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http://nopr.niscpr.res.in/handle/123456789/23260| Title: | Involvement of oxyradicals in promotion/inhibition of expansion growth in cucumber cotyledons |
| Authors: | Kataria, Sunita Jain, Karishma Guruprasad, K N |
| Keywords: | Cucumber cotyledons;Cytokinins;Expansion growth;Hydro-oxyradical;Superoxide radical;UV-B stress |
| Issue Date: | Oct-2005 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Cytokinin-induced expansion growth of cucumber cotyledons and its interaction with UV-B (280- 320 nm) was studied with reference to oxyradicals. UV-B radiation enhanced the level of oxyradicals in the cotyledons measured by EPR spectroscopy. Cytokinin promoted expansion growth was inhibited by UV-B radiation. Cytokinins reduced the level of oxyradicals in dark grown cotyledons, while promoting growth . Overproduction of oxyradicals by UV-B could not be fully accounted for the inhibition of growth of cotyledons, since quenching of radicals by cytokinins did not fully restore inhibition of growth. |
| Page(s): | 910-915 |
| ISSN: | 0975-1009 (Online); 0019-5189 (Print) |
| Appears in Collections: | IJEB Vol.43(10) [October 2005] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJEB 43(10) 910-915.pdf | 1.13 MB | Adobe PDF | View/Open |
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