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Indian Journal of Experimental Biology (IJEB) >
IJEB Vol.44 [2006] >
IJEB Vol.44(04) [April 2006] >
| Title: | Effect of UV-B on photosynthesis, membrane lipids and MAAs in marine cyanobacterium, Phormidium corium (Agardh) Gomont |
| Authors: | Bhandari, Rupali
Sharma, Prabhat Kumar |
| Keywords: | Chlorophyll fluorescence
Cyanobacteria
Lipid peroxidation
Mycosporine like amino acids
Phosphoglycolipids
Sugars
UV-B radiation |
| Issue Date: | Apr-2006 |
| Publisher: | CSIR |
| Abstract: |
UV-B radiation (0.8±0.1 mW cm-2) and UV-B radiation supplemented with low
intensity PAR (~80 m mol m-2 s-1) affected photosynthesis at the
level of antenna system as well as PS II reaction centre (Fo and Fm
declined) in Phormidium corium (Agardh)
Gomont. UV-B radiation resulted in decline in sugar content, peroxidation of
membrane lipids as well as quantitative and qualitative changes in
phosphoglycolipids and neutral lipids. Fatty acid profile did not show any
qualitative changes due to the treatment, however, UV-B supplemented with low
PAR resulted in slightly higher level of unsaturation. P. corium synthesized MAAs in
response to UV-B. Quantity of MAAs increased
when UV-B treatment was supplemented with low level PAR.
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| Page(s): | 330-335 |
| ISSN: | 0975-1009 (Online); 0019-5189 (Print) |
| Source: | IJEB Vol.44(04) [April 2006]
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