Volume 2, Issue 1 (2013)
JFST 2013, 2(1): 13-23 |
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pourafrasiabi M, Ramezanpour Z, Imanpour namin J, sadeghi rad M. Effects of temperature and light intensity on cell concentration and growth rate of Dunaliella salina Teodoresco. JFST 2013; 2 (1) :13-23
URL: http://jfst.modares.ac.ir/article-6-1169-en.html
URL: http://jfst.modares.ac.ir/article-6-1169-en.html
Abstract: (10093 Views)
Cell concentrations and growth rate of Dunaliella salina Teodoresco in light intensities e. g. 50 and 150 µmol. photons.m-2.s-1 and temperatures 25 ± 0.5 and 31 ± 0.5 oC (Mean ± SD) were studied. The algae was isolated from the Urumieh Lake and cultured in various treatments (n=12). Algae cells were counted regularly using Thoma counting chamber in 3 replicates on daily basis. The curve of changes in population was plotted. The specific growth rate (SGR; d-1) was calculated and compared within treatments by means of two ways ANOVA Analysis. The highest cell concentration (Mean ± SD) 4.8 ± 0.6 × 10 6 cell.ml-1 was observed in light intensity of 150 µmol. photons.m-2.s-1 and temperature 25 ± 0.5 oC. The minimum cell concentration (2.8 ± 0.3 × 10 6 cell.ml-1) was observed in light intensity of 50 µmol. photons.m-2.s-1 and temperature 31 ± 0.5 oC. Specific growth rate showed significant differences in various treatments (P
Article Type: Research Article |
Subject:
Aquatic Genetic and biotechnology
Received: 2012/09/6 | Published: 2013/05/22
Received: 2012/09/6 | Published: 2013/05/22
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