1
|
Li H, Jiang M, Li P, Xu Z, Jiang P, Chen L, Gin KYH, He Y. Picocyanobacterial-bacterial interactions sustain cyanobacterial blooms in nutrient-limited aquatic environments. ENVIRONMENTAL RESEARCH 2024; 260:119508. [PMID: 38945511 DOI: 10.1016/j.envres.2024.119508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 06/25/2024] [Accepted: 06/27/2024] [Indexed: 07/02/2024]
Abstract
Cyanobacterial blooms (CBs) and concomitant water quality issues in oligotrophic/mesotrophic waters have been recently reported, challenging the conventional understanding that CBs are primarily caused by eutrophication. To elucidate the underlying mechanism of CBs in nutrition-deficient waters, the changes in Chlorophyll a (Chl-a), cyanobacterial-bacterial community composition, and certain microbial function in Qingcaosha Reservoir, the global largest tidal estuary storage reservoir, were analyzed systematically and comprehensively after its pilot run (2011-2019) in this study. Although the water quality was improved and stabilized, more frequent occurrences of bloom level of Chl-a (>20 μg L-1) in warm seasons were observed during recent years. The meteorological changes (CO2, sunshine duration, radiation, precipitation, evaporation, and relative humidity), water quality variations (pH, total organic carbon content, dissolved oxygen, and turbidity), accumulated sediments as an endogenous source, as well as unique estuarine conditions collectively facilitated picocyanobacterial-bacterial coexistence and community functional changes in this reservoir. A stable and tight co-occurrence pattern was established between dominant cyanobacteria (Synechococcus, Cyanobium, Planktothrix, Chroococcidiopsis, and Prochlorothrix) and certain heterotrophic bacteria (Proteobacteria, Actinobacteria, and Bacteroidetes), which contributed to the remineralization of organic matter for cyanobacteria utilization. The relative abundance of chemoorganoheterotrophs and bacteria related to nitrogen transformation (Paracoccus, Rhodoplanes, Nitrosomonas, and Zoogloea) increased, promoting the emergence of CBs in nutrient-limited conditions through enhanced nutrient recycling. In environments with limited nutrients, the interaction between photosynthetic autotrophic microorganisms and heterotrophic bacteria appears to be non-competitive. Instead, they adopt complementary roles within their ecological niche over long-term succession, mutually benefiting from this association. This long-term study confirmed that enhanced nutrient cycling, facilitated by cyanobacterial-bacterial symbiosis following long-term succession, could promote CBs in oligotrophic aquatic environments devoid of external nutrient inputs. This study advances understanding of the mechanisms that trigger and sustain CBs under nutritional constraints, contributing to developing more effective mitigation strategies, ensuring water safety, and maintaining ecological balance.
Collapse
Affiliation(s)
- Huimin Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China
| | - Mengqi Jiang
- Center for Ecological Research, Kyoto University, Shiga, 520-2113, Japan
| | - Peng Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China
| | - Zheng Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China
| | - Peng Jiang
- Department of Industrial Engineering and Management, Sichuan University, Chengdu, 610064, PR China
| | - Lei Chen
- Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd., Shanghai, 200082, PR China
| | - Karina Yew-Hoong Gin
- National University of Singapore Environmental Research Institute, National University of Singapore, 1 Create Way, #15-02, Singapore, 138602, Singapore
| | - Yiliang He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China.
| |
Collapse
|
2
|
Lee JH, Lee KL, Kim HS. Phytoplankton functional groups as indicators of environmental changes in weir and non-weir sections of the lower Nakdong River, Republic of Korea. Heliyon 2024; 10:e22966. [PMID: 38163226 PMCID: PMC10756969 DOI: 10.1016/j.heliyon.2023.e22966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 11/13/2023] [Accepted: 11/22/2023] [Indexed: 01/03/2024] Open
Abstract
The Nakdong River underwent water impoundment after eight weirs were constructed as part of South Korea's Four Major River Restoration Project from 2009 to 2012. In this study, we aimed to confirm whether the assemblage of phytoplankton based on phytoplankton functional groups (PFGs), could indicate environmental changes in the weir section (WS) and non-weir section (NWS) of the lower Nakdong River after the construction of the weir. Thus, we examined the relationships between PFGs and gradients in environmental drivers, such as physicochemical, meteorological, and hydrological variables. Environmental gradients were observed between the WS and NWS in dissolved oxygen (DO), electric conductivity (EC), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP), dissolved total nitrogen (DTN), dissolved total phosphorus (DTP), ammonia nitrogen (NH3-N), nitrate nitrogen (NO3-N), and phosphorus (PO4-P), which were relatively higher in the WS. Seventeen PFGs were identified (A, B, C, D, E, F, G, H1, J, LM, LO, MP, P, T, W1, X1, and X2). Additionally, the LM and P groups, preferring an enriched lentic system more than other groups, were found to be the dominant PFGs that led the succession of assemblages. Traditional nutrients (N, P) and organic pollutants (BOD, COD) primarily affected the autochthonous growth of the most dominant PFGs in the WS as HRT (hydraulic retention time) increased. Furthermore, the hydrological variables associated with meteorological conditions have a synergistic effect on the composition of the major PFGs and chemical and physical variables in the WS. In other words, the WS may be a new source of inoculum that primarily determines the occurrence and maintenance of phytoplankton in the immediate downstream region (NWS). In particular, group LM (mainly potentially toxic Microcystis) developing in the upper weir impoundment is transported downstream, resulting in a high inoculation effect on further growth in the NWS during the summer monsoon season.
Collapse
Affiliation(s)
- Jae Hak Lee
- Department of Biology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Kyung-Lak Lee
- Environmental Engineering Research Division, National Institute of Environmental Research, Incheon, 22689, Republic of Korea
| | - Han Soon Kim
- Department of Biology, Kyungpook National University, Daegu, 41566, Republic of Korea
| |
Collapse
|
3
|
Yan G, Fu L, Ming H, Chen C, Zhou D. Exploring an Efficient and Eco-Friendly Signaling Molecule and Its Quorum Quenching Ability for Controlling Microcystis Blooms. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:16929-16939. [PMID: 37665318 DOI: 10.1021/acs.est.3c02395] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Globally, cyanobacterial blooms have become serious problems in eutrophic water. Most previous studies have focused on environmental factors but have neglected the role of quorum sensing (QS) in bloom development and control. This study explored a key quorum sensing molecule (QSM) that promotes cell growth and then proposed a targeted quorum quencher to control blooms. A new QSM 3-OH-C4-HSL was identified with high-resolution mass spectrometry. It was found to regulate cellular carbon metabolism and energy metabolism as a means to promote Microcystis aeruginosa growth. To quench the QS induced by 3-OH-C4-HSL, three furanone-like inhibitors were proposed based on molecular structure, of which dihydro-3-amino-2-(3H)-furanone (FN) at a concentration of 20 μM exhibited excellent inhibition of M. aeruginosa growth (by 67%). Molecular docking analysis revealed that the inhibitor strongly occupied the QSM receptor protein LuxR by binding with Asn164(A) and His167(A) via two hydrogen bonds (the bond lengths were 3.04 and 4.04 Å) and the binding energy was -5.9 kcal/mol. The inhibitor blocked signaling regulation and induced programmed cell death in Microcystis. Importantly, FN presented little aquatic biotoxicity and negligibly affected aquatic microbial function. This study provides a promising new and eco-friendly strategy for controlling cyanobacterial blooms.
Collapse
Affiliation(s)
- Ge Yan
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China
- Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China
| | - Liang Fu
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China
- Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China
| | - Hao Ming
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China
- Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China
| | - Congli Chen
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China
- Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China
| | - Dandan Zhou
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China
- Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China
| |
Collapse
|
4
|
Zhao H, Zhou Y, Wu H, Kutser T, Han Y, Ma R, Yao Z, Zhao H, Xu P, Jiang C, Gu Q, Ma S, Wu L, Chen Y, Sheng H, Wan X, Chen W, Chen X, Bai J, Wu L, Liu Q, Sun W, Yang S, Hu M, Liu C, Liu D. Potential of Mie-Fluorescence-Raman Lidar to Profile Chlorophyll a Concentration in Inland Waters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:14226-14236. [PMID: 37713595 DOI: 10.1021/acs.est.3c04212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/17/2023]
Abstract
Vertical distribution of phytoplankton is crucial for assessing the trophic status and primary production in inland waters. However, there is sparse information about phytoplankton vertical distribution due to the lack of sufficient measurements. Here, we report, to the best of our knowledge, the first Mie-fluorescence-Raman lidar (MFRL) measurements of continuous chlorophyll a (Chl-a) profiles as well as their parametrization in inland water. The lidar-measured Chl-a during several experiments showed good agreement with the in situ data. A case study verified that MFRL had the potential to profile the Chl-a concentration. The results revealed that the maintenance of subsurface chlorophyll maxima (SCM) was influenced by light and nutrient inputs. Furthermore, inspired by the observations from MFRL, an SCM model built upon surface Chl-a concentration and euphotic layer depth was proposed with root mean square relative difference of 16.5% compared to MFRL observations, providing the possibility to map 3D Chl-a distribution in aquatic ecosystems by integrated active-passive remote sensing technology. Profiling and modeling Chl-a concentration with MFRL are expected to be of paramount importance for monitoring inland water ecosystems and environments.
Collapse
Affiliation(s)
- Hongkai Zhao
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311200, China
| | - Yudi Zhou
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hongda Wu
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tiit Kutser
- Estonian Marine Institute, University of Tartu, Mäealuse 14, Tallinn 10619, Estonia
| | - Yicai Han
- Institute of Environmental Protection Science, Hangzhou 310014, China
| | - Ronghua Ma
- Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Ziwei Yao
- State Environmental Protection Key Laboratory of Coastal Ecosystem, Dalian 116023, China
| | - Huade Zhao
- State Environmental Protection Key Laboratory of Coastal Ecosystem, Dalian 116023, China
| | - Peituo Xu
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chengchong Jiang
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiuling Gu
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Shizhe Ma
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lingyun Wu
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yang Chen
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Haiyan Sheng
- Institute of Environmental Protection Science, Hangzhou 310014, China
| | - Xueping Wan
- Wuxi CAS Photonics Co., Ltd., Wuxi 214135, China
| | - Wentai Chen
- Wuxi CAS Photonics Co., Ltd., Wuxi 214135, China
| | | | - Jian Bai
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lan Wu
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qun Liu
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
- International Research Center for Advanced Photonics, Zhejiang University, Jiaxing 314400, China
| | - Wenbo Sun
- Donghai Laboratory, Zhoushan 316021, China
| | - Suhui Yang
- School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
| | - Miao Hu
- College of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Chong Liu
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Dong Liu
- Ningbo Innovation Center, State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311200, China
- International Research Center for Advanced Photonics, Zhejiang University, Jiaxing 314400, China
- Jiaxing Key Laboratory of Photonic Sensing & Intelligent Imaging, Jiaxing 314000, China
| |
Collapse
|
5
|
Huang S, Zuo L, Cheng G, He Y, Zhang L, Han Q, Feng L. Design, synthesis and mechanism research of novel algicide based on bioactive fragments synthesis strategy. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 191:105344. [PMID: 36963926 DOI: 10.1016/j.pestbp.2023.105344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/06/2023] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
The frequency and intensity of harmful cyanobacterial blooms (HCBs) are increasing all over the world, their prevention and control have become a great challenge. In this paper, a series of 1,3,4-thiadiazole thioacetamides (T series) were designed and synthesized as potential algaecides. Among them, the compound T3 showed its best algacidal activity against Synechocystis sp. PCC 6803 (PCC 6803, EC50 = 1.51 μM) and Microcystis aeruginosa FACHB 905 (FACHB905, EC50 = 4.88 μM), which was more effective than the lead compound L1 (PCC6803, EC50 = 7.7 μM; FACHB905, EC50 = 8.8 μM) and the commercially available herbicide prometryn (PCC6803, EC50 = 4.64 μM;FACHB905, EC50 = 6.52 μM). Meanwhile, T3 showed a lower inhibitory activity (EC50 = 12.76 μM) than prometryn (EC50 = 7.98 μM) to Chlorella FACHB1227, indicating that T3 had selective inhibition to prokaryotic algae (PCC6803, FACHB905) and eukaryotic algae (FACHB1227). Furthermore, the algacidal and anti-algae activities of T3 were significantly better than those of prometryn, while the toxicity of zebrafish and human cells was less than prometryn. Electron microscope, physiological, biochemical and metabonomic analysis showed that T3 interfered with light absorption and light conversion during photosynthesis by significantly reducing chlorophyll content, thus inhibited metabolic pathways such as the Calvin cycle and TCA cycle, and eventually led to the cell rupture of cyanobacteria. These results afforded further development of effective and safe algaecides.
Collapse
Affiliation(s)
- Shi Huang
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Lingzi Zuo
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Guonian Cheng
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yanlin He
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Liexiong Zhang
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Qiang Han
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Lingling Feng
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China.
| |
Collapse
|
6
|
Sun B, Zong Q, Zhang Y, Wang H, Ding C, Qi Z, Bao Z, Liu X, Liu Y, Gao X. MASR: A novel monitoring method coupled with interpretation platform for near-term management in thermal stratified reservoirs. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 323:116172. [PMID: 36261974 DOI: 10.1016/j.jenvman.2022.116172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/17/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
Good water quality is critical to public health and aquatic ecological security of global reservoirs. In stratified reservoirs, increasing near-term management demands foster extremely high monitoring and forecasting needs. In this study, a management assistant for stratified reservoirs (MASR) was developed, including a wave-driven monitoring platform and interpretation platform for multiple reservoir water quality variables. The wave-driven platform can adapt to the characteristics of water level changes and transmit the monitoring data through a mobile network to the reservoir manager, which are processed by the interpretation platform in real time for near-term management. After several months of application, MASR monitored 1237 groups of valid profile water quality data with an acceptable error, which showed a strong capacity for capturing the water quality dynamics in a stratified reservoir. The effective identification of thermal stratification structures and anoxic zones can help managers to design withdrawal schemes for reservoirs. Moreover, the prediction of algae state based on the back propagation (BP) neural network provided the basis for making operation plans to proactively control algae blooms. Our study provides an economical and convenient solution for stratified reservoirs to address near-term management issues.
Collapse
Affiliation(s)
- Bowen Sun
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300350, China; School of Civil Engineering, Tianjin University, Tianjin, 300350, China
| | - Qingzhi Zong
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300350, China; School of Civil Engineering, Tianjin University, Tianjin, 300350, China
| | - Yuanning Zhang
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300350, China; School of Civil Engineering, Tianjin University, Tianjin, 300350, China
| | - Haoqing Wang
- School of Civil Engineering, Tianjin University, Tianjin, 300350, China
| | - Chen Ding
- School of Civil Engineering, Tianjin University, Tianjin, 300350, China
| | - Zhanfeng Qi
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300350, China; National Ocean Technology Center, Tianjin, 300112, China
| | - Zhu Bao
- Luanhe River Water Quality Monitoring Center of Haihe River Basin, Luan River Diversion Project Management Bureau of Haihe River Water Conservancy Commission, Tangshan, Hebei, 064309, China
| | - Xiaobo Liu
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research; Institute of Water Ecology and Environment, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China.
| | - Yinzhu Liu
- School of Civil Engineering, Tianjin University, Tianjin, 300350, China
| | - Xueping Gao
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300350, China; School of Civil Engineering, Tianjin University, Tianjin, 300350, China
| |
Collapse
|