Screening of cyanobacteria for phycobiliproteins and effect of different environmental stress on its yield.
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 30 degrees C, 25 micromol photons/m2/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.
Hemlata
Department of Biosciences, Jamia Millia Islamia (Central University), New Delhi 110025, India.
Fatma
Tasneem
T
D017033:Anabaena / Q000737:chemistry*; D019216:Metals, Heavy / Q000633:toxicity*; D010575:Pesticides / Q000633:toxicity; D052979:Phycobiliproteins / Q000032:analysis / Q000378:metabolism*; D013312:Stress, Physiological; D014873:Water Pollutants / Q000633:toxicity*
D019216:Metals, Heavy; D010575:Pesticides; D052979:Phycobiliproteins; D014873:Water Pollutants