Abstract:
:Microbial communities of ancient Mediterranean sapropels, buried sediment layers of high organic matter, were analyzed by most probable number (MPN) approaches. Mineral media containing different carbon sources in sub-millimolar concentrations were used. MPN numbers were elevated in sapropels and at the sediment surface, which mirrored total cell count distributions. Highest MPN counts were obtained with a mixture of different monomeric and polymeric substrates, with amino acids or with long-chain fatty acids as sole carbon sources. These values reached up to 2 x 10(7) cm(-3), representing 3.3% of the total cell count. A total of 98 pure cultures were isolated from the highest positive dilutions of the MPN series, representing the most abundant microorganisms culturable by the methods used. The strains were identified by molecular biological methods and could be grouped into 19 different phylotypes. They belonged to the alpha-, beta-, gamma-, and delta-Proteobacteria, to the Actinobacteria and the Firmicutes. However, about half of the number of isolates was closely related to the genera Photobacterium and Agrobacterium. Regarding the high cultivation success, these organisms can be assumed to be typical sapropel bacteria, representing a substantial part of the culturable indigenous microbial community.
journal_name
FEMS Microbiol Ecoljournal_title
FEMS microbiology ecologyauthors
Süss J,Engelen B,Cypionka H,Sass Hdoi
10.1016/j.femsec.2004.07.010subject
Has Abstractpub_date
2004-12-27 00:00:00pages
109-21issue
1eissn
0168-6496issn
1574-6941pii
S0168-6496(04)00234-Xjournal_volume
51pub_type
杂志文章abstract::Phytate-mineralizing rhizobacteria (PMR) perform an essential function for the mineralization of organic phosphorus but little is known about their ecology in soils and rhizosphere. In this study, PCR-based methods were developed for detection and quantification of the Bacillus β-propeller phytase (BPP) gene. Experime...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01480.x
更新日期:2013-02-01 00:00:00
abstract::The aim of this study was to investigate the gut bacterial communities of Nephrops norvegicus individuals, using a suite of molecular tools consisting of automated ribosomal intergenic spacer analysis, 16S rRNA gene-internal transcribed spacer clone libraries and FISH. The animals were collected from Pagasitikos Gulf,...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2010.00964.x
更新日期:2010-11-01 00:00:00
abstract::Bacterial diversity is believed to be controlled both by bottom-up and top-down mechanisms such as nutrient competition, predation and viral lysis. We hypothesise that lytic viruses create trophic niches within bacterial communities, and thus primarily control richness and evenness, while substrate composition primari...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01463.x
更新日期:2013-01-01 00:00:00
abstract::This study evaluated the carriage of AmpC and extended-spectrum beta-lactamase (ESBL) genes and associated plasmids in faecal bacteria of Canadian corvids. Faecal samples from 449 birds in five roosting sites across Canada were analyzed using selective media, screening for AmpC and ESBL genes by PCR, and sequencing. G...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiy166
更新日期:2018-11-01 00:00:00
abstract::MRSA in humans, pets and livestock have been widely investigated, nevertheless, there is still little information of MRSA in wild animals. Therefore, this study aimed to investigate the occurrence and antimicrobial resistance profiles of methicillin-resistant staphylococci (MRS) in wild Iberian hares and to characteri...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiz204
更新日期:2020-01-01 00:00:00
abstract::Methanogenesis from acetate (aceticlastic methanogenesis or syntrophic acetate oxidation (SAO) coupled with hydrogenotrophic methanogenesis) is the most important step for the biogas process. The major environmental factors influencing methanogenesis are volatile fatty acids, ammonia, pH, and temperature. In our study...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01456.x
更新日期:2013-01-01 00:00:00
abstract::The diversity of Salmonella was analysed in biofilm and water samples from the spring and slough arms of Spring Lake, the headwaters of the San Marcos River, Texas, during the drought of 2011, with only one potential run-off event at the beginning of the study. Salmonellae were detected in semiselective enrichment cul...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12021
更新日期:2013-03-01 00:00:00
abstract::Abstract In a previous study, we isolated a collection of atrazine-degrading bacteria from various soils. The aim of this study was to localise the atrazine-degrading genes in these 25 atrazine-degrading strains. In the case of the Gram-negative strains of Chelatobacter heintzii, six to seven plasmids were observed. T...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2002.tb00967.x
更新日期:2002-07-01 00:00:00
abstract::Metagenomics combined with 16S rRNA gene sequence analyses was applied to unveil the taxonomic composition and functional diversity of the farmed adult turbot gastrointestinal (GI) microbiome. Proteobacteria and Firmicutes which existed in both GI content and mucus were dominated in the turbot GI microbiome. 16S rRNA ...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12174
更新日期:2013-12-01 00:00:00
abstract::This study was conducted to characterize the vertical distribution of bacterial and archaeal communities in the water and sediment of Lake Taihu, which underwent a change in trophic status from oligotrophic to hypertrophic in last half of the 20th century. The results revealed that the bacterial communities in differe...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2009.00761.x
更新日期:2009-11-01 00:00:00
abstract::Rhipicephalus ticks are competent vectors of several pathogens, such as Spotted Fever Group Rickettsiae (SFGR) and many Babesia species. Within this genus, different R. sanguineus s.l. lineages show an unequal vector competence and resistance regarding some pathogenic strains. Current literature supports that tick end...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa072
更新日期:2020-06-01 00:00:00
abstract::Identifying functional microorganisms involved in the degradation of high-molecular-mass polycyclic aromatic hydrocarbons (HMM-PAHs) in agricultural soil environments could assist in developing bioremediation strategies for soil PAH contamination. Active populations of HMM-PAH degraders in agricultural soils are curre...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiy026
更新日期:2018-03-01 00:00:00
abstract::Drift ice, open water and under-ice water bacterial communities covering several developmental stages from open water to thick ice were studied in the northern Baltic Sea. The bacterial communities were assessed with 16S rRNA gene terminal-restriction fragment length polymorphism and cloning, together with bacterial a...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiu022
更新日期:2015-02-01 00:00:00
abstract::A large amount of sequencing data is produced in microbial community ecology studies using the high-throughput sequencing technique, especially amplicon-sequencing-based community data. After conducting the initial bioinformatic analysis of amplicon sequencing data, performing the subsequent statistics and data mining...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa255
更新日期:2020-12-17 00:00:00
abstract::Primary succession after glacier retreat has been widely studied in plant communities, but bacterial succession is still poorly understood. In particular, few studies of microbial succession have been performed in the Arctic. We investigated the shifts in bacterial community structure and soil physicochemical properti...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiw213
更新日期:2017-01-01 00:00:00
abstract::Plant symbioses with fungal root endophytes span a continuum from mutualistic to parasitic outcomes, and are highly variable depending on the genotype of each symbiont. The abiotic context in which interactions occur also seems to influence the outcome of plant-endophyte symbioses, but we lack understanding of its rel...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fix162
更新日期:2018-02-01 00:00:00
abstract::Bacteria catalyze the dissolution and re-precipitation of gold, thereby driving the biogeochemical cycle of gold. Dissolution of gold/silver and re-precipitation of gold transforms gold particles by increasing gold purity. While soluble gold complexes are highly cytotoxic, little is known about how gold cycling affect...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiz078
更新日期:2019-07-01 00:00:00
abstract::The asexual ectomycorrhizal fungus Cenococcum geophilum has a wide geographic range in diverse forest ecosystems. Although its genetic diversity has been documented at a stand or regional scale, knowledge of spatial genetic structure is limited. We studied the genetic diversity and spatial structure of C. geophilum in...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiv108
更新日期:2015-10-01 00:00:00
abstract::A roundtable discussion held at the fourth International Symposium on the Environmental Dimension of Antibiotic Resistance (EDAR4) considered key issues concerning the impact on the environment of antibiotic use in agriculture and aquaculture, and emissions from antibiotic manufacturing. The critical control points fo...
journal_title:FEMS microbiology ecology
pub_type: 共识发展会议,杂志文章
doi:10.1093/femsec/fix185
更新日期:2018-03-01 00:00:00
abstract::Ectomycorrhizal fungi (EMF) provide nutrients to their hosts by means of hyphae that extend beyond nutrient-depleted rhizosphere soil. Soil bacteria may compete with EMF for nutrients or may act synergistically to enhance nutrient supply to hosts. To assess the interactions between hyphae and bacteria, two types of sm...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2011.01060.x
更新日期:2011-05-01 00:00:00
abstract::The aim of this work is to document the complex nutritional strategy developed by kleptoplastic intertidal foraminifera. We study the mixotrophic ability of a common intertidal foraminifer, Elphidium williamsoni, by (i) investigating the phylogenetic identity of the foraminiferal kleptoplasts, (ii) following their oxy...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiz046
更新日期:2019-05-01 00:00:00
abstract::Lakes are exposed to anthropogenic pollution including the release of allochthonous bacteria into their waters. Antibiotic resistance genes (ARGs) stabilize in bacterial communities of temperate lakes, and these environments act as long-term reservoirs of ARGs. Still, it is not clear if the stabilization of the ARGs i...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa002
更新日期:2020-02-01 00:00:00
abstract::Archaeal communities and the factors regulating their diversity in high altitude lakes are poorly understood. Here, we provide the first high-throughput sequencing study of Archaea from Tibetan Plateau lake sediments. We analyzed twenty lake sediments from the world's highest and largest plateau and found diverse arch...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiw033
更新日期:2016-03-01 00:00:00
abstract::Cyanobacterial blooms have become more frequent as a result of eutrophication in lakes. The accumulation and breakdown of huge cyanobacterial biomasses often cause hypoxia in lakes. However, little is known about microbial diversity in these areas. In this study, we characterized the bacterial community composition of...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2011.01262.x
更新日期:2012-03-01 00:00:00
abstract::A total of 39 phenol- and p-cresol-degraders isolated from the river water continuously polluted with phenolic compounds of oil shale leachate were studied. Species identification by BIOLOG GN analysis revealed 21 strains of Pseudomonas fluorescens (4, 8 and 9 of biotypes A, C and G, respectively), 12 of Pseudomonas m...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2000.tb00684.x
更新日期:2000-03-01 00:00:00
abstract::Epsilonproteobacteria are widely distributed in marine, freshwater, and terrestrial environments, although most well-studied groups are from hydrothermal vents and the human intestinal tract. The environmental variables that control epsilonproteobacterial communities in sulfidic terrestrial environments, however, are ...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2011.01231.x
更新日期:2012-02-01 00:00:00
abstract::The terms 'brûlé' and 'burnt' are used to describe vegetation-devoid areas of the ground around a range of woody plants interacting with certain truffle species. Increasing interest is currently focused on a systematic search for and study of volatile organic compounds (VOCs) emitted by truffles in the course of their...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章,评审
doi:10.1111/j.1574-6941.2011.01283.x
更新日期:2012-04-01 00:00:00
abstract::We investigated 16S rRNA gene diversity at a high sediment depth resolution (every 5 cm, top 30 cm) in an active site of the Kazan mud volcano, East Mediterranean Sea. A total of 242 archaeal and 374 bacterial clones were analysed, which were attributed to 38 and 205 unique phylotypes, respectively (> or = 98% similar...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2010.00857.x
更新日期:2010-06-01 00:00:00
abstract::Antimicrobial resistance is of global concern. Most antimicrobial use is in agriculture; manures and slurry are especially important because they contain a mix of bacteria, including potential pathogens, antimicrobial resistance genes and antimicrobials. In many countries, manures and slurry are stored, especially ove...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiw040
更新日期:2016-04-01 00:00:00
abstract::Our planet offers many opportunities for life on the edge: high and low temperatures, high salt concentrations, acidic and basic conditions and toxic environments, to name but a few extremes. Recent studies have revealed the diversity of fungi that can occur in stressful environments that are hostile to most eukaryote...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章,评审
doi:10.1111/j.1574-6941.2009.00794.x
更新日期:2010-01-01 00:00:00