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Gu S, Zhang P, Luo S, Chen K, Jiang C, Xiong J, Miao W. Microbial Community Colonization Process Unveiled through eDNA-PFU Technology in Mesocosm Ecosystems. Microorganisms 2023; 11:2498. [PMID: 37894156 PMCID: PMC10609261 DOI: 10.3390/microorganisms11102498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
Microbial communities are essential components of aquatic ecosystems and are widely employed for the detection, protection, and restoration of water ecosystems. The polyurethane foam unit (PFU) method, an effective and widely used environmental monitoring technique, has been improved with the eDNA-PFU method, offering efficiency, rapidity, and standardization advantages. This research aimed to explore the colonization process of microbial communities within PFUs using eDNA-PFU technology. To achieve this, we conducted ten-day monitoring and sequencing of microbial communities within PFUs in a stable and controlled artificial aquatic ecosystem, comparing them with water environmental samples (eDNA samples). Results showed 1065 genera in eDNA-PFU and 1059 in eDNA, with eDNA-PFU detecting 99.95% of eDNA-identified species. Additionally, the diversity indices of bacteria and eukaryotes in both methods showed similar trends over time in the colonization process; however, relative abundance differed. We further analyzed the colonization dynamics of microbes in eDNA-PFU and identified four clusters with varying colonization speeds. Notably, we found differences in colonization rates between bacteria and eukaryotes. Furthermore, the Molecular Ecological Networks (MEN) showed that the network in eDNA-PFU was more modular, forming a unique microbial community differentiated from the aquatic environment. In conclusion, this study, using eDNA-PFU, comprehensively explored microbial colonization and interrelationships in a controlled mesocosm system, providing foundational data and reference standards for its application in aquatic ecosystem monitoring and beyond.
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Affiliation(s)
- Siyu Gu
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (S.G.); (P.Z.); (S.L.); (K.C.); (C.J.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Zhang
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (S.G.); (P.Z.); (S.L.); (K.C.); (C.J.)
- School of Ecology and Environment, Tibet University, Lhasa 850000, China
| | - Shuai Luo
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (S.G.); (P.Z.); (S.L.); (K.C.); (C.J.)
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Kai Chen
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (S.G.); (P.Z.); (S.L.); (K.C.); (C.J.)
| | - Chuanqi Jiang
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (S.G.); (P.Z.); (S.L.); (K.C.); (C.J.)
| | - Jie Xiong
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (S.G.); (P.Z.); (S.L.); (K.C.); (C.J.)
| | - Wei Miao
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (S.G.); (P.Z.); (S.L.); (K.C.); (C.J.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Center for Excellence in Animal Evolution and Genetics, Kunming 650223, China
- State Key Laboratory of Freshwater Ecology and Biotechnology of China, Wuhan 430072, China
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Wang C, Jiang L, Pan H, Warren A, Hu X. New contributions to the Cyrtophoria ciliates (Protista, Ciliophora): Establishment of new taxa and phylogenetic analyses using two ribosomal genes. J Eukaryot Microbiol 2023; 70:e12938. [PMID: 35892241 DOI: 10.1111/jeu.12938] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 07/06/2022] [Accepted: 07/22/2022] [Indexed: 01/13/2023]
Abstract
Periphytic ciliates play a vital role in the material cycle and energy flow of microbial food web, however, their taxonomy and biodiversity are inadequately studied given their high species richness. Two new and one little known species, viz. Derouxella lembodes gen. et sp. nov., Cyrtophoron multivacuolatum sp. nov., and Cyrtophoron apsheronica Aliev, 1991, collected from coastal waters of China, were investigated using modern methods. Derouxella gen. nov. can be recognized by having dorsoventrally flattened body, a podite, one fragmented preoral kinety, two parallel circumoral kineties, and somatic kineties progressively shortened from right to left. Morphological classification and phylogenetic analyses based on nuclear small subunit ribosomal RNA (nSSU rRNA) and mitochondrial small subunit ribosomal RNA (mtSSU rRNA) gene sequence data inferred that Derouxella gen. nov. occupies an intermediate position between Hartmannulidae and Dysteriidae. Cyrtophoron multivacuolatum sp. nov. is characterized by large body size, the numbers of somatic kineties and nematodesmal rods, and having numerous contractile vacuoles. The genus Cyrtophoron and the poorly known species C. apsheronica were redefined. Even with the addition of newly obtained nSSU rRNA and mtSSU rRNA gene sequences of Cyrtophoron, the family Chlamydodontidae was still recovered as a monophyletic group, the monophyly of Cyrtophoron was supported too.
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Affiliation(s)
- Congcong Wang
- Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China.,Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
| | - Limin Jiang
- Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China.,Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
| | - Hongbo Pan
- Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, Shanghai Ocean University, Shanghai, China.,Engineering Research Center of Environmental DNA and Ecological Water Health Assessment, Shanghai Ocean University, Shanghai, China
| | - Alan Warren
- Department of Life Sciences, Natural History Museum, London, UK
| | - Xiaozhong Hu
- Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China.,Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
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Zhong X, Yu S, Xu H. Colonization dynamics in body-size spectrum of protozoan periphytons for marine bioassessment using two modified sampling systems. MARINE POLLUTION BULLETIN 2023; 186:114382. [PMID: 36442312 DOI: 10.1016/j.marpolbul.2022.114382] [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: 09/07/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
The body-size spectrum of microperiphytons has been proved to be a powerful tool for bioassessment. To explore colonization dynamics in body-size spectrum of periphytic protozoa in two modified sampling systems of both glass slide (mGS) and polyurethane foam unit (mPFU), a 28-day colonization survey was conducted in coastal waters of the Yellow Sea, China. A total of 7 body-size ranks were identified from 62 species, with 7 ranks (60 species) in the mGS and 6 ranks (37 species) in the mPFU system. The stable pattern with similar body-size spectra was found earlier in the mGS system than mPFU system during the colonization period. Both the trajectory and bootstrapped average analyses revealed that the colonization dynamics were significantly different in the body-size spectrum between the two methods. Based on our data, it suggests that the mGS system might be a better choice than the mPFU system for bioassessment in marine ecosystems.
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Affiliation(s)
- Xiaoxiao Zhong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
| | - Shitao Yu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China.
| | - Henglong Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
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Zhong X, Yu S, Xu H, Kim S. Can tidal events influence analysis on colonization dynamics in body-size spectrum of periphytic ciliates for marine bioassessment? MARINE POLLUTION BULLETIN 2022; 175:113342. [PMID: 35093783 DOI: 10.1016/j.marpolbul.2022.113342] [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: 11/29/2021] [Revised: 01/05/2022] [Accepted: 01/09/2022] [Indexed: 06/14/2023]
Abstract
The tidal influence on body-size spectrum of the protozoan periphytons was explored by using the conventional slide system (CS) and the polyurethane foam enveloped slide system (PFES) in coastal waters during a 1-month study. During the colonization process, clear temporal patterns of the body-size spectrum were observed using the two sampling methods. In terms of relative species number and frequency of occurrence, the rank S4 represented a more stable temporal variability in the PFES system than the CS system during the colonization. Additionally, the small forms (e.g., S1, S2, and S3) were more abundant in the PFES system. The clustering and bootstrapped average analyses demonstrated differences in body-size spectrum of protozoans between the two sampling systems. Our results imply that the body-size spectrum of protozoan periphytons may be impacted by tidal events during colonization process in marine waters.
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Affiliation(s)
- Xiaoxiao Zhong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
| | - Shitao Yu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China.
| | - Henglong Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
| | - Sanghee Kim
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 21990, Republic of Korea
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Zhong X, Yu S, Xu H. Influence of tidal events on the body-size spectrum of periphytic ciliates for marine bioassessment using artificial substrata. MARINE POLLUTION BULLETIN 2021; 168:112435. [PMID: 33989956 DOI: 10.1016/j.marpolbul.2021.112435] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
As an internal functional trait of a community, the body-size spectrum is a highly informative indicator for bioassessment of water/environmental quality in aquatic ecosystems. To determine the influence of tidal events on body-size spectra of protozoan periphytons, a 3-month baseline survey was conducted in Korean coastal waters using the polyurethane foam enveloped slide system (PFES) and conventional slide system (CS). The body-size spectrum of the protozoans showed a clear temporal pattern during the study period using both sampling systems. However, the temporal dynamics showed significantly different trajectories in the body-size spectrum between the two sampling methods during the study period. The bootstrapped average analysis revealed that the patterns of the body-size spectrum were significantly different between the PFES and CS systems, especially in terms of frequency of occurrence. These findings suggest that the tidal events may significantly influence body-size spectrum of periphytic ciliates for bioassessment in marine ecosystems.
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Affiliation(s)
- Xiaoxiao Zhong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shitao Yu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Henglong Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
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Bai X, Zhong X, Guo C, Gui Y, Xu H. Colonization dynamics of protozoan communities in marine bioassessment surveys using two modified sampling systems. MARINE POLLUTION BULLETIN 2020; 157:111325. [PMID: 32658690 DOI: 10.1016/j.marpolbul.2020.111325] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 05/22/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
Colonization dynamics of protozoan communities were investigated at a depth of 1 m in the coastal waters of the Yellow Sea, northern China from May to June 2019, using modified glass slide (mGS) and modified polyurethane foam unit (mPFU) systems. The colonization process and growth curves of protozoa were well fitted to the MacArthur-Wilson and logistic models in both systems, respectively. However, they showed significant differences in both colonization dynamics and biodiversity/functional parameters between the mGS and mPFU systems. The H' (species diversity), the G (colonization rate), and Amax (maximum abundance) were higher, while the value of T90% (the time for reaching 90% equilibrium species number) was lower in the mGS system than those in the mPFU system. Multivariate analyses demonstrated that protozoa showed different models of colonization dynamics in both systems. The results suggest that the mGS system might be more effective than the mPFU system in marine bioassessment surveys.
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Affiliation(s)
- Xiaoyun Bai
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
| | - Xiaoxiao Zhong
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China; Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 21990, Republic of Korea
| | - Congcong Guo
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
| | - Yuying Gui
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
| | - Henglong Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China.
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