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ALGAE > Volume 26(1); 2011 > Article
ALGAE 2011;26(1): 73-77. doi: https://doi.org/DOI: 10.4490/algae.2011.26.1.0
Growth characteristics of bloom forming Mallomonas elongata (Synurophyceae) based on silicate and light intensity
Han Soon Kim1,* and Kyung Lak Lee2

1Department of Biology, Kyungpook National University, Daegu 702-701, Korea
2Department of Forensic Medicine, National Institute of Scientific Investigation, Seoul 158-707, Korea
*Corresponding Author  Email: kimhsu@knu.ac.kr
ABSTRACT
A dominant planktonic bloom-forming species, Mallomonas elongata was isolated from a small shallow eutrophic pond. The growth characteristics of this species on variable silicate concentrations and light intensities were investigated in laboratory unialgal cultures. In culture condition of 15°C, the maximum population growth and the highest growth rate of M. elongata occurred at a light intensity of 80 μmol m-2 s-1, and in culture condition of 18°C, it exhibited the maximum population growth and the highest growth rates at a light intensity of 50 μmol m-2 s-1. Silicate concentration had no effect on the population growth and growth rate of M. elongata.
Key words: bloom forming species; growth rate; light intensity; Mallomonas elongata; silicate; unialgal culture


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