Double effects of mitigating cyanobacterial blooms using modified clay technology: regulation and optimization of the microbial community structure
Harmful algal blooms (HABs) are global hazards under global climate change and eutrophication conditions. Modified clay (MC) method is widely used to control HABs in Asian and American coastal waters. However, little research has been conducted on the underlying mechanisms by which MC controls bloom...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-11-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1480069/full |
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| author | Jianan Zhu Jianan Zhu Zhiming Yu Zhiming Yu Zhiming Yu Xihua Cao Xihua Cao Xihua Cao Wenbin Jiang Wenbin Jiang Liyan He Liyan He Xiaomiao Zang Xiaomiao Zang Xiuxian Song Xiuxian Song Xiuxian Song |
| author_facet | Jianan Zhu Jianan Zhu Zhiming Yu Zhiming Yu Zhiming Yu Xihua Cao Xihua Cao Xihua Cao Wenbin Jiang Wenbin Jiang Liyan He Liyan He Xiaomiao Zang Xiaomiao Zang Xiuxian Song Xiuxian Song Xiuxian Song |
| author_sort | Jianan Zhu |
| collection | DOAJ |
| description | Harmful algal blooms (HABs) are global hazards under global climate change and eutrophication conditions. Modified clay (MC) method is widely used to control HABs in Asian and American coastal waters. However, little research has been conducted on the underlying mechanisms by which MC controls blooms in freshwater environments. Herein, experiments and bioinformatics analyses were conducted for MC-based control of freshwater blooms in a closed water body with an area of approximately 240 m2 in the Fuchun River, China. Results revealed that the dominant bloom species were Microcystis, and an 87.68–97.01% removal efficiency of whole algal biomass was achieved after 3 h of MC treatment. The weaker zeta potentials of Microcystis species and hydrophilic groups such as O-H and P-O-P in the extracellular polymeric substances (EPS) surrounding Microcystis cells made them easier to be flocculated and removed by MC particles, and the relative abundance of Microcystis decreased to 29.12% and that of Cyanobium increased to 40.97%. Therefore, MC changes the cyanobacterial community structure, which is accompanied by the elimination of Microcystis sp. apical dominance and enhanced competition between Cyanobium and Microcystis in the phytoplankton community, increasing cyanobacterial community diversity. Under MC treatment, residual microorganisms, including cyanobacteria, had a high potential for DNA damage repair and were more likely to survive after being subjected to oxidative stress. In the meanwhile, the abundance of genes involved in genetic information processing, signal transduction, and photosynthesis was decreased indicating that the residual microbiome was week in proliferation and light energy harvesting. Therefore, accompanied with the destruction of Microcystis colonies, MC changes the function of cyanobacteria and phycosphere microbiome, further hindering bloom development. These findings illustrate that MC can regulate and optimize the microbial community structure through which MC controls cyanobacterial blooms in ecosystems. |
| format | Article |
| id | doaj-art-5598d051f444477c8b298bb074f7bd65 |
| institution | OA Journals |
| issn | 1664-302X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj-art-5598d051f444477c8b298bb074f7bd652025-08-20T02:18:58ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2024-11-011510.3389/fmicb.2024.14800691480069Double effects of mitigating cyanobacterial blooms using modified clay technology: regulation and optimization of the microbial community structureJianan Zhu0Jianan Zhu1Zhiming Yu2Zhiming Yu3Zhiming Yu4Xihua Cao5Xihua Cao6Xihua Cao7Wenbin Jiang8Wenbin Jiang9Liyan He10Liyan He11Xiaomiao Zang12Xiaomiao Zang13Xiuxian Song14Xiuxian Song15Xiuxian Song16CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaHarmful algal blooms (HABs) are global hazards under global climate change and eutrophication conditions. Modified clay (MC) method is widely used to control HABs in Asian and American coastal waters. However, little research has been conducted on the underlying mechanisms by which MC controls blooms in freshwater environments. Herein, experiments and bioinformatics analyses were conducted for MC-based control of freshwater blooms in a closed water body with an area of approximately 240 m2 in the Fuchun River, China. Results revealed that the dominant bloom species were Microcystis, and an 87.68–97.01% removal efficiency of whole algal biomass was achieved after 3 h of MC treatment. The weaker zeta potentials of Microcystis species and hydrophilic groups such as O-H and P-O-P in the extracellular polymeric substances (EPS) surrounding Microcystis cells made them easier to be flocculated and removed by MC particles, and the relative abundance of Microcystis decreased to 29.12% and that of Cyanobium increased to 40.97%. Therefore, MC changes the cyanobacterial community structure, which is accompanied by the elimination of Microcystis sp. apical dominance and enhanced competition between Cyanobium and Microcystis in the phytoplankton community, increasing cyanobacterial community diversity. Under MC treatment, residual microorganisms, including cyanobacteria, had a high potential for DNA damage repair and were more likely to survive after being subjected to oxidative stress. In the meanwhile, the abundance of genes involved in genetic information processing, signal transduction, and photosynthesis was decreased indicating that the residual microbiome was week in proliferation and light energy harvesting. Therefore, accompanied with the destruction of Microcystis colonies, MC changes the function of cyanobacteria and phycosphere microbiome, further hindering bloom development. These findings illustrate that MC can regulate and optimize the microbial community structure through which MC controls cyanobacterial blooms in ecosystems.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1480069/fullcyanobacterial bloommodified claybloom controlphytoplankton community structurefunction of microbiome |
| spellingShingle | Jianan Zhu Jianan Zhu Zhiming Yu Zhiming Yu Zhiming Yu Xihua Cao Xihua Cao Xihua Cao Wenbin Jiang Wenbin Jiang Liyan He Liyan He Xiaomiao Zang Xiaomiao Zang Xiuxian Song Xiuxian Song Xiuxian Song Double effects of mitigating cyanobacterial blooms using modified clay technology: regulation and optimization of the microbial community structure Frontiers in Microbiology cyanobacterial bloom modified clay bloom control phytoplankton community structure function of microbiome |
| title | Double effects of mitigating cyanobacterial blooms using modified clay technology: regulation and optimization of the microbial community structure |
| title_full | Double effects of mitigating cyanobacterial blooms using modified clay technology: regulation and optimization of the microbial community structure |
| title_fullStr | Double effects of mitigating cyanobacterial blooms using modified clay technology: regulation and optimization of the microbial community structure |
| title_full_unstemmed | Double effects of mitigating cyanobacterial blooms using modified clay technology: regulation and optimization of the microbial community structure |
| title_short | Double effects of mitigating cyanobacterial blooms using modified clay technology: regulation and optimization of the microbial community structure |
| title_sort | double effects of mitigating cyanobacterial blooms using modified clay technology regulation and optimization of the microbial community structure |
| topic | cyanobacterial bloom modified clay bloom control phytoplankton community structure function of microbiome |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1480069/full |
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