High-light-induced Changes on Photosynthesis, Pigments, Sugars, Lipids and Antioxidant Enzymes in Freshwater (Nostoc spongiaeforme) and Marine (Phormidium corium) Cyanobacteria From: Photochemistry and Photobiology | Date: May 1, 2006| Author: Sharma, Prabhat Kumar; Bhandari, Rupali | Copyright American Society for Photobiology May/Jun 2006. Provided by ProQuest LLC.Copyright information

ABSTRACT

We studied the effects of high-light exposure (500 µmol m^sup -2^ s^sup -1^ of photosynthetic active radiation) on the cyanobacteria Nostoc spongiaeforme Agardh, a fresh-water alga, and Phormidium corium Agardh (Gomont), a marine alga, with respect to photosynthesis, pigments, sugar content, lipid peroxidation, fatty acids composition, antioxidant enzymes activity and DNA. It was seen that the ratio of variable fluorescence (Fv) to maximum fluorescence (Fm), which is indicati...