Mathematical modeling of Microcystis aeruginosa growth and [D-Leu1] microcystin-LR production in culture media at different temperatures
| Autor: | Rosso Lorena, Giannuzzi Leda, Goñi Sandro, Andrinolo Dario, Sedan Daniela, Aranda Jorge Oswaldo, Crettaz Minaglia Melina Celeste |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Cyanobacteria Specific growth Gompertz function Cianobacterias Microcystin-LR Plant Science Activation energy Aquatic Science cyanobacteria 01 natural sciences MICROCYSTINS Microbiology MATHEMATICAL MODELLING Ciencias Biológicas 03 medical and health sciences chemistry.chemical_compound Microcystis aeruginosa Food science TEMPERATURE Ciencias Exactas Strain (chemistry) biology 010604 marine biology & hydrobiology modelado temperature microcystins CYANOBACTERIA Biología Marina Limnología biology.organism_classification Phase duration Microcistinas 030104 developmental biology chemistry matematical modelling CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP |
| Popis: | The effect of temperature (26 °C, 28 °C, 30 °C and 35 °C) on the growth of native CAAT-3-2005 Microcystis aeruginosa and the production of Chlorophyll-a (Chl-a) and Microcystin-LR (MC-LR) were examined through laboratory studies. Kinetic parameters such as specific growth rate (μ), lag phase duration (LPD) and maximum population density (MPD) were determined by fitting the modified Gompertz equation to the M. aeruginosa strain cell count (cells mL⁻¹). A 4.8-fold increase in μ values and a 10.8-fold decrease in the LPD values were found for M. aeruginosa growth when the temperature changed from 15 °C to 35 °C. The activation energy of the specific growth rate (Eμ) and of the adaptation rate (E1/LPD) were significantly correlated (R² = 0.86). The cardinal temperatures estimated by the modified Ratkowsky model were minimum temperature = 8.58 ± 2.34 °C, maximum temperature = 45.04 ± 1.35 °C and optimum temperature = 33.39 ± 0.55 °C. Mathematical modeling of Microcystis aeruginosa growth and [D-Leu 1 ] microcystin-LR production in culture media at different temperatures. Facultad de Ciencias Exactas |
| Databáze: | OpenAIRE |
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