1
|
Tong L, Jun L, He J, Min Y, Guoqing D, Yuting H, Huaxing Z, Huan W, Tingshuang P. Differences in environmental microbial community responses under rice-crab co-culture and crab monoculture models under cyanobacterial bloom. Front Microbiol 2024; 15:1327520. [PMID: 38855766 PMCID: PMC11157002 DOI: 10.3389/fmicb.2024.1327520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 05/14/2024] [Indexed: 06/11/2024] Open
Abstract
Cyanobacterial blooms (CBs) present significant challenges to Chinese mitten crab (CMC) culture, posing hazards to the aquatic microbial ecology. However, the current focus on the microbial ecological changes within the CMC culture system under the influence of CBs is somewhat insufficient. There's an urgent need to analyze the microbial ecosystem of the CMC culture system under CBs. This study employed 16S rRNA gene amplicon sequencing to investigate the dynamics of the environmental microbial community in both the rice-crab co-culture (RC) and crab monoculture (CM) models. The results revealed that cyanobacteria reached high levels in the CM water in July, while they began to increase in the RC water in August. Notably, OTU147 (uncultured bacterium g_Planktothrix NIVA-CYA 15), identified as the dominant taxon associated with CBs, showed a significant linear relationship with TP, NO2 --N, and the N:P ratio. TP, TN, NO2 --N, and CODMn had a more pronounced impact on the structure of bacterial communities and cyanobacterial taxa in the water. The bacterial community structure involved in carbon metabolism displayed temporal succession in the water. The co-occurrence network of the bacterial community primarily consisted of Chloroflexi, Proteobacteria, and Firnicutes in the sediment, and Actinobacteria, Proteobacteria, Chloroflexi, and Bacteroidota in the water. In contrast, the co-occurrence network included different peripheral species in the sediment and water. Keystone species were predominantly represented by OTU22 (uncultured actinobacterium g_ hgcI clade) and OTU12 (uncultured Opitutae bacterium g_ norank) in the RC water, and by OTU25 (uncultured bacterium g_ Limnohabitans) in the CM water. TP, TN, NO2 --N, and CODMn were identified as the primary environmental factors influencing these keystone taxa within the culture water. In conclusion, this study on the microbial ecology of the CMC culture system under the influence of CBs provides valuable insights that can be instrumental in subsequent management efforts.
Collapse
Affiliation(s)
- Li Tong
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| | - Ling Jun
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| | - Jiang He
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| | - Yang Min
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| | - Duan Guoqing
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| | - Hu Yuting
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| | - Zhou Huaxing
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| | - Wang Huan
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| | - Pan Tingshuang
- Fishery Institute of Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Aquaculture & Stock Enhancement in Anhui Province, Hefei, China
| |
Collapse
|
2
|
Gu P, Wang Y, Zhang K, Wu H, Zhang W, Ding Y, Yang K, Zhang Z, Ren X, Miao H, Zheng Z. Cyanobacterial blooms control with CaO 2 in different stages: Inhibition efficiency, water quality optimization and microbial community changes. CHEMOSPHERE 2024; 353:141655. [PMID: 38460851 DOI: 10.1016/j.chemosphere.2024.141655] [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: 01/06/2024] [Revised: 02/29/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
This study explored the feasibility of calcium peroxide (CaO2) to inhibit cyanobacterial blooms of the outbreak and dormancy stages. Our previous studies have found that CaO2 has a high inhibitory effect on cyanobacteria. In order to explore the application effect of CaO2 in actual cyanobacteria lake water, we conducted this study to clarify the effect of CaO2 on inhibiting cyanobacteria in outbreak and dormancy stages. The results showed that CaO2 inhibited the growth of cyanobacteria in the outbreak and dormancy stages by 98.7% and 97.6%, respectively. The main inhibitory mechanism is: (1) destroy the cell structure and make the cells undergo programmed cell death by stimulating the oxidation balance of cyanobacteria cells; (2) EPS released by cyanobacteria resist stimulation and combine calcium to form colonies, and accelerate cell settlement. In addition to causing direct damage to cyanobacteria, CaO2 can also improve water quality and sediment microbial diversity, and reduce the release of sediment to phosphorus, so as to further contribute to cyanobacterial inhibition. Finally, the results of qRT-PCR analysis confirmed the promoting effect of CaO2 on the downregulation of photosynthesis-related genes (rbcL and psaB), microcystn (mcyA and mcyD) and peroxiredoxin (prx), and verified the mechanism of CaO2 inhibition of cyanobacteria. In conclusion, this study provides new findings for the future suppression of cyanobacterial bloom, by combining water quality, cyanobacterial inhibition mechanisms, and sediment microbial diversity.
Collapse
Affiliation(s)
- Peng Gu
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Yuting Wang
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Kenian Zhang
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Hanqi Wu
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China.
| | - Wanqing Zhang
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Yi Ding
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Kunlun Yang
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Zengshuai Zhang
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Xueli Ren
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Hengfeng Miao
- School of Environment and Ecology, Jiangnan University, Wuxi, Jiangsu, 214122, PR China.
| | - Zheng Zheng
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China.
| |
Collapse
|
3
|
Zi F, Wang B, Yang L, Huo Q, Wang Z, Ren D, Huo B, Song Y, Chen S. Ecology of Saline Watersheds: An Investigation of the Functional Communities and Drivers of Benthic Fauna in Typical Water Bodies of the Irtysh River Basin. BIOLOGY 2024; 13:27. [PMID: 38248458 PMCID: PMC10813219 DOI: 10.3390/biology13010027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/20/2023] [Accepted: 12/31/2023] [Indexed: 01/23/2024]
Abstract
In this study, we investigated how changes in salinity affect biodiversity and function in 11 typical water bodies in the Altai region. The salinity of the freshwater bodies ranged from 0 to 5, the brackish water salinities ranged from 5 to 20, and the hypersaline environments had salinities > 20. We identified 11 orders, 34 families, and 55 genera in 3061 benthic samples and classified them into 10 traits and 32 categories. Subsequently, we conducted Mantel tests and canonical correlation analysis (CCA) and calculated biodiversity and functional diversity indices for each sampling site. The results indicated that biodiversity and the proportion of functional traits were greater in freshwater environments than in saline environments and decreased gradually with increasing salinity. Noticeable shifts in species distribution were observed in high-salinity environments and were accompanied by specific functional traits such as swimming ability, smaller body sizes, and air-breathing adaptations. The diversity indices revealed that the species were more evenly distributed in high-diversity environments under the influence of salinity. In contrast, in high-salinity environments, only a few species dominated. The results suggested that increasing salinity accelerated the evolution of benthic communities, leading to reduced species diversity and functional homogenization. We recommend enhancing the monitoring of saline water resources and implementing sustainable water resource management to mitigate the impact of salinity stress on aquatic communities in response to climate-induced soil and water salinization.
Collapse
Affiliation(s)
- Fangze Zi
- Tarim Research Center of Rare Fishes, College of Life Sciences and Technology, Tarim University, Alar 843300, China; (F.Z.); (L.Y.); (Q.H.); (Z.W.); (D.R.)
| | - Baoqiang Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;
| | - Liting Yang
- Tarim Research Center of Rare Fishes, College of Life Sciences and Technology, Tarim University, Alar 843300, China; (F.Z.); (L.Y.); (Q.H.); (Z.W.); (D.R.)
| | - Qiang Huo
- Tarim Research Center of Rare Fishes, College of Life Sciences and Technology, Tarim University, Alar 843300, China; (F.Z.); (L.Y.); (Q.H.); (Z.W.); (D.R.)
| | - Zhichao Wang
- Tarim Research Center of Rare Fishes, College of Life Sciences and Technology, Tarim University, Alar 843300, China; (F.Z.); (L.Y.); (Q.H.); (Z.W.); (D.R.)
| | - Daoquan Ren
- Tarim Research Center of Rare Fishes, College of Life Sciences and Technology, Tarim University, Alar 843300, China; (F.Z.); (L.Y.); (Q.H.); (Z.W.); (D.R.)
| | - Bin Huo
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China;
| | - Yong Song
- Tarim Research Center of Rare Fishes, College of Life Sciences and Technology, Tarim University, Alar 843300, China; (F.Z.); (L.Y.); (Q.H.); (Z.W.); (D.R.)
| | - Shengao Chen
- Tarim Research Center of Rare Fishes, College of Life Sciences and Technology, Tarim University, Alar 843300, China; (F.Z.); (L.Y.); (Q.H.); (Z.W.); (D.R.)
| |
Collapse
|
4
|
Papaioannou C, Geladakis G, Kommata V, Batargias C, Lagoumintzis G. Insights in Pharmaceutical Pollution: The Prospective Role of eDNA Metabarcoding. TOXICS 2023; 11:903. [PMID: 37999555 PMCID: PMC10675236 DOI: 10.3390/toxics11110903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 10/30/2023] [Accepted: 11/02/2023] [Indexed: 11/25/2023]
Abstract
Environmental pollution is a growing threat to natural ecosystems and one of the world's most pressing concerns. The increasing worldwide use of pharmaceuticals has elevated their status as significant emerging contaminants. Pharmaceuticals enter aquatic environments through multiple pathways related to anthropogenic activity. Their high consumption, insufficient waste treatment, and the incapacity of organisms to completely metabolize them contribute to their accumulation in aquatic environments, posing a threat to all life forms. Various analytical methods have been used to quantify pharmaceuticals. Biotechnology advancements based on next-generation sequencing (NGS) techniques, like eDNA metabarcoding, have enabled the development of new methods for assessing and monitoring the ecotoxicological effects of pharmaceuticals. eDNA metabarcoding is a valuable biomonitoring tool for pharmaceutical pollution because it (a) provides an efficient method to assess and predict pollution status, (b) identifies pollution sources, (c) tracks changes in pharmaceutical pollution levels over time, (d) assesses the ecological impact of pharmaceutical pollution, (e) helps prioritize cleanup and mitigation efforts, and (f) offers insights into the diversity and composition of microbial and other bioindicator communities. This review highlights the issue of aquatic pharmaceutical pollution while emphasizing the importance of using modern NGS-based biomonitoring actions to assess its environmental effects more consistently and effectively.
Collapse
Affiliation(s)
- Charikleia Papaioannou
- Department of Biology, University of Patras, 26504 Patras, Greece; (C.P.); (G.G.); (V.K.)
| | - George Geladakis
- Department of Biology, University of Patras, 26504 Patras, Greece; (C.P.); (G.G.); (V.K.)
| | - Vasiliki Kommata
- Department of Biology, University of Patras, 26504 Patras, Greece; (C.P.); (G.G.); (V.K.)
| | - Costas Batargias
- Department of Biology, University of Patras, 26504 Patras, Greece; (C.P.); (G.G.); (V.K.)
| | | |
Collapse
|