Journal
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume 83, Issue 4, Pages 509-515Publisher
SPRINGER
DOI: 10.1007/s00128-009-9837-y
Keywords
Cyanobacteria; Phycobiliprotein; Light; Temperature; Salinity; pH; Pesticide; Heavy metals
Categories
Funding
- University of Grants Commission, New Delhi, India
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Among 18 strains, cyanobacterium Anabaena NCCU-9 contained the highest amount of phycobiliprotein (91 mg/g dry cell weights). Therefore, the effects of various environmental stresses were investigated on its phycobiliprotein production potential. The ideal conditions observed were 30A degrees C, 25 mu mol photons/m(2)/s, white light, pH-8, 16:8 light and dark regimes, nitrogen free medium and 10 mM sodium chloride. Among three pesticides studied malathion showed highest toxicity. Under heavy metal stress the order of toxicity was chromium > cadmium > lead > nickel > copper > zinc.
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