Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquaculture
Microcystis blooms in aquaculture present a significant threat to economic interests and human health. The method of ‘algae suppression’ has shown potential in mitigating these blooms, with the inhibitory capabilities of the introduced algal species playing a crucial role. Recent studies have highli...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Aquaculture Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352513424006677 |
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| author | Bo Yang Yuhua Li Zihan Wang Zhiguang Yue Junqi Wen Xueqin Zhao Hu Zhang Xianfeng Wang Xiufen Wang Man Zhang |
| author_facet | Bo Yang Yuhua Li Zihan Wang Zhiguang Yue Junqi Wen Xueqin Zhao Hu Zhang Xianfeng Wang Xiufen Wang Man Zhang |
| author_sort | Bo Yang |
| collection | DOAJ |
| description | Microcystis blooms in aquaculture present a significant threat to economic interests and human health. The method of ‘algae suppression’ has shown potential in mitigating these blooms, with the inhibitory capabilities of the introduced algal species playing a crucial role. Recent studies have highlighted the potential of algae belonging to the Scenedesmaceae family in inhibiting Microcystis blooms. In this study, 13 algal strains from this family were screened, revealing that two strains of Desmodesmus sp. (COFHNU-0002 and COFHNU-0005) isolated from aquaculture ponds exhibited the most robust inhibitory effects on Microcystis. The inhibitory effects of these two strains were evaluated at temperatures of 25°C and 30°C, demonstrating increased inhibition at higher temperatures. Moreover, their inhibitory effects were assessed in fishpond water experiencing a Microcystis bloom, with the highest inhibition rate achieved when the inoculated ratio of the Desmodesmus sp. (COFHNU-0005) to Microcystis was 1:1, reaching up to 67.0 %. Investigation into the inhibition mechanisms of Desmodesmus sp. on Microcystis revealed, for the first time, that the active substances responsible for inhibition originate from its extracellular vesicles. Furthermore, Desmodesmus sp. possessed a high content of proteins and polyunsaturated fatty acids, consequently providing additional value for fish in aquaculture. As a result, Desmodesmus sp. shows potential as a biological control agent for controlling harmful Microcystis blooms, providing innovative technological support for the advancement of aquaculture. |
| format | Article |
| id | doaj-art-cf7136b662564410aca9e50fbb9ba7f1 |
| institution | Kabale University |
| issn | 2352-5134 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj-art-cf7136b662564410aca9e50fbb9ba7f12025-02-06T05:12:12ZengElsevierAquaculture Reports2352-51342025-03-0140102579Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquacultureBo Yang0Yuhua Li1Zihan Wang2Zhiguang Yue3Junqi Wen4Xueqin Zhao5Hu Zhang6Xianfeng Wang7Xiufen Wang8Man Zhang9College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR ChinaCollege of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR ChinaInternational Department, The Affiliated Middle School of Henan Normal University, Xinxiang 453007, PR ChinaHenan Anjin Biotechnology Co., LTD., Zhumadian 463000, PR ChinaCollege of Fisheries, Henan Normal University, Xinxiang 453007, PR ChinaCollege of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR ChinaCollege of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR ChinaCollege of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR ChinaCollege of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR ChinaCollege of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China; Corresponding author at: College of Fisheries, Henan Normal University, Xinxiang 453007, PR China.Microcystis blooms in aquaculture present a significant threat to economic interests and human health. The method of ‘algae suppression’ has shown potential in mitigating these blooms, with the inhibitory capabilities of the introduced algal species playing a crucial role. Recent studies have highlighted the potential of algae belonging to the Scenedesmaceae family in inhibiting Microcystis blooms. In this study, 13 algal strains from this family were screened, revealing that two strains of Desmodesmus sp. (COFHNU-0002 and COFHNU-0005) isolated from aquaculture ponds exhibited the most robust inhibitory effects on Microcystis. The inhibitory effects of these two strains were evaluated at temperatures of 25°C and 30°C, demonstrating increased inhibition at higher temperatures. Moreover, their inhibitory effects were assessed in fishpond water experiencing a Microcystis bloom, with the highest inhibition rate achieved when the inoculated ratio of the Desmodesmus sp. (COFHNU-0005) to Microcystis was 1:1, reaching up to 67.0 %. Investigation into the inhibition mechanisms of Desmodesmus sp. on Microcystis revealed, for the first time, that the active substances responsible for inhibition originate from its extracellular vesicles. Furthermore, Desmodesmus sp. possessed a high content of proteins and polyunsaturated fatty acids, consequently providing additional value for fish in aquaculture. As a result, Desmodesmus sp. shows potential as a biological control agent for controlling harmful Microcystis blooms, providing innovative technological support for the advancement of aquaculture.http://www.sciencedirect.com/science/article/pii/S2352513424006677Harmful algal bloomsAquaculture‘Algae suppression’ methodExtracellular vesiclesBiological control agent |
| spellingShingle | Bo Yang Yuhua Li Zihan Wang Zhiguang Yue Junqi Wen Xueqin Zhao Hu Zhang Xianfeng Wang Xiufen Wang Man Zhang Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquaculture Aquaculture Reports Harmful algal blooms Aquaculture ‘Algae suppression’ method Extracellular vesicles Biological control agent |
| title | Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquaculture |
| title_full | Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquaculture |
| title_fullStr | Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquaculture |
| title_full_unstemmed | Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquaculture |
| title_short | Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquaculture |
| title_sort | strong inhibitory effects of desmodesmus sp on microcystis blooms potential as a biological control agent in aquaculture |
| topic | Harmful algal blooms Aquaculture ‘Algae suppression’ method Extracellular vesicles Biological control agent |
| url | http://www.sciencedirect.com/science/article/pii/S2352513424006677 |
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