Molecular and culture-based surveys of metabolically active hydrocarbon-degrading archaeal communities in Sundarban mangrove sediments

Mukherji, S. M.; Ghosh, Arijit; Bhattacharyya, Chandrima; Mallick, Ivy; Bhattacharyya, Anish; Ghosh, Abhrajyoti

doi:10.1016/j.ecoenv.2020.110481

Cited by 15 publications

(8 citation statements)

References 55 publications

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“…Anthropogenic pressures have also been shown to alter Archaeal communities where Euryarchaeal communities were found to vary in abundance in response. Adaptation of Archaeal communities was further demonstrated by their abilities to degrade compounds including benzoic acid, naphthalene and o-phthalate ( Mukherji et al, 2021 ). The functional level annotation of surface water communities could also provide crucial information to understand anthropogenic pressures on the Sundarbans mangrove ecosystem.…”

Section: Discussionmentioning

confidence: 99%

Metagenomic insights into surface water microbial communities of a South Asian mangrove ecosystem

Ghosh

Saha

Bhadury

2022

PeerJ

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Estuaries are one of the most productive ecosystems and their productivity is maintained by resident microbial communities. Recent alterations driven by climate change have further escalated these stressors leading to the propagation of traits such as antibiotic resistance and heavy metal resistance in microbial communities. Surface water samples from eleven stations along the Thakuran and Matla estuaries of the Sundarbans Biosphere Reserve (SBR) of Sundarbans mangrove located in South Asia were sampled in monsoon (June) 2019 to elucidate resident microbial communities based on Nanopore sequencing. Metagenomic analyses revealed the widespread dominance of Proteobacteria across all the stations along with a high abundance of Firmicutes. Other phyla, including Euryarchaeota, Thaumarchaeota, Actinobacteria, Bacteroidetes and Cyanobacteria showed site-specific trends in abundance. Further taxonomic affiliations showed Gammaproteobacteria and Alphaproteobacteria to be dominant classes with high abundances of Bacilli in SBR_Stn58 and SBR_Stn113. Among the eukaryotic communities, the most abundant classes included Prasinophyceae, Saccharyomycetes and Sardariomycetes. Functional annotation showed metabolic activities such as carbohydrate, amino acid, nitrogen and phosphorus metabolisms to be uniformly distributed across all the studied stations. Pathways such as stress response, sulphur metabolism and motility-associated genes appeared in low abundances in SBR. Functional traits such as antibiotic resistance showed overwhelming dominance of genes involved in multidrug resistance along with widespread resistance towards commonly used antibiotics including Tetracycline, glycopeptide and aminoglycoside. Metal resistance genes including arsenic, nickel and copper were found in comparable abundances across the studied stations. The prevalence of ARG and MRG might indicate presence of pollutants and hint toward deteriorating ecosystem health status of Sundarbans mangrove.

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Section: Discussionmentioning

confidence: 99%

Metagenomic insights into surface water microbial communities of a South Asian mangrove ecosystem

Ghosh

Saha

Bhadury

2022

PeerJ

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“…bacteria. There are a few studies that also reported bacterial diversity through culture-based approaches from mangrove ecosystems (Palit and Das 2021 ; Mukherji et al 2020 ).…”

Section: Mangrove Ecosystemmentioning

confidence: 99%

Bacterial diversity in the aquatic system in India based on metagenome analysis—a critical review

Jasna

Nathan

Parvathi

et al. 2023

Environ Sci Pollut Res

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Microbial analysis has become one of the most critical areas in aquatic ecology and a crucial component for assessing the contribution of microbes in food web dynamics and biogeochemical processes. Initial research was focused on estimating the abundance and distribution of the microbes using microscopy and culture-based analysis, which are undoubtedly complex tasks. Over the past few decades, microbiologists have endeavored to apply and extend molecular techniques to address pertinent questions related to the function and metabolism of microbes in aquatic ecology. Metagenomics analysis has revolutionized aquatic ecology studies involving the investigation of the genome of a mixed community of organisms in an ecosystem to identify microorganisms, their functionality, and the discovery of novel proteins. This review discusses the metagenomics analysis of bacterial diversity in and around different aquatic systems in India.

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“…Mangrove sediments with these contaminants show an increase in the organic carbon content, which leads to alteration of the archaeal community composition. Halobacteriales from the Euryarchaeota was found to be the predominant group in hydrocarbon-polluted mangrove sediments (Mukherji et al 2020). The release of municipal and aquaculture sewage upstream from estuaries might also promote the growth of Methanosarcinaceae and enhance methane production in mangroves (Zhao et al 2019).…”

Section: Diversity and Distribution Of Archaea In Mangrove Wetlandsmentioning

confidence: 99%

“…Haloarchaea are extremophiles surviving in extreme salinities and are involved in bioremediation of contaminations. Two major haloarchaeal genera Haloferax and Haladaptatus have recently been successfully isolated form hydrocarbon polluted mangrove sediments in Sundarban area, which could be used to reduce the chemical oxygen demand (COD) of polluted mangrove sediments (Mukherji et al 2020).…”

Section: Archaeal Isolation From Mangrove Sedimentsmentioning

confidence: 99%

Diversity, metabolism and cultivation of archaea in mangrove ecosystems

Zhang

Chen

Yi-hua

et al. 2020

Mar Life Sci Technol

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Molecular and culture-based surveys of metabolically active hydrocarbon-degrading archaeal communities in Sundarban mangrove sediments

Cited by 15 publications

References 55 publications

Metagenomic insights into surface water microbial communities of a South Asian mangrove ecosystem

Metagenomic insights into surface water microbial communities of a South Asian mangrove ecosystem

Bacterial diversity in the aquatic system in India based on metagenome analysis—a critical review

Diversity, metabolism and cultivation of archaea in mangrove ecosystems

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