chia-jung |
| Contributors | Zin-Huang Liu, Ching-Mei Hsu, Hao-Jen Huang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722105-025407 |
| Rights | unrestricted, Copyright information available at source archive |
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