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http://nopr.niscpr.res.in/handle/123456789/28635| Title: | Effects of solar radiation on photosynthesis and pigmentation in the red alga Pyropia yezoensis Ueda (Bangiales, Rhodophyta) |
| Authors: | Xin-shu, Li Zi-hui, Feng Pei-min, He |
| Keywords: | Pyropia yezoensis;UV radiation;Effective quantum yield;Growth;Pigments |
| Issue Date: | Apr-2014 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The effects of solar UV radiation (280-400 nm) on growth, photosynthesis and pigments of red alga Pyropia yezoensis were investigated when the thalli were cultured under solar radiation with or without UV. Most of inhibition and lowest recovery about photosynthetic performance were found in the thalli exposed to full solar spectrum. UV-B (218-315 nm) decreased the growth rate under both high light (HL) and low light (LL) conditions. Presence of UV-A (315-400 nm) enhanced the phycobiliprotein content, while UV-B inhibited it. UV played a positive role in stimulating the synthesis of carotenoid and UV-absorbing compounds, which contributed to the protection of the photosynthetic apparatus. Results showed that high light and UV radiation inhibited photosynthesis and growth of P. yezoensis, but a few basic physiological strategies were activated when the thalli were cultured under high solar irradiance, such as dynamic photo inhibition and accumulation of carotenoids and UV-absorbing compounds. |
| Page(s): | 473-480 |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Appears in Collections: | IJMS Vol.43(04) [April 2014] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJMS 43(4) 473-480.pdf | 308.61 kB | Adobe PDF | View/Open |
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