Characteristics of Fluorescence Spectra, UV Spectra, and Specific Growth Rates during the Outbreak of Toxic <i>Microcystis Aeruginosa</i> FACHB-905 and Non-Toxic FACHB-469 under Different Nutrient Conditions in a Eutrophic Microcosmic Simulation Device
<i>Microcystis aeruginosa</i> is the dominant alga forming cyanobacteria blooms, the growth of which is limited by available nutrients. Thus, it is necessary to study cyanobacteria blooms and explore the growth of <i>Microcystis aeruginosa</i> under different nutrient conditi...
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MDPI AG
2020-08-01
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| Online Access: | https://www.mdpi.com/2073-4441/12/8/2305 |
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| author | Qi Wang Wenjing Pang ShuJie Ge Hengguo Yu Chuanjun Dai Xianfeng Huang Jun Li Min Zhao |
| author_facet | Qi Wang Wenjing Pang ShuJie Ge Hengguo Yu Chuanjun Dai Xianfeng Huang Jun Li Min Zhao |
| author_sort | Qi Wang |
| collection | DOAJ |
| description | <i>Microcystis aeruginosa</i> is the dominant alga forming cyanobacteria blooms, the growth of which is limited by available nutrients. Thus, it is necessary to study cyanobacteria blooms and explore the growth of <i>Microcystis aeruginosa</i> under different nutrient conditions. In this paper, we take <i>Microcystis aeruginosa</i>, including toxic Freshwater Algae Culture of Hydrobiology Collection (FACHB)-905 and non-toxic FACHB-469 strains, into account. The strains were cultured using a simulation device under different nutrient conditions. Ultraviolet spectra, three-dimensional fluorescence spectra, and kinetic parameter indicators of the two species are studied. Compared to FACHB-469, the results show that the specific growth rate of FACHB-905 is much higher, in particular, FACHB-905 is the dominant species under low nutrient conditions. Furthermore, the UV spectral characteristics indicate that the molecular weight of dissolved organic matter in the culture tank of toxic FACHB-905 is greater than that of FACHB-469. Additionally, the humification index of toxic FACHB-905 is slightly higher as well, which suggests that it is more stable in the presence of dissolved organic matter during blooms. Therefore, the toxic <i>Microcystis</i> strain is more likely to become the dominant species in water blooms under lower eutrophic conditions and water blooms formed by the toxic <i>Microcystis</i> strain may be more difficult to recover from. |
| first_indexed | 2024-03-10T17:18:08Z |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-10T17:18:08Z |
| publishDate | 2020-08-01 |
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| series | Water |
| spelling | doaj.art-49ab314c96844dfb9fd84fc8d8faab0b2023-11-20T10:25:00ZengMDPI AGWater2073-44412020-08-01128230510.3390/w12082305Characteristics of Fluorescence Spectra, UV Spectra, and Specific Growth Rates during the Outbreak of Toxic <i>Microcystis Aeruginosa</i> FACHB-905 and Non-Toxic FACHB-469 under Different Nutrient Conditions in a Eutrophic Microcosmic Simulation DeviceQi Wang0Wenjing Pang1ShuJie Ge2Hengguo Yu3Chuanjun Dai4Xianfeng Huang5Jun Li6Min Zhao7College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, ChinaCollege of Life and Environmental Science, Wenzhou University, Wenzhou 325035, ChinaCollege of Life and Environmental Science, Wenzhou University, Wenzhou 325035, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Department of Environmental Science, Wenzhou University, Wenzhou 325035, ChinaCollege of Life and Environmental Science, Wenzhou University, Wenzhou 325035, ChinaCollege of Life and Environmental Science, Wenzhou University, Wenzhou 325035, ChinaCollege of Life and Environmental Science, Wenzhou University, Wenzhou 325035, ChinaCollege of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China<i>Microcystis aeruginosa</i> is the dominant alga forming cyanobacteria blooms, the growth of which is limited by available nutrients. Thus, it is necessary to study cyanobacteria blooms and explore the growth of <i>Microcystis aeruginosa</i> under different nutrient conditions. In this paper, we take <i>Microcystis aeruginosa</i>, including toxic Freshwater Algae Culture of Hydrobiology Collection (FACHB)-905 and non-toxic FACHB-469 strains, into account. The strains were cultured using a simulation device under different nutrient conditions. Ultraviolet spectra, three-dimensional fluorescence spectra, and kinetic parameter indicators of the two species are studied. Compared to FACHB-469, the results show that the specific growth rate of FACHB-905 is much higher, in particular, FACHB-905 is the dominant species under low nutrient conditions. Furthermore, the UV spectral characteristics indicate that the molecular weight of dissolved organic matter in the culture tank of toxic FACHB-905 is greater than that of FACHB-469. Additionally, the humification index of toxic FACHB-905 is slightly higher as well, which suggests that it is more stable in the presence of dissolved organic matter during blooms. Therefore, the toxic <i>Microcystis</i> strain is more likely to become the dominant species in water blooms under lower eutrophic conditions and water blooms formed by the toxic <i>Microcystis</i> strain may be more difficult to recover from.https://www.mdpi.com/2073-4441/12/8/2305cyanobacteria blooms<i>Microcystis aeruginosa</i>ultraviolet spectrathree-dimensional fluorescence spectraspecific growth rate |
| spellingShingle | Qi Wang Wenjing Pang ShuJie Ge Hengguo Yu Chuanjun Dai Xianfeng Huang Jun Li Min Zhao Characteristics of Fluorescence Spectra, UV Spectra, and Specific Growth Rates during the Outbreak of Toxic <i>Microcystis Aeruginosa</i> FACHB-905 and Non-Toxic FACHB-469 under Different Nutrient Conditions in a Eutrophic Microcosmic Simulation Device Water cyanobacteria blooms <i>Microcystis aeruginosa</i> ultraviolet spectra three-dimensional fluorescence spectra specific growth rate |
| title | Characteristics of Fluorescence Spectra, UV Spectra, and Specific Growth Rates during the Outbreak of Toxic <i>Microcystis Aeruginosa</i> FACHB-905 and Non-Toxic FACHB-469 under Different Nutrient Conditions in a Eutrophic Microcosmic Simulation Device |
| title_full | Characteristics of Fluorescence Spectra, UV Spectra, and Specific Growth Rates during the Outbreak of Toxic <i>Microcystis Aeruginosa</i> FACHB-905 and Non-Toxic FACHB-469 under Different Nutrient Conditions in a Eutrophic Microcosmic Simulation Device |
| title_fullStr | Characteristics of Fluorescence Spectra, UV Spectra, and Specific Growth Rates during the Outbreak of Toxic <i>Microcystis Aeruginosa</i> FACHB-905 and Non-Toxic FACHB-469 under Different Nutrient Conditions in a Eutrophic Microcosmic Simulation Device |
| title_full_unstemmed | Characteristics of Fluorescence Spectra, UV Spectra, and Specific Growth Rates during the Outbreak of Toxic <i>Microcystis Aeruginosa</i> FACHB-905 and Non-Toxic FACHB-469 under Different Nutrient Conditions in a Eutrophic Microcosmic Simulation Device |
| title_short | Characteristics of Fluorescence Spectra, UV Spectra, and Specific Growth Rates during the Outbreak of Toxic <i>Microcystis Aeruginosa</i> FACHB-905 and Non-Toxic FACHB-469 under Different Nutrient Conditions in a Eutrophic Microcosmic Simulation Device |
| title_sort | characteristics of fluorescence spectra uv spectra and specific growth rates during the outbreak of toxic i microcystis aeruginosa i fachb 905 and non toxic fachb 469 under different nutrient conditions in a eutrophic microcosmic simulation device |
| topic | cyanobacteria blooms <i>Microcystis aeruginosa</i> ultraviolet spectra three-dimensional fluorescence spectra specific growth rate |
| url | https://www.mdpi.com/2073-4441/12/8/2305 |
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