Effects of light intensity and temperature on photoautotrophic growth of a green microalga, Chlorococcum littorale
| Autor: | Hiroshi Inomata, Yoshiyuki Sato, Motohiro Takenaka, Richard L. Smith, Masaki Ota |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Arrhenius equation
Specific growth Atmospheric pressure Cell growth lcsh:Biotechnology Logarithmic growth Chlorococcum littorale Analytical chemistry Biology Applied Microbiology and Biotechnology Algal growth symbols.namesake Light intensity Phase (matter) lcsh:TP248.13-248.65 Botany symbols Microalgae Biotechnology |
| Zdroj: | Biotechnology Reports, Vol 7, Iss C, Pp 24-29 (2015) |
| ISSN: | 2215-017X |
| DOI: | 10.1016/j.btre.2015.05.001 |
| Popis: | A highly CO2-tolerant green alga, Chlorococcum littorale, was investigated at temperatures ranging from 8 to 28 °C, light intensities from 30 to 170 μmol m−2 s−1, a constant CO2 concentration of 5% (v/v) and atmospheric pressure. The experimental results showed that a specific growth rate μ, defined in terms of cell growth rate under a logarithmic growth phase, increased with temperature up to the maximum value (ca. 22 °C), while the μ decreased at higher temperatures. These promotion and inhibition of the cell growth rate were expressed by both a multiple linear regression and a mathematical model taking account of the Arrhenius activation/deactivation energies. Light intensity affected on the cell growth was independently treated in the mathematical model. The proposed growth model agreed well with the experimental data to within 6.6 %, which provides good correlation for both temperature and light intensity effects on the microalgal cell growth. |
| Databáze: | OpenAIRE |
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