Microbial Ecology, Journal Year: 2021, Volume and Issue: 82(2), P. 344 - 355
Published: Jan. 16, 2021
Language: Английский
International Biodeterioration & Biodegradation, Journal Year: 2024, Volume and Issue: 190, P. 105767 - 105767
Published: March 11, 2024
Language: Английский
Citations
9
Applied Microbiology and Biotechnology, Journal Year: 2025, Volume and Issue: 109(1)
Published: Jan. 25, 2025
The construction of artificial reefs (ARs) is an effective way to restore habitats and increase breed fishery resources in marine ranches. However, studies on the impacts ARs structure, function, assembly patterns bacterial community (BC), which important biogeochemical cycles, are lacking. compositions, diversities, patterns, predicted functions, key environmental factors attached free-living microbial communities five-year (O-ARs) one-year (N-ARs) Fangchenggang, China, were analyzed via 16S rRNA gene sequencing. Proteobacteria was dominant taxon all samples, with average relative abundance 44.48%, followed by Bacteroidetes (17.42%) Cyanobacteria (15.19%). composition phyla similar between O-ARs N-ARs, but greater water column (38.56%) than AR surface (mean 7.40%). results revealed that Shannon‒Wiener diversity indices 5.64 5.45 for respectively. Principal coordinate analysis (PCoA) different distributions N-ARs community. Additionally, network more complex stable indicating 5-year presented a diverse overall. KEGG database used predict nitrogen metabolism, carbon membrane transport accounting 29.93% total functional abundances. neutral model stochastic processes (67.2%) dominated BCs. Interestingly, deterministic may be increasingly aggregation over time. Moreover, null dispersal limitation most process among processes, 57.14% total. In addition, redundancy (RDA) hydrological obviously impacted structure function Our showed slightly promotes local diversities community, it requires longer time enhance reefs. • Artificial facilitate functions Stochastic dominate Nitrogen metabolism
Language: Английский
Citations
1
The ISME Journal, Journal Year: 2020, Volume and Issue: 14(4), P. 1042 - 1056
Published: Jan. 27, 2020
Abstract Surveys of 16S rRNA gene sequences derived from marine sediments have indicated that a widely distributed group Gammaproteobacteria, named “JTB255-Marine Benthic Group” (now the candidate order Woeseiales), accounts for 1–22% retrieved sequences. Despite their ubiquity in seafloor communities, little is known about distribution and specific ecological niches deep sea, which constitutes largest biome globally. Here, we characterized phylogeny, environmental patterns, abundance, metabolic potential Woeseiales bacteria with focus on representatives sea. From phylogenetic analysis publicly available (≥1400 bp, n = 994), identified lineages greater prevalence sea than coastal environments, pattern corroborated by oligotypes recovered 28 globally sediment samples. Cell counts revealed accounted 5 ± 2% all microbial cells deep-sea surface at 23 sites. Comparative analyses genome, metagenome bins, single-cell genomes suggested members corresponding clades are likely to grow proteinaceous matter, potentially detrital cell membranes, walls, other organic remnants sediments.
Language: Английский
Citations
70
Environmental Microbiology, Journal Year: 2018, Volume and Issue: 21(2), P. 682 - 701
Published: Dec. 26, 2018
Metal-sulfides are wide-spread in marine benthic habitats. At deep-sea hydrothermal vents, they occur as massive sulfide chimneys formed by mineral precipitation upon mixing of reduced vent fluids with cold oxygenated sea water. Although microorganisms inhabiting actively venting and utilizing compounds supplied the well studied, only little is known about inactive chimneys. In this study, we combined 16S rRNA gene-based community profiling from Manus Basin (SW Pacific) radiometric dating, metagenome (n = 4) metaproteome 1) analyses. Our results shed light on potential lifestyles yet poorly characterized bacterial clades colonizing These include sulfate-reducing Nitrospirae sulfide-oxidizing Gammaproteobacteria dominating most chimney communities. phylogenetic analysis attributed gammaproteobacterial to recently described Woeseiaceae family SSr-clade found sediments around world. Metaproteomic data identified these autotrophic sulfide-oxidizers potentially facilitating metal-sulfide dissolution via extracellular electron transfer. Considering wide distribution environments such vents sediments, microbially accelerated neutrophilic oxidation might be a globally relevant process element cycling considerable energy source for carbon fixation
Language: Английский
Citations
64
The Science of The Total Environment, Journal Year: 2019, Volume and Issue: 705, P. 135806 - 135806
Published: Dec. 2, 2019
Language: Английский
Citations
61
Applied and Environmental Microbiology, Journal Year: 2019, Volume and Issue: 85(6)
Published: Jan. 11, 2019
Salt marshes represent highly dynamic ecosystems where the atmosphere, continents, and ocean interact. The bacterial distribution in this ecosystem is of great ecological concern, as it provides essential functions acting on services. However, processes mediating assembly are poorly understood for salt marshes, especially ones located estuaries. In study, communities an estuarine marsh south Hangzhou Bay were investigated. results revealed intricate interplay between stochastic deterministic studied gradient system. Collectively, our findings illustrate main drivers community assembly, taking into consideration changes sediment abiotic variables potential biotic interactions. Thus, we offer new insights shaping ecosystems.
Language: Английский
Citations
60
Frontiers in Microbiology, Journal Year: 2020, Volume and Issue: 11
Published: March 4, 2020
Rhizosphere bacterial community structures and their determining drivers have been studied in a variety of marine freshwater ecosystems for range plant species. However, there is still limited information about the influence habitat on microbial communities seagrass beds. This study aimed to determine which factors (habitat species) crucial roles rhizospheric bacteria associated with two tropical species (Thalassia hemprichii Enhalus acoroides) that are dominant at Xincun Bay Tanmen Harbor Hainan Island, South China. Using Illumina HiSeq sequencing, we observed substantial differences richness, diversity, relative abundances taxa between habitats, were characterized differently sediment type nutrient status. Rhizospheric from sandy eutrophic was dominated by Desulfobacteraceae Helicobacteraceae, primarily involved sulfate cycling, whereas rhizosphere microbes reef flat oligotrophic Vibrionaceae Woeseiaceae, may play important nitrogen carbon fixing. Additionally, speculated host-specific effects these be covered under rich conditions mixed patches, emphasizing importance status vegetation composition patches. In addition, our confirmed Proteobacteria more adapted environment than low occurred bulk sediment, well-known fermentative phylum Firmicutes.
Language: Английский
Citations
55
ISME Communications, Journal Year: 2021, Volume and Issue: 1(1)
Published: Dec. 1, 2021
The Arctic Ocean features extreme seasonal differences in daylight, temperature, ice cover, and mixed layer depth. However, the diversity ecology of microbes across these contrasting environmental conditions remain enigmatic. Here, using autonomous samplers sensors deployed at two mooring sites, we portray an annual cycle microbial diversity, nutrient concentrations physical oceanography major hydrographic regimes Fram Strait. ice-free West Spitsbergen Current displayed a marked separation into productive summer (dominated by diatoms carbohydrate-degrading bacteria) regenerative winter state heterotrophic Syndiniales, radiolarians, chemoautotrophic bacteria, archaea). autumn post-bloom with maximal depletion featured Coscinodiscophyceae, Rhodobacteraceae (e.g. Amylibacter) SAR116 clade. Winter replenishment nitrate, silicate phosphate, linked to vertical mixing unique microbiome that included Magnetospiraceae Dadabacteriales, fueled following phytoplankton bloom. spring-summer succession Phaeocystis, Grammonema Thalassiosira coincided ephemeral peaks Aurantivirga, Formosa, Polaribacter NS lineages, indicating metabolic relationships. In East Greenland Current, deeper sampling depth, cover polar water masses concurred weaker seasonality stronger signature. ice-related comprised Bacillaria, Naviculales, Polarella, Chrysophyceae Flavobacterium ASVs. Low advection Atlantic Water diminished abundances bacteria while others such as Phaeocystis increased, suggesting Atlantification alters structure eventually biological carbon pump. These insights promote understanding night Ocean, region severely affected climate change.
Language: Английский
Citations
52
Environmental Microbiology, Journal Year: 2024, Volume and Issue: 26(2)
Published: Jan. 12, 2024
Abstract Micritization is an early diagenetic process that gradually alters primary carbonate sediment grains through cycles of dissolution and reprecipitation microcrystalline calcite (micrite). Typically observed in modern shallow marine environments, micritic textures have been recognized as a vital component storage flow hydrocarbon reservoirs, attracting scientific economic interests. Due to their endolithic activity the ability promote nucleation crystals, microorganisms progressively shown be key players micritization, placing this at boundary between geological biological realms. However, published research mainly based on geochemical perspectives, overlooking ecological complexity microbial communities micritized sediments. In paper, we summarize state‐of‐the‐art gaps micritization from ecology perspective. Since growing body literature successfully applies vitro situ ‘fishing’ strategies unveil elusive expand our knowledge diversity, encourage application study micritization. By employing these research, advocate promoting interdisciplinary approach/perspective identify understand overlooked/neglected pathways governing phenomenon ecology/dynamics, reshaping comprehension process.
Language: Английский
Citations
6
Environmental Microbiology, Journal Year: 2017, Volume and Issue: 20(2), P. 450 - 461
Published: Aug. 3, 2017
Molecular hydrogen (H2 ) is the key intermediate in anaerobic degradation of organic matter. Its removal by H2 -oxidizing microorganisms essential to keep energetically favourable. Sulfate-reducing (SRM) are known as main scavengers anoxic marine sediments. Although community SRM has been extensively studied, those consuming situ completely unknown. We combined metagenomics, PCR-based clone libraries, single-amplified genomes (SAGs) and metatranscriptomics identify potentially -consuming coastal The vast majority SRM-related ase sequences were assigned group 1b 1c [NiFe]-H2 ases deltaproteobacterial order Desulfobacterales. Surprisingly, same sequence types similarly highly expressed spring summer, suggesting that these stable integral members community. Notably, one cluster from 1 consistently accounted for around half all transcripts. Using SAGs, we could link this with 16S rRNA genes uncultured Sva0081-group family Desulfobacteraceae. Sequencing gene amplicons libraries suggested high abundance Sva0081 also other Together Desulfobacterales likely important -scavengers
Language: Английский
Citations
54