Abstract:
BACKGROUND:Changes in aboveground plant species diversity as well as variations of environmental conditions such as exposure of ecosystems to elevated concentrations of atmospheric carbon dioxide may lead to changes in metabolic activity, composition and diversity of belowground microbial communities, both bacterial and fungal. RESULTS:We examined soil samples taken from a biodiversity x CO2 grassland experiment where replicate plots harboring 5, 12, or 31 different plant species had been exposed to ambient or elevated (600 ppm) levels of carbon dioxide for 5 years. Analysis of soil bacterial communities in these plots by temporal temperature gradient gel electrophoresis (TTGE) showed that dominant soil bacterial populations varied only very little between different experimental treatments. These populations seem to be ubiquitous. Likewise, screening of samples on a high-resolution level by terminal restriction fragment length polymorphism (T-RFLP) showed that increased levels of carbon dioxide had no significant influence on both soil bacterial community composition (appearance and frequency of operational taxonomic units, OTUs) and on bacterial richness (total number of different OTUs). In contrast, differences in plant diversity levels had a significant effect on bacterial composition but no influence on bacterial richness. Regarding species level, several bacterial species were found only in specific plots and were related to elevated carbon dioxide or varying plant diversity levels. For example, analysis of T-RFLP showed that the occurrence of Salmonella typhimurium was significantly increased in plots exposed to elevated CO2 (P < 0.05). CONCLUSION:Plant diversity levels are affecting bacterial composition (bacterial types and their frequency of occurrence). Elevated carbon dioxide does not lead to quantitative alteration (bacterial richness), whereas plant diversity is responsible for qualitative changes (bacterial diversity).
journal_name
BMC Microbioljournal_title
BMC microbiologyauthors
Grüter D,Schmid B,Brandl Hdoi
10.1186/1471-2180-6-68subject
Has Abstractpub_date
2006-07-27 00:00:00pages
68issn
1471-2180pii
1471-2180-6-68journal_volume
6pub_type
杂志文章相关文献
BMC MICROBIOLOGY文献大全abstract:BACKGROUND:Botrytis cinerea secretes a high number of proteins that are predicted to have numerous O-glycosylation sites, frequently grouped in highly O-glycosylated regions, and analysis of mutants affected in O-glycosylation has shown, in B. cinerea and in other phytopathogenic fungi, that this process is important f...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-014-0254-y
更新日期:2014-10-12 00:00:00
abstract:BACKGROUND:Streptococcus gordonii is one of several species that can initiate the formation of oral biofilms that develop into the complex multispecies microbial communities referred to as dental plaque. It is in the context of dental plaque that periodontal pathogens such as Porphyromonas gingivalis cause disease. We ...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-12-211
更新日期:2012-09-18 00:00:00
abstract:BACKGROUND:Rhodobacter sphaeroides 2.4.1 is a metabolically versatile organism that belongs to α-3 subdivision of Proteobacteria. The present study was to identify the extent, history, and role of gene duplications in R. sphaeroides 2.4.1, an organism that possesses two chromosomes. RESULTS:A protein similarity search...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-10-331
更新日期:2010-12-30 00:00:00
abstract:BACKGROUND:Fungi constitute an important yet frequently neglected component of the human microbiota with a possible role in health and disease. Fungi and bacteria colonise the infant gastrointestinal tract in parallel, yet most infant microbiome studies have ignored fungi. Milk is a source of diverse and viable bacteri...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-020-01829-0
更新日期:2020-06-05 00:00:00
abstract:BACKGROUND:Crohn's disease (CD) is a high morbidity chronic inflammatory disorder of unknown aetiology. Adherent-invasive Escherichia coli (AIEC) has been recently implicated in the origin and perpetuation of CD. Because bacterial biofilms in the gut mucosa are suspected to play a role in CD and biofilm formation is a ...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-9-202
更新日期:2009-09-21 00:00:00
abstract:BACKGROUND:Probiotics have been reported to reduce total cholesterol levels in vitro, but more evidence is needed to determine the clinical relevance of this activity. Chinese traditional fermented pickles are a good source of lactic acid bacteria. Therefore, pickle samples were collected for screening lactic acid bact...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-020-01922-4
更新日期:2020-08-04 00:00:00
abstract:BACKGROUND:During June-July 2012, six imipenem-resistant Escherichia coli isolates were isolated from two patients hospitalized in a ward of one large tertiary-care hospital in Genoa, Italy. Genetic features associated with blaNDM-4 gene were investigated. RESULTS:The isolates exhibited the same PFGE profile and a mul...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-14-148
更新日期:2014-06-07 00:00:00
abstract:BACKGROUND:The genus Phytophthora includes a group of agriculturally important pathogens and they are commonly regarded as water molds. They produce motile zoospores that can move via water currents and on their own locomotion in aquatic environments. However, zoosporic response to dissolved oxygen, an important water ...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-14-124
更新日期:2014-05-13 00:00:00
abstract:BACKGROUND:Similar to Gram-negative bacteria, the outer membrane (OM) of the pathogenic spirochete, Borrelia burgdorferi, contains integral OM-spanning proteins (OMPs), as well as membrane-anchored lipoproteins. Although the mechanism of OMP biogenesis is still not well-understood, recent studies have indicated that a ...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-12-60
更新日期:2012-04-20 00:00:00
abstract:BACKGROUND:The life cycle of a bacteriophage has tightly programmed steps to help virus infect its host through the interactions between the bacteriophage and its host proteins. However, bacteriophage-host protein interactions in high temperature environment remain poorly understood. To address this issue, the protein ...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-13-48
更新日期:2013-02-26 00:00:00
abstract:BACKGROUND:Trichomonas vaginalis is a human urogenital pathogen responsible for trichomonosis, the number-one, non-viral sexually transmitted disease (STD) worldwide, while T. tenax is a commensal of the human oral cavity, found particularly in patients with poor oral hygiene and advanced periodontal disease. The exten...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-9-58
更新日期:2009-03-18 00:00:00
abstract:BACKGROUND:Probiotics are increasingly applied to prevent and treat a range of infectious, immune related and gastrointestinal diseases. Despite this, the mechanisms behind the putative effects of probiotics are poorly understood. One of the suggested modes of probiotic action is modulation of the endogenous gut microb...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-017-1090-7
更新日期:2017-08-17 00:00:00
abstract:BACKGROUND:Mycoplasmas-contamination of Orientia tsutsugamushi, one of the obligated intracellular bacteria, is a very serious problem in in vitro studies using cell cultures because mycoplasmas have significant influence on the results of scientific studies. Only a recommended decontamination method is to passage the ...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-13-32
更新日期:2013-02-08 00:00:00
abstract:BACKGROUND:Alleviating arsenic (As) contamination is a high-priority environmental issue. Hyperaccumulator plants may harbor endophytic bacteria able to detoxify As. Therefore, we investigated the distribution, diversity, As (III) resistance levels, and resistance-related functional genes of arsenite-resistant bacteria...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-018-1184-x
更新日期:2018-05-08 00:00:00
abstract:BACKGROUND:Thiomonas strains are ubiquitous in arsenic-contaminated environments. Differences between Thiomonas strains in the way they have adapted and respond to arsenic have never been studied in detail. For this purpose, five Thiomonas strains, that are interesting in terms of arsenic metabolism were selected: T. a...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-9-127
更新日期:2009-06-23 00:00:00
abstract:BACKGROUND:In humans, the intestinal microbiota plays an important role in the maintenance of host health by providing energy, nutrients, and immunological protection. Applying current molecular methods is necessary to surmount the limitations of classical culturing techniques in order to obtain an accurate description...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-9-123
更新日期:2009-06-09 00:00:00
abstract:BACKGROUND:The date palm root borer Oryctes agamemnon (Coleoptera: Scarabaeidae) is one of the major pests of palms. In Saudi Arabia, both larvae and adults of Oryctes are particularly troublesome, especially during the establishment of young date palm orchards. Endosymbiotic bacteria are known to have a key role in fo...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-015-0422-8
更新日期:2015-04-22 00:00:00
abstract:BACKGROUND:Sinorhizobium meliloti is an agriculturally important model symbiont. There is an ongoing need to update and improve its genome annotation. In this study, we used a high-throughput pyrosequencing approach to sequence the transcriptome of S. meliloti, and search for new bacterial genes missed in the previous ...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-8-72
更新日期:2008-05-02 00:00:00
abstract:BACKGROUND:Microbiota from different niches within the canine oral cavity were profiled and compared. Supragingival plaque and stimulated saliva, were collected alongside samples from the buccal and tongue dorsum mucosa, from 14 Labrador retrievers at three timepoints within a 1 month timeframe. The V3-V4 region of the...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-020-1704-3
更新日期:2020-02-28 00:00:00
abstract:BACKGROUND:Avian pathogenic Escherichia coli (APEC) and uropathogenic E. coli (UPEC) are the two main subsets of extraintestinal pathogenic E. coli (ExPEC). Both types have multiple iron acquisition systems, including heme and siderophores. Although iron transport systems involved in the pathogenesis of APEC or UPEC ha...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-12-143
更新日期:2012-07-20 00:00:00
abstract:BACKGROUND:Tsetse flies (Diptera: Glossinidae) are solely responsible for the transmission of African trypanosomes, causative agents of sleeping sickness in humans and nagana in livestock. Due to the lack of efficient vaccines and the emergence of drug resistance, vector control approaches such as the sterile insect te...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-018-1295-4
更新日期:2018-11-23 00:00:00
abstract:BACKGROUND:Edwardsiella ictaluri is a Gram-negative facultative intracellular anaerobe and the etiologic agent of enteric septicemia of channel catfish (ESC). To the catfish industry, ESC is a devastating disease due to production losses and treatment costs. Identification of virulence mechanisms of E. ictaluri is crit...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-019-1429-3
更新日期:2019-03-08 00:00:00
abstract:BACKGROUND:Bacterial adhesive proteins, called adhesins, are frequently the decisive factor in initiation of a bacterial infection. Characterization of such molecules is crucial for the understanding of bacterial pathogenesis, design of vaccines and development of antibacterial drugs. Because adhesins are frequently di...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-11-117
更新日期:2011-05-27 00:00:00
abstract:BACKGROUND:Understanding mollicutes is challenging due to their variety and relationship with host cells. Invasion has explained issues related to their opportunistic role. Few studies have been done on the Ureaplasma diversum mollicute, which is detected in healthy or diseased bovine. The invasion in Hep-2 cells of fo...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-10-83
更新日期:2010-03-17 00:00:00
abstract:BACKGROUND:The symbiotic bacteria associated with edible fungi are valuable microbial resources worthy of in-depth exploration. It is important to analyze the community structure and succession of symbiotic bacteria in mushrooms. This can assist in the isolation of growth-promoting strains that have an essential relati...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-020-01998-y
更新日期:2020-10-14 00:00:00
abstract:BACKGROUND:Microorganisms are a large and diverse form of life. Many of them live in association with large multicellular organisms, developing symbiotic relations with the host and some have even evolved to form obligate endosymbiosis. All Carpenter ants (genus Camponotus) studied hitherto harbour primary endosymbioti...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-9-29
更新日期:2009-02-06 00:00:00
abstract:BACKGROUND:The infections caused by antibiotic multidrug-resistant bacteria seriously threaten human health. To prevent and cure the infections caused by multidrug-resistant bacteria, new antimicrobial agents are required. Antimicrobial peptides are ideal therapy candidates for antibiotic-resistant pathogens. However, ...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-015-0389-5
更新日期:2015-03-03 00:00:00
abstract:BACKGROUND:Enteroaggregative (EAEC) and Shiga-toxin producing Escherichia coli (STEC) are a major cause of diarrhea worldwide. E. coli carrying both virulence factors characteristic for EAEC and STEC and producing extended-spectrum beta-lactamase caused severe and protracted disease during an outbreak of E. coli O104:H...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/s12866-016-0827-z
更新日期:2016-09-09 00:00:00
abstract:BACKGROUND:Exposure of cells to environmental stress conditions can lead to the interruption of several intracellular processes, in particular those performed by macromolecular complexes such as the spliceosome. RESULTS:During nucleotide sequencing of cDNA libraries constructed using RNA isolated from B. emersonii cel...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-9-231
更新日期:2009-10-29 00:00:00
abstract:BACKGROUND:Microbial biofilms are known to cause an increasing number of chronic inflammatory and infectious conditions. A classical example is chronic periodontal disease, a condition initiated by the subgingival dental plaque biofilm on gingival epithelial tissues. We describe here a new model that permits the examin...
journal_title:BMC microbiology
pub_type: 杂志文章
doi:10.1186/1471-2180-9-280
更新日期:2009-12-31 00:00:00