Temperature-Dependent Regulation of Co-Occurring Toxins, Odor Compounds, and Disinfection By-Product Precursors in Two Bloom-Forming Species
文献类型：期刊论文
| 作者 | Shang, Lixia1,3; Deng, Yunyan1; Bai, Xiang2; Feng, Muhua3 |
| 刊名 | LIFE-BASEL
 |
| 出版日期 | 2025-12-17 |
| 卷号 | 15期号:12页码:22 |
| 关键词 | microcystins
trihalomethanes
haloacetic acids
|
| DOI | 10.3390/life15121933 |
| 通讯作者 | Shang, Lixia(lxshang@qdio.ac.cn) ; Feng, Muhua(mhfeng@niglas.ac.cn) |
| 英文摘要 | Cyanobacterial blooms pose significant threats to aquatic ecosystems and drinking water safety, primarily through the release of diverse secondary metabolites. This study systematically explored the dynamics of secondary metabolites in Microcystis aeruginosa and Anabaena sp. under controlled conditions, focusing on the effects of temperature (10 degrees C, 25 degrees C, 35 degrees C) and growth phases (exponential, stationary, decline). Key parameters measured included cell density, dissolved organic carbon (DOC), microcystins (MC-LR, MC-RR), taste and odor compounds (beta-cyclocitral, beta-ionone), and disinfection by-product formation potentials (trihalomethanes (THMs) and haloacetic acids (HAAs)). Results revealed striking interspecific differences: M. aeruginosa exhibited significantly higher metabolite production, with peak DOC, extracellular MC-LR, and particulate beta-cyclocitral observed in the decline phase at 25-35 degrees C. In contrast, Anabaena sp. showed an "early accumulation advantage" for THM precursors and "residual release" in the decline phase. Temperature played a critical regulatory role, with 25 degrees C as the optimal for most metabolites, while 35 degrees C enhanced extracellular release of dissolved beta-cyclocitral in M. aeruginosa. Growth phase dynamics were consistent across species, with stationary and decline phases marked by elevated metabolite concentrations due to intensified synthesis and cell lysis, particularly for HAAs. These findings highlight species-specific metabolic strategies and their environmental drivers, providing critical insights for assessing and managing cyanobacterial bloom risks in aquatic ecosystems. |
| WOS关键词 | ORGANIC-MATTER AOM ; CYANOBACTERIAL TOXINS ; NITROGEN-FIXATION ; MICROCYSTINS ; GENES ; ALGAE ; TASTE ; COAGULATION ; DEGRADATION ; PREDICTION |
| 资助项目 | Open Research Fund Program of the Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources[MED202304] ; National Natural Science Foundation of China[42206215] ; National Natural Science Foundation of China[42571142] ; National Natural Science Foundation of China[41877482] |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:001647466700001 |
| 出版者 | MDPI |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204529]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Shang, Lixia; Feng, Muhua |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Zibo Polytech Univ, Dept Pharmaceut & Bioengn, Zibo 255300, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shang, Lixia,Deng, Yunyan,Bai, Xiang,et al. Temperature-Dependent Regulation of Co-Occurring Toxins, Odor Compounds, and Disinfection By-Product Precursors in Two Bloom-Forming Species[J]. LIFE-BASEL,2025,15(12):22. |
| APA | Shang, Lixia,Deng, Yunyan,Bai, Xiang,&Feng, Muhua.(2025).Temperature-Dependent Regulation of Co-Occurring Toxins, Odor Compounds, and Disinfection By-Product Precursors in Two Bloom-Forming Species.LIFE-BASEL,15(12),22. |
| MLA | Shang, Lixia,et al."Temperature-Dependent Regulation of Co-Occurring Toxins, Odor Compounds, and Disinfection By-Product Precursors in Two Bloom-Forming Species".LIFE-BASEL 15.12(2025):22. |
入库方式： OAI收割
来源：海洋研究所
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