Effects of nitrogen and phosphorus on Microcystis aeruginosa growth and microcystin production
In the present study, the effects of nitrogen (N) and phosphorus (P) on the growth of Microcystis aeruginosa and the production of microcystins (MCs) were investigated. The results showed that the growth of M. aeruginosa was not merely determined by N or P, but both nutrients were limiting for the s...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2022-01-01
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| Series: | Green Processing and Synthesis |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/gps-2022-0003 |
| _version_ | 1811236536609406976 |
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| author | Zhou Benjun Wang Zhen |
| author_facet | Zhou Benjun Wang Zhen |
| author_sort | Zhou Benjun |
| collection | DOAJ |
| description | In the present study, the effects of nitrogen (N) and phosphorus (P) on the growth of Microcystis aeruginosa and the production of microcystins (MCs) were investigated. The results showed that the growth of M. aeruginosa was not merely determined by N or P, but both nutrients were limiting for the species. Moreover, an excess of N and constant P in the culture medium could stimulate the growth of M. aeruginosa, whereas the growth of the species was inhibited in the culture medium containing excess of P and constant N. The optimal growth of M. aeruginosa was at an N:P ratio of 0.1 with the maximal optical density of 1.197 at 680 nm (OD680), whereas the maximal microcystin-LR (MC-LR) content of 228.2 μg·L−1 observed in the culture medium with an N:P ratio of 5. Interestingly, MC-LR production occurred under conditions of N starvation, thereby suggesting that the growth rate of M. aeruginosa was not related to MC-LR production under conditions of nutrient stress. |
| first_indexed | 2024-04-12T12:11:03Z |
| format | Article |
| id | doaj.art-38d60c2d62ca4be4a2f95234613e4c4d |
| institution | Directory Open Access Journal |
| issn | 2191-9550 |
| language | English |
| last_indexed | 2024-04-12T12:11:03Z |
| publishDate | 2022-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj.art-38d60c2d62ca4be4a2f95234613e4c4d2022-12-22T03:33:35ZengDe GruyterGreen Processing and Synthesis2191-95502022-01-01111647010.1515/gps-2022-0003Effects of nitrogen and phosphorus on Microcystis aeruginosa growth and microcystin productionZhou Benjun0Wang Zhen1School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, ChinaSchool of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, ChinaIn the present study, the effects of nitrogen (N) and phosphorus (P) on the growth of Microcystis aeruginosa and the production of microcystins (MCs) were investigated. The results showed that the growth of M. aeruginosa was not merely determined by N or P, but both nutrients were limiting for the species. Moreover, an excess of N and constant P in the culture medium could stimulate the growth of M. aeruginosa, whereas the growth of the species was inhibited in the culture medium containing excess of P and constant N. The optimal growth of M. aeruginosa was at an N:P ratio of 0.1 with the maximal optical density of 1.197 at 680 nm (OD680), whereas the maximal microcystin-LR (MC-LR) content of 228.2 μg·L−1 observed in the culture medium with an N:P ratio of 5. Interestingly, MC-LR production occurred under conditions of N starvation, thereby suggesting that the growth rate of M. aeruginosa was not related to MC-LR production under conditions of nutrient stress.https://doi.org/10.1515/gps-2022-0003microcystis aeruginosanitrogenphosphoruseutrophicationnutrient conditions |
| spellingShingle | Zhou Benjun Wang Zhen Effects of nitrogen and phosphorus on Microcystis aeruginosa growth and microcystin production Green Processing and Synthesis microcystis aeruginosa nitrogen phosphorus eutrophication nutrient conditions |
| title | Effects of nitrogen and phosphorus on Microcystis aeruginosa growth and microcystin production |
| title_full | Effects of nitrogen and phosphorus on Microcystis aeruginosa growth and microcystin production |
| title_fullStr | Effects of nitrogen and phosphorus on Microcystis aeruginosa growth and microcystin production |
| title_full_unstemmed | Effects of nitrogen and phosphorus on Microcystis aeruginosa growth and microcystin production |
| title_short | Effects of nitrogen and phosphorus on Microcystis aeruginosa growth and microcystin production |
| title_sort | effects of nitrogen and phosphorus on microcystis aeruginosa growth and microcystin production |
| topic | microcystis aeruginosa nitrogen phosphorus eutrophication nutrient conditions |
| url | https://doi.org/10.1515/gps-2022-0003 |
| work_keys_str_mv | AT zhoubenjun effectsofnitrogenandphosphorusonmicrocystisaeruginosagrowthandmicrocystinproduction AT wangzhen effectsofnitrogenandphosphorusonmicrocystisaeruginosagrowthandmicrocystinproduction |