Cyanocidal Effect of H2O2 on the Bloom-Forming Microcystis aeruginosa and Sphaerospermopsis aphanizomenoides
Cyanobacterial blooms are a global concern causing water quality problems that have serious effects on recreational activities, irrigation, and drinking water usage. Various approaches are available to control cyanobacterial blooms in which Hydrogen Peroxide (H2 O2 ) emerges as a noteworthy environm...
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Istanbul University Press
2023-10-01
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| Series: | Aquatic Sciences and Engineering |
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| Online Access: | https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/C46BA26F388B41C79376F2BBCF48CBAB |
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| author | Latife Köker Emine Gözde Özbayram Ayça Oğuz Reyhan Akçaalan Albay Meriç Albay |
| author_facet | Latife Köker Emine Gözde Özbayram Ayça Oğuz Reyhan Akçaalan Albay Meriç Albay |
| author_sort | Latife Köker |
| collection | DOAJ |
| description | Cyanobacterial blooms are a global concern causing water quality problems that have serious effects on recreational activities, irrigation, and drinking water usage. Various approaches are available to control cyanobacterial blooms in which Hydrogen Peroxide (H2 O2 ) emerges as a noteworthy environmentally safe oxidizing agent selectively inhibiting the growth of cyanobacteria and leaving no residue. The objective of this study was to assess how different concentrations of H2 O2 (1, 2, and 4 mg L-1) affect the growth of unicellular Microcystis aeruginosa and filamentous Sphaerospermopsis aphanizomenoides cultures obtained from inland waters in Türkiye and to compare the effectiveness of H2 O2 application in monocultures and mixed cultures. For this purpose, the experimental setups were conducted in 96-well microtiter plates with eight replicates, and the growth of cultures during the experiment was monitored by measuring cell optical density at 665 nm (OD665). The results showed that 1 mg L-1 H2 O2 had a significant effect on the growth of monocultures of Microcystis with cell densities of 100x103 cell mL-1 (p<0.05) and Sphaerospermopsis with 50x103 cell mL-1. The cell growth of Microcystis cultures with higher densities declined at 4 mg L-1 H2 O2 addition, significantly. However, 4 mg L-1 H2 O2 dosage was effective up to 200x103 cell mL-1 Sphaerospermopsis. In the mixtures of these species, 2 mg L-1 H2 O2 application was effective to suppress the tested cell densities in the case of Microcystis dominance. |
| format | Article |
| id | doaj-art-ceb951584ecd433595ebc3ecbf4ed61c |
| institution | Kabale University |
| issn | 2602-473X |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Istanbul University Press |
| record_format | Article |
| series | Aquatic Sciences and Engineering |
| spelling | doaj-art-ceb951584ecd433595ebc3ecbf4ed61c2025-08-20T03:52:52ZengIstanbul University PressAquatic Sciences and Engineering2602-473X2023-10-0138420521110.26650/ASE20231320771123456Cyanocidal Effect of H2O2 on the Bloom-Forming Microcystis aeruginosa and Sphaerospermopsis aphanizomenoidesLatife Köker0https://orcid.org/0000-0002-9134-2801Emine Gözde Özbayram1https://orcid.org/0000-0002-5416-0611Ayça Oğuz2https://orcid.org/0000-0002-0711-2967Reyhan Akçaalan Albay3https://orcid.org/0000-0002-0756-8972Meriç Albay4https://orcid.org/0000-0001-9726-945Xİstanbul Üniversitesi, İstanbul, Türkiyeİstanbul Üniversitesi, İstanbul, Türkiyeİstanbul Üniversitesi, İstanbul, Türkiyeİstanbul Üniversitesi, İstanbul, Türkiyeİstanbul Üniversitesi, İstanbul, TürkiyeCyanobacterial blooms are a global concern causing water quality problems that have serious effects on recreational activities, irrigation, and drinking water usage. Various approaches are available to control cyanobacterial blooms in which Hydrogen Peroxide (H2 O2 ) emerges as a noteworthy environmentally safe oxidizing agent selectively inhibiting the growth of cyanobacteria and leaving no residue. The objective of this study was to assess how different concentrations of H2 O2 (1, 2, and 4 mg L-1) affect the growth of unicellular Microcystis aeruginosa and filamentous Sphaerospermopsis aphanizomenoides cultures obtained from inland waters in Türkiye and to compare the effectiveness of H2 O2 application in monocultures and mixed cultures. For this purpose, the experimental setups were conducted in 96-well microtiter plates with eight replicates, and the growth of cultures during the experiment was monitored by measuring cell optical density at 665 nm (OD665). The results showed that 1 mg L-1 H2 O2 had a significant effect on the growth of monocultures of Microcystis with cell densities of 100x103 cell mL-1 (p<0.05) and Sphaerospermopsis with 50x103 cell mL-1. The cell growth of Microcystis cultures with higher densities declined at 4 mg L-1 H2 O2 addition, significantly. However, 4 mg L-1 H2 O2 dosage was effective up to 200x103 cell mL-1 Sphaerospermopsis. In the mixtures of these species, 2 mg L-1 H2 O2 application was effective to suppress the tested cell densities in the case of Microcystis dominance.https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/C46BA26F388B41C79376F2BBCF48CBABcyanobacteria bloomhydrogen peroxidefreshwater management |
| spellingShingle | Latife Köker Emine Gözde Özbayram Ayça Oğuz Reyhan Akçaalan Albay Meriç Albay Cyanocidal Effect of H2O2 on the Bloom-Forming Microcystis aeruginosa and Sphaerospermopsis aphanizomenoides Aquatic Sciences and Engineering cyanobacteria bloom hydrogen peroxide freshwater management |
| title | Cyanocidal Effect of H2O2 on the Bloom-Forming Microcystis aeruginosa and Sphaerospermopsis aphanizomenoides |
| title_full | Cyanocidal Effect of H2O2 on the Bloom-Forming Microcystis aeruginosa and Sphaerospermopsis aphanizomenoides |
| title_fullStr | Cyanocidal Effect of H2O2 on the Bloom-Forming Microcystis aeruginosa and Sphaerospermopsis aphanizomenoides |
| title_full_unstemmed | Cyanocidal Effect of H2O2 on the Bloom-Forming Microcystis aeruginosa and Sphaerospermopsis aphanizomenoides |
| title_short | Cyanocidal Effect of H2O2 on the Bloom-Forming Microcystis aeruginosa and Sphaerospermopsis aphanizomenoides |
| title_sort | cyanocidal effect of h2o2 on the bloom forming microcystis aeruginosa and sphaerospermopsis aphanizomenoides |
| topic | cyanobacteria bloom hydrogen peroxide freshwater management |
| url | https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/C46BA26F388B41C79376F2BBCF48CBAB |
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