Tianhao Wu, Cai Wang, Jing Cao, Ze-ying Hou, Zhaosheng Chu
{"title":"光与养分的耦合作用对不同深度微囊藻气体囊泡含量有影响","authors":"Tianhao Wu, Cai Wang, Jing Cao, Ze-ying Hou, Zhaosheng Chu","doi":"10.1093/plankt/fbad018","DOIUrl":null,"url":null,"abstract":"\n Lakes are important water resources for human beings, but Microcystis blooms pose a serious threat to drinking water security and aquatic ecosystems. Gas vesicles (GVs) are an important trigger for the occurrence of Microcystis blooms. To understand the effects of light and nutrients on GV content, the phytoplankton in Lake Erhai were investigated. The results showed that the average GV content in the surface water was higher than that in the deep water. The total nitrogen in water affected the GV content by limiting the protein content, and the content of GVs increased by 9.2 μm3/cell for each 1.0 pg/cell increase in the intracellular nitrogen content. Moreover, light and total phosphorus affected the GV content in deep water by limiting the energy supply, and the content of GVs increased by 52.4 μm3/cell for each 1.0 pg/cell increase in the intracellular phosphorus content. These results indicate that for lakes with low transparency, decreasing the total phosphorus concentration can reduce the GV content. Reducing the total nitrogen concentration can reduce the GV content and decrease the dominance of Microcystis in all lakes. This study provides useful information for the control of Microcystis.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":" ","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Coupling of light and nutrients affects Microcystis gas vesicle content at different depths\",\"authors\":\"Tianhao Wu, Cai Wang, Jing Cao, Ze-ying Hou, Zhaosheng Chu\",\"doi\":\"10.1093/plankt/fbad018\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n Lakes are important water resources for human beings, but Microcystis blooms pose a serious threat to drinking water security and aquatic ecosystems. Gas vesicles (GVs) are an important trigger for the occurrence of Microcystis blooms. To understand the effects of light and nutrients on GV content, the phytoplankton in Lake Erhai were investigated. The results showed that the average GV content in the surface water was higher than that in the deep water. The total nitrogen in water affected the GV content by limiting the protein content, and the content of GVs increased by 9.2 μm3/cell for each 1.0 pg/cell increase in the intracellular nitrogen content. Moreover, light and total phosphorus affected the GV content in deep water by limiting the energy supply, and the content of GVs increased by 52.4 μm3/cell for each 1.0 pg/cell increase in the intracellular phosphorus content. These results indicate that for lakes with low transparency, decreasing the total phosphorus concentration can reduce the GV content. Reducing the total nitrogen concentration can reduce the GV content and decrease the dominance of Microcystis in all lakes. This study provides useful information for the control of Microcystis.\",\"PeriodicalId\":16800,\"journal\":{\"name\":\"Journal of Plankton Research\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2023-05-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Plankton Research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1093/plankt/fbad018\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MARINE & FRESHWATER BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Plankton Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1093/plankt/fbad018","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
Coupling of light and nutrients affects Microcystis gas vesicle content at different depths
Lakes are important water resources for human beings, but Microcystis blooms pose a serious threat to drinking water security and aquatic ecosystems. Gas vesicles (GVs) are an important trigger for the occurrence of Microcystis blooms. To understand the effects of light and nutrients on GV content, the phytoplankton in Lake Erhai were investigated. The results showed that the average GV content in the surface water was higher than that in the deep water. The total nitrogen in water affected the GV content by limiting the protein content, and the content of GVs increased by 9.2 μm3/cell for each 1.0 pg/cell increase in the intracellular nitrogen content. Moreover, light and total phosphorus affected the GV content in deep water by limiting the energy supply, and the content of GVs increased by 52.4 μm3/cell for each 1.0 pg/cell increase in the intracellular phosphorus content. These results indicate that for lakes with low transparency, decreasing the total phosphorus concentration can reduce the GV content. Reducing the total nitrogen concentration can reduce the GV content and decrease the dominance of Microcystis in all lakes. This study provides useful information for the control of Microcystis.
期刊介绍:
Journal of Plankton Research publishes innovative papers that significantly advance the field of plankton research, and in particular, our understanding of plankton dynamics.