Characteristics of Chlorophyll Formation of the Aerial Microalga Coelastrella striolata var. multistriata and Its Application for Environmental Biomonitoring(ENVIRONMENTAL BIOTECHNOLOGY)
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概要
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The growth and ammonium uptake of the aerial microalga Coelastrella striolata var. multistriata, which was isolated from the surface of rocks, were characterized in this study. The specific growth rate of the alga wasμ=0.3 d^<-1>, as calculated in the growth logarithmic phase. The algal cells were able to remove almost 100% of the ammonium ions from medium in 5 d, with the removal rate of ammonium-N being 0.4 mg/l/h. It was shown that the alga has a unique ability to be a reddish orange to green color depending on the nitrogen source concentration in the medium. Astaxanthin, adonixanthin, canthaxanthin, and β-carotene were found in the reddish orange cells of the alga. The assessment of water pollution was attempted using this aerial microalga. When the reddish orange alga was incubated in the experimental medium with added ammonium-, nitrate-, or urea-N as a nitrogen source, an approximately linear relationship existed between the nitrogen concentration and chlorophyll formation. Using the chlorophyll formation of the alga, for example, it was possible to estimate spectrophotometrically the total nitrogen content in water collected from aquatic systems. Biofunctional materials for environmental biomonitoring using photosynthetic microorganisms are called green devices in this study.
- 公益社団法人日本生物工学会の論文
- 2004-07-25
著者
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Takizawa Hiroyuki
Integrated Information Processing Center Niigata University
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TAKIZAWA Hiroyuki
Department of Computer and Mathematical Sciences, Graduate School of Information Sciences, Tohoku Un
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Abe Katsuya
Department Of Applied Chemistry Faculty Of Engineering Kogakuin University
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Hirano M
Department Of Applied Chemistry Faculty Of Engineering Kogakuin University
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Hirano Morio
Department Of Applied Chemistry Faculty Of Engineering Kogakuin University
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Takizawa H
Department Of Applied Chemistry Faculty Of Engineering Kogakuin University
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KIMURA SEIKO
Department of Applied Chemistry, Faculty of Engineering, Kogakuin University
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Kimura Seiko
Department Of Applied Chemistry Faculty Of Engineering Kogakuin University
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Takizawa Hiroyuki
Department of Applied Chemistry, Faculty of Engineering, Kogakuin University
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