Research Interests:
Research Interests: Chemistry, Photosynthesis, Plant Biology, Biology, Environmental Biotechnology, and 13 moreChlorophyll Fluorescence, Applied Phycology, Pigments, Pigment, Fisheries Sciences, Phycobilisomes, Superoxide Dismutase, Antioxidant enzyme, Photosynthetic Pigment, Oxidative Damage, Photoprotection, UV-B radiation, and Cell Membrane
Research Interests: Plant Biology, Biology, Environmental Biotechnology, Chlorophyll Fluorescence, Applied Phycology, and 11 morePigments, Fisheries Sciences, Phycobilisomes, Superoxide Dismutase, Plant Interactions, Antioxidant enzyme, Photosynthetic Pigment, Oxidative Damage, Acclimatization, UV-B radiation, and Cell Membrane
Research Interests:
Research Interests:
UV-B radiation (0.8 +/- 0.1 mW cm(-2)) and UV-B radiation supplemented with low intensity PAR (approximately 80 micro mol m(-2) s(-1)) affected photosynthesis at the level of antenna system as well as PS II reaction centre (Fo and Fm... more
UV-B radiation (0.8 +/- 0.1 mW cm(-2)) and UV-B radiation supplemented with low intensity PAR (approximately 80 micro 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.
Research Interests:
Human activity is causing depletion of ozone in stratosphere, resulting in increased UV-B radiation and global warming. However, impact of these climatic changes on the aquatic organism (especially marine) is not fully understood. Here,... more
Human activity is causing depletion of ozone in stratosphere, resulting in increased UV-B radiation and global warming. However, impact of these climatic changes on the aquatic organism (especially marine) is not fully understood. Here, we have studied the effect of excess UV-B and visible radiation on photosynthetic pigments, fatty acids content, lipid peroxidation, nitrogen content, nitrogen reductase activity and membrane proteins, induction of mycosporine-like amino acids (MAAs) and antioxidant enzymes superoxide dismutase (SOD) and ascorbate peroxidase (APX) in freshwater (Nostoc spongiaeform) and marine (Phormidium corium) cyanobacteria. UV-B treatment resulted in an increase in photosynthetic pigments in Nostoc and decrease in Phormidium, but high light treatment caused photobleaching of most of the pigments in both the species. Unsaturation level of fatty acids of both total and glycolipids remained unchanged in both the cyanobacteria, as a result of UV-B and high light trea...
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... Vanessa Rodrigues1, Rupali Bhandari1, Jitendra P. Khurana2 and Prabhat Kumar Sharma1,* 1Department of Botany, Goa University, Goa 403 206, India 2Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi 110... more
... Vanessa Rodrigues1, Rupali Bhandari1, Jitendra P. Khurana2 and Prabhat Kumar Sharma1,* 1Department of Botany, Goa University, Goa 403 206, India 2Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi 110 021 ... 12. Swain, T., Flavonoids. ...