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Wei Z, Zhang X, Chen Y, Liu H, Wang S, Zhang M, Ma H, Yu K, Wang L. A new strategy based on a cascade amplification strategy biosensor for on-site eDNA detection and outbreak warning of crown-of-thorns starfish. Sci Total Environ 2024; 927:172258. [PMID: 38583618 DOI: 10.1016/j.scitotenv.2024.172258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
Population outbreaks of the crown-of-thorns starfish (COTS) seriously threaten the sustainability of coral reef ecosystems. However, traditional ecological monitoring techniques cannot provide early warning before the outbreaks, thus preventing timely intervention. Therefore, there is an urgent need for a more accurate and faster technology to predict the outbreaks of COTS. In this work, we developed an electrochemical biosensor based on a programmed catalytic hairpin assembly (CHA) and hybridization chain reaction (HCR) cyclic amplification strategy for sensitive and selective detection of COTS environmental DNA (eDNA) in water bodies. This biosensor exhibited excellent electrochemical characteristics, including a low limit of detection (LOD = 18.4 fM), low limit of quantification (LOQ = 41.1 fM), and wide linear range (50 fM - 10 nM). The biosensing technology successfully allowed the detection of COTS eDNA in the aquarium environment, and the results also demonstrated a significant correlation between eDNA concentration and COTS number (r = 0.990; P < 0.001). The reliability and accuracy of the biosensor results have been further validated through comparison with digital droplet PCR (ddPCR). Moreover, the applicability and accuracy of the biosensor were reconfirmed in field tests at the COTS outbreak site in the South China Sea, which has shown potential application in dynamically monitoring the larvae before the COTS outbreak. Therefore, this efficient electrochemical biosensing technology offers a new solution for on-site monitoring and early warning of the COTS outbreak.
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Affiliation(s)
- Zongwu Wei
- School of Resources, Environment and Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xuzhe Zhang
- School of Resources, Environment and Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yingzhan Chen
- School of Resources, Environment and Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hongjie Liu
- School of Resources, Environment and Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Shaopeng Wang
- School of Resources, Environment and Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Man Zhang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Coral Reef Research Center of China, School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Honglin Ma
- Sansha Track Ocean Coral Reef Conservation Research Institute Co. Ltd., Qionghai 571499, China
| | - Kefu Yu
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Coral Reef Research Center of China, School of Marine Sciences, Guangxi University, Nanning 530004, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
| | - Liwei Wang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Coral Reef Research Center of China, School of Marine Sciences, Guangxi University, Nanning 530004, China.
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Loudon AH, Park J, Parfrey LW. Identifying the core microbiome of the sea star Pisaster ochraceus in the context of sea star wasting disease. FEMS Microbiol Ecol 2023; 99:6998556. [PMID: 36690340 DOI: 10.1093/femsec/fiad005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 11/08/2022] [Accepted: 01/21/2023] [Indexed: 01/25/2023] Open
Abstract
Sea stars are keystone species and their mass die-offs due to sea star wasting disease (SSWD) impact marine communities and have fueled recent interest in the microbiome of sea stars. We assessed the host specificity of the microbiome associated with three body regions of the sea star Pisaster ochraceus using 16S rRNA gene amplicon surveys of the bacterial communities living on and in Pisaster, their environment, and sympatric marine hosts across three populations in British Columbia, Canada. Overall, the bacterial communities on Pisaster are distinct from their environment and differ by both body region and geography. We identified core bacteria specifically associated with Pisaster across populations and nearly absent in other hosts and the environment. We then investigated the distribution of these core bacteria on SSWD-affected Pisaster from one BC site and by reanalyzing a study of SSWD on Pisaster from California. We find no differences in the distribution of core bacteria in early disease at either site and two core taxa differ in relative abundance in advanced disease in California. Using phylogenetic analyses, we find that most core bacteria have close relatives on other sea stars and marine animals, suggesting these clades have evolutionary adaptions to an animal-associated lifestyle.
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Affiliation(s)
- Andrew H Loudon
- Biodiversity Research Centre, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Department of Botany, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Jungsoo Park
- Department of Zoology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Laura Wegener Parfrey
- Biodiversity Research Centre, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Department of Botany, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Department of Zoology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Hakai Institute, PO Box 25039, Campbell River, BC V9W 0B7, Canada
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Rodríguez-Barreras R, Dominicci-Maura A, Tosado-Rodríguez EL, Godoy-Vitorino F. The Epibiotic Microbiota of Wild Caribbean Sea Urchin Spines Is Species Specific. Microorganisms 2023; 11:391. [PMID: 36838357 PMCID: PMC9966300 DOI: 10.3390/microorganisms11020391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Caribbean sea urchins are marine invertebrates that have experienced a decline over the years. Studies on sea urchins have focused primarily on the microbiome of the coelomic fluid or the gut microbiota. In this study, the epibiota community associated with four wild Caribbean sea urchin species, Lytechinus variegatus, Echinometra lucunter, Tripneustes ventricosus, and Diadema antillarum, was characterized for the first time. Using 57 sea urchin animal samples, we evaluated the influence of animal species, trophic niches, and geographical location on the composition of the epibiotic microbiota. We found significant differences in the bacterial biota among species and trophic niches, but not among geographical locations. L. variegatus exhibited the highest alpha diversity with high dominance of Fusobacteria, Planctomycetes, and Cyanobacteria, whereas T. ventricosus and D. antillarum were dominated by Firmicutes. T. ventricosus inhabiting the seagrass biotope dominated by Thalassia testudinum meadows had mostly Endozoicomonas. In contrast, samples located in the reef (dominated by corals and other reef builders) had a higher abundance of Kistimonas and Photobacterium. Our findings confirm that the epibiotic microbiota is species-specific, but also niche-dependent, revealing the trophic networks emerging from the organic matter being recycled in the seagrass and reef niches. As echinoids are important grazers of benthic communities, their microbiota will likely influence ecosystem processes.
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Affiliation(s)
- Ruber Rodríguez-Barreras
- Department of Biology, University of Puerto Rico, Mayagüez Campus, P.O. Box 9000, Mayagüez 00681-9000, Puerto Rico
| | - Anelisse Dominicci-Maura
- Department of Microbiology, University of Puerto Rico School of Medicine, Guillermo Arbona Main Building, San Juan 00936-5067, Puerto Rico
| | - Eduardo L. Tosado-Rodríguez
- Department of Microbiology, University of Puerto Rico School of Medicine, Guillermo Arbona Main Building, San Juan 00936-5067, Puerto Rico
| | - Filipa Godoy-Vitorino
- Department of Microbiology, University of Puerto Rico School of Medicine, Guillermo Arbona Main Building, San Juan 00936-5067, Puerto Rico
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Yang J, Zhang Z, Xie Z, Bai L, Xiong P, Chen F, Zhu T, Peng Q, Wu H, Zhou Y, Ma Y, Zhang Y, Chen M, Gao J, Tian W, Shi K, Du Y, Duan Y, Wang H, Xu Y, Kuang YQ, Zhu M, Yu J, Wang K. Metformin modulates microbiota-derived inosine and ameliorates methamphetamine-induced anxiety and depression-like withdrawal symptoms in mice. Biomed Pharmacother 2022; 149:112837. [PMID: 35339829 DOI: 10.1016/j.biopha.2022.112837] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/16/2022] [Accepted: 03/16/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Metformin exhibits therapeutic potential in behavioural deficits induced by methamphetamine (METH) in rats. Emerging studies suggest gut microbiota may impact psychiatric symptoms, but there is no direct evidence supporting metformin's participation in the pathophysiology of withdrawal symptoms via modulation of gut microbiota. METHODS In order to define the functional impacts of gut microbiota and metformin to the behavioural deficits during METH withdrawal, we utilized a combination of fecal microbiota transplantation (FMT), high-throughput sequencing, and untargeted metabolomics technologies. RESULTS First, METH addicts exhibited higher α diversity and distinct microbial structures compared to healthy controls. In particular, the relative abundance of Rikenellaceae was positively correlated with the severity of anxiety and depression. Second, both human-to-mouse and mouse-to-mouse FMTs confirmed that METH-altered-microbiota transplantation is sufficient to promote anxiety and depression-like behaviours in recipient germ-free mice, and these behavioural disturbances could be ameliorated by metformin. In-depth analysis revealed that METH significantly altered the bacterial composition and structure as well as relative abundance of several bacterial taxa and metabolites, including Rikenellaceae and inosine, respectively, whereas add-on metformin could remodel these alterations. Finally, the inosine complementation successfully restored METH-induced anxiety and depression-like behaviours in mice. CONCLUSION This study demonstrates that METH withdrawal-induced anxiety and depression-like behaviours are reversible and transmissible via gut microbiota in a mouse model. The therapeutic effects of metformin on psychiatric manifestations are associated with microbiota-derived metabolites, highlighting the role of the gut microbiota in substance use disorders and the pathophysiology of withdrawal symptoms.
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Affiliation(s)
- Jiqing Yang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Faculty of Life science and Technology, Kunming University of Science and Technology, Kunming 650500, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Zunyue Zhang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; School of Medicine, Yunnan University, Kunming 650091, China
| | - Zhenrong Xie
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Ling Bai
- Faculty of Life science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Pu Xiong
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Fengrong Chen
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Tailin Zhu
- Ministry of Education-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Qingyan Peng
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Hongjin Wu
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Yong Zhou
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Yuru Ma
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Yongjin Zhang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Minghui Chen
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Jianyuan Gao
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Weiwei Tian
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Kai Shi
- College of Science, Guilin University of Technology, Guilin 541004, China
| | - Yan Du
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Yong Duan
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Huawei Wang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Yu Xu
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Department of Gastrointestinal Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Yi-Qun Kuang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Mei Zhu
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Juehua Yu
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China.
| | - Kunhua Wang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China; Faculty of Life science and Technology, Kunming University of Science and Technology, Kunming 650500, China; School of Medicine, Yunnan University, Kunming 650091, China.
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