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Chen H, Lei L, Li Z, Zhou H, Cheng H, Chen Z, Wang Y, Wang Y. Redundancy and resilience of microbial community under aniline stress during wastewater treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175822. [PMID: 39197768 DOI: 10.1016/j.scitotenv.2024.175822] [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: 04/21/2024] [Revised: 08/15/2024] [Accepted: 08/25/2024] [Indexed: 09/01/2024]
Abstract
Aniline is one of the most toxic and widespread organic pollutants. Although biological treatment is cost-effective and generates minimal secondary pollution, microbial communities are significantly affected by high aniline concentrations, which result in low degradation efficiency. However, a comprehensive understanding of the microbial community response to aniline stress is lacking. Here, we performed a cyclic experiment with aniline concentrations (200, 600, 1200, 600, and 200 mg/L) to investigate the ability of microbial communities to recover their performance after exposure to high aniline concentrations. At aniline concentrations up to 600 mg/L, the bioreactor exhibited high aniline removal efficiency (almost 100 %). Comamonas, Zoogloea, and Delftia played crucial roles in removing aniline and microbial beta diversity changed. Additionally, alpha diversity and network complexity decreased with increasing aniline concentration, but these metrics recovered to their original levels when the aniline concentration was returned to 200 mg/L. Homogeneous and heterogeneous selection dominated microbial community assembly. Therefore, according to the observed variations in community structure and the recovery of keystones after aniline stress, microbial community redundancy and resilience are pivotal for ensuring system stability. Overall, this study provides valuable insights into the redundancy and resilience of microbial communities under aniline stress and establishes a scientific basis for managing and evaluating wastewater treatment plants.
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Affiliation(s)
- Hui Chen
- Institute of Zhejiang University - Quzhou, Quzhou 32400, China; Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lecheng Lei
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhongjian Li
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hongbo Zhou
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Haina Cheng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Zhu Chen
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Yangyang Wang
- National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China
| | - Yuguang Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China.
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Van Gray JB, Ayayee P. Examining the impacts of salt specificity on freshwater microbial community and functional potential following salinization. Environ Microbiol 2024; 26:e16628. [PMID: 38757470 DOI: 10.1111/1462-2920.16628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 04/05/2024] [Indexed: 05/18/2024]
Abstract
The degradation of freshwater systems by salt pollution is a threat to global freshwater resources. Salinization is commonly identified by increased specific conductance (conductivity), a proxy for salt concentrations. However, conductivity fails to account for the diversity of salts entering freshwaters and the potential implications this has on microbial communities and functions. We tested 4 types of salt pollution-MgCl2, MgSO4, NaCl, and Na2SO4-on bacterial taxonomic and functional α-, β-diversity of communities originating from streams in two distinct localities (Nebraska [NE] and Ohio [OH], USA). Community responses depended on the site of origin, with NE and OH exhibiting more pronounced decreases in community diversity in response to Na2SO4 and MgCl2 than other salt amendments. A closer examination of taxonomic and functional diversity metrics suggests that core features of communities are more resistant to induced salt stress and that marginal features at both a population and functional level are more likely to exhibit significant structural shifts based on salt specificity. The lack of uniformity in community response highlights the need to consider the compositional complexities of salinization to accurately identify the ecological consequences of instances of salt pollution.
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Affiliation(s)
- Jonathon B Van Gray
- The Ohio State University CFAES Wooster, Agriculture Technical Institute, Wooster, Ohio, USA
| | - Paul Ayayee
- Department of Biology, University of Nebraska at Omaha, Omaha, Nebraska, USA
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Wijaya W, Suhaimi Z, Chua CX, Sunil RS, Kolundžija S, Rohaizat AMB, Azmi NBM, Hazrin-Chong NH, Lauro FM. Frequent pulse disturbances shape resistance and resilience in tropical marine microbial communities. ISME COMMUNICATIONS 2023; 3:55. [PMID: 37280348 PMCID: PMC10244338 DOI: 10.1038/s43705-023-00260-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 05/02/2023] [Accepted: 05/24/2023] [Indexed: 06/08/2023]
Abstract
The Johor Strait separates the island of Singapore from Peninsular Malaysia. A 1-kilometer causeway built in the early 1920s in the middle of the strait effectively blocks water flowing to/from either side, resulting in low water turnover rates and build-up of nutrients in the inner Strait. We have previously shown that short-term rather than seasonal environmental changes influence microbial community composition in the Johor Strait. Here, we present a temporally-intensive study that uncovers the factors keeping the microbial populations in check. We sampled the surface water at four sites in the inner Eastern Johor Strait every other day for two months, while measuring various water quality parameters, and analysed 16S amplicon sequences and flow-cytometric counts. We discovered that microbial community succession revolves around a common stable state resulting from frequent pulse disturbances. Among these, sporadic riverine freshwater input and regular tidal currents influence bottom-up controls including the availability of the limiting nutrient nitrogen and its biological release in readily available forms. From the top-down, marine viruses and predatory bacteria limit the proliferation of microbes in the water. Harmful algal blooms, which have been observed historically in these waters, may occur only when there are simultaneous gaps in the top-down and bottom-up controls. This study gains insight into complex interactions between multiple factors contributing to a low-resistance but high-resilience microbial community and speculate about rare events that could lead to the occurrence of an algal bloom.
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Affiliation(s)
- Winona Wijaya
- Asian School of the Environment, Nanyang Technological University, Singapore, Singapore
| | - Zahirah Suhaimi
- Department of Anthropology, University of California Santa Cruz, Santa Cruz, CA, USA
- Center for Southeast Asian Coastal Interactions, Santa Cruz, CA, USA
| | - Cherlyn Xin'Er Chua
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Rohan Shawn Sunil
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Sandra Kolundžija
- Asian School of the Environment, Nanyang Technological University, Singapore, Singapore
| | | | - Norzarifah Binti Md Azmi
- Department of Biological Sciences and Biotechnology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Nur Hazlin Hazrin-Chong
- Department of Biological Sciences and Biotechnology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Federico M Lauro
- Asian School of the Environment, Nanyang Technological University, Singapore, Singapore.
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore.
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Gronniger JL, Wang Z, Brandt GR, Ward CS, Tsementzi D, Mu H, Gu J, Johnson ZI, Konstantinidis KT, Hunt DE. Rapid changes in coastal ocean microbiomes uncoupled with shifts in environmental variables. Environ Microbiol 2022; 24:4167-4177. [PMID: 35715385 DOI: 10.1111/1462-2920.16086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 05/25/2022] [Indexed: 11/30/2022]
Abstract
Disturbances, here defined as events that directly alter microbial community composition, are commonly studied in host-associated and engineered systems. In spite of global change both altering environmental averages and increasing extreme events, there has been relatively little research into the causes, persistence and population-level impacts of disturbance in the dynamic coastal ocean. Here, we utilize 3 years of observations from a coastal time series to identify disturbances based on the largest week-over-week changes in the microbiome (i.e. identifying disturbance as events that alter the community composition). In general, these microbiome disturbances were not clearly linked to specific environmental factors and responsive taxa largely differed, aside from SAR11, which generally declined. However, several disturbance metagenomes identified increased phage-associated genes, suggesting that unexplained community shifts might be caused by increased mortality. Furthermore, a category 1 hurricane, the only event that would likely be classified a priori as an environmental disturbance, was not an outlier in microbiome composition, but did enhance a bloom in seasonally abundant phytoplankton. Thus, as extreme environmental changes intensify, assumptions of what constitutes a disturbance should be re-examined in the context of ecological history and microbiome responses.
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Affiliation(s)
| | - Zhao Wang
- Marine Laboratory, Duke University, Beaufort, NC, USA
| | | | | | | | - Han Mu
- Marine Laboratory, Duke University, Beaufort, NC, USA
| | - Junyao Gu
- Marine Laboratory, Duke University, Beaufort, NC, USA
| | - Zackary I Johnson
- Marine Laboratory, Duke University, Beaufort, NC, USA.,Biology and Civil & Environmental Engineering, Duke University, Durham, NC, USA
| | | | - Dana E Hunt
- Marine Laboratory, Duke University, Beaufort, NC, USA.,Biology and Civil & Environmental Engineering, Duke University, Durham, NC, USA
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Microbial Community Resilience across Ecosystems and Multiple Disturbances. Microbiol Mol Biol Rev 2021; 85:85/2/e00026-20. [PMID: 33789927 DOI: 10.1128/mmbr.00026-20] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The ability of ecosystems to withstand disturbances and maintain their functions is being increasingly tested as rates of change intensify due to climate change and other human activities. Microorganisms are crucial players underpinning ecosystem functions, and the recovery of microbial communities from disturbances is therefore a key part of the complex processes determining the fate of ecosystem functioning. However, despite global environmental change consisting of numerous pressures, it is unclear and controversial how multiple disturbances affect microbial community stability and what consequences this has for ecosystem functions. This is particularly the case for those multiple or compounded disturbances that occur more frequently than the normal recovery time. The aim of this review is to provide an overview of the mechanisms that can govern the responses of microbes to multiple disturbances across aquatic and terrestrial ecosystems. We first summarize and discuss properties and mechanisms that influence resilience in aquatic and soil biomes to determine whether there are generally applicable principles. Following, we focus on interactions resulting from inherent characteristics of compounded disturbances, such as the nature of the disturbance, timing, and chronology that can lead to complex and nonadditive effects that are modulating the response of microorganisms.
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Esquivel-Hernández DA, García-Pérez JS, Xu X, Metha S, Maldonado J, Xia S, Zhao HP, Rittmann BE, Ontiveros-Valencia A. Microbial ecology in selenate-reducing biofilm communities: Rare biosphere and their interactions with abundant phylotypes. Biotechnol Bioeng 2021; 118:2460-2471. [PMID: 33719058 DOI: 10.1002/bit.27754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 03/09/2021] [Accepted: 03/11/2021] [Indexed: 11/07/2022]
Abstract
Selenate (SeO4 2- ) reduction in hydrogen (H2 )-fed membrane biofilm reactors (H2 -MBfRs) was studied in combinations with other common electron acceptors. We employed H2 -MBfRs with two distinctly different conditions: R1, with ample electron-donor availability and acceptors SeO4 2- and sulfate (SO4 2- ), and R2, with electron-donor limitation and the presence of electron acceptors SeO4 2- , nitrate (NO3 - ), and SO4 2- . Even though H2 was available to reduce all input SeO4 2- and SO4 2- in R1, SeO4 2- reduction was preferred over SO4 2- reduction. In R2, co-reduction of NO3 - and SeO4 2- occurred, and SO4 2- reduction was mostly suppressed. Biofilms in all MBfRs had high microbial diversity that was influenced by the "rare biosphere" (RB), phylotypes with relative abundance less than 1%. While all MBfR biofilms had abundant members, such as Dechloromonas and Methyloversatilis, the bacterial communities were significantly different between R1 and R2. For R1, abundant genera were Methyloversatilis, Melioribacter, and Propionivibrio; for R2, abundant genera were Dechloromonas, Hydrogenophaga, Cystobacter, Methyloversatilis, and Thauera. Although changes in electron-acceptor or -donor loading altered the phylogenetic structure of the microbial communities, the biofilm communities were resilient in terms of SeO4 2- and NO3 - reductions, because interacting members of the RB had the capacity of respiring these electron acceptors.
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Affiliation(s)
- Diego A Esquivel-Hernández
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.,Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Jonathan S García-Pérez
- Department of Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Xiaoyin Xu
- School of Sustainable Engineering and The Built Environment, Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA.,College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Sanya Metha
- School of Sustainable Engineering and The Built Environment, Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA
| | - Juan Maldonado
- School of Sustainable Engineering and The Built Environment, Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA
| | - Siqing Xia
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - He-Ping Zhao
- Department of Environmental Engineering, College of Environmental and Resource Science, Zhejiang University, Hangzhou, China
| | - Bruce E Rittmann
- School of Sustainable Engineering and The Built Environment, Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA
| | - Aura Ontiveros-Valencia
- School of Sustainable Engineering and The Built Environment, Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA.,División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica A.C., San Luis Potosí, San Luis Potosí, Mexico
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