Abstract:
:The Hatton-Rockall Basin (North-East Atlantic) is an area with potential for deep-sea (2,900 m) hydrocarbon exploration. Following the Deepwater Horizon oil spill, many investigations into the responses of sediment microbial communities to oil pollution have been undertaken. However, hydrostatic pressure is a parameter that is often omitted due to the technical difficulties associated with conducting experiments at high pressure (>10 MPa). In this study, sediments from 2,900 m in the Hatton-Rockall Basin, following a one-week decompression period in a temperature-controlled room at 5°C, were incubated in factorial combinations of 0.1 and 30 MPa, 5 and 20°C, and contamination with a hydrocarbon mixture or uncontaminated controls to evaluate the effect of these environmental variables on the bacterial community composition. Our results revealed varying effects of pressure, temperature, and oil contamination on the composition of the bacterial community within the sediment. Temperature was the strongest determinant of differences in the bacterial community structure between samples followed by pressure. Oil contamination did not exert a strong change in the sediment bacterial community structure when pressure and temperature conditions were held at in situ levels (30 MPa and 5°C). The γ-proteobacteria Pseudomonas and Colwellia, and several Bacteroidetes dominated communities at 30 MPa. In contrast, hydrocarbon degraders such as Halomonas, Alcanivorax, and Marinobacter decreased in relative abundance at the same pressure. This study highlights the importance of considering hydrostatic pressure in ex situ investigations into hydrocarbon-degrading deepwater microbial communities.
journal_name
Microbiologyopenjournal_title
MicrobiologyOpenauthors
Perez Calderon LJ,Gontikaki E,Potts LD,Shaw S,Gallego A,Anderson JA,Witte Udoi
10.1002/mbo3.768subject
Has Abstractpub_date
2019-06-01 00:00:00pages
e00768issue
6issn
2045-8827journal_volume
8pub_type
杂志文章相关文献
MicrobiologyOpen文献大全abstract::Pseudomonas aeruginosa is a Gram negative, opportunistic pathogen that uses the overproduction of alginate, a surface polysaccharide, to form biofilms in vivo. Overproduction of alginate, also known as mucoidy, affords the bacterium protection from the host's defenses and facilitates the establishment of chronic lung ...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.86
更新日期:2013-06-01 00:00:00
abstract::Resistance to colistin, mediated by chromosomal mutations and more recently, by plasmid-borne mcr genes, is increasingly being reported in bacterial isolates taken from humans, animals, farms, foods, and the environment. To easily identify and contain this quickly spreading menace, efficient diagnostics that are cheap...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.682
更新日期:2019-04-01 00:00:00
abstract::Considering the ever-growing usage of trivalent salts in water treatment, for example, lanthanum salts in rare earth, AlCl3 and FeCl3 , the effects of different trivalent cations on the bacterium Escherichia coli (E. coli) ATCC 11775 strain have been studied in aqueous solutions. From colony incubation studies, the co...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.574
更新日期:2018-06-01 00:00:00
abstract::Soil water content (SWC) is an important determinant for nutrient cycling and microorganism activity in the grassland ecosystem. Lakes have a positive effect on the water supply of the neighboring ecosystem. However, information evaluating whether newly built lakes improve the physiochemical properties and microorgani...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.912
更新日期:2019-12-01 00:00:00
abstract::A new type of structural extracellular polymers (EPS) was extracted from aerobic granular sludge dominated by ammonium-oxidizing bacteria. It was analyzed by Raman and FTIR spectroscopy to characterize specific amino acids and protein secondary structure, and by SDS-PAGE with different stains to identify different gly...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.616
更新日期:2018-12-01 00:00:00
abstract::The composition and function of the microbial community in the gastrointestinal tract (GIT) have increasingly captured the attention of nutritionists because these traits affect the nutrient utilization efficiency and health of host animals. Little information has been reported on these aspects of the goat GIT. This s...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.820
更新日期:2019-09-01 00:00:00
abstract::Pseudomonas aeruginosa is a good environmental microorganism capable of degrading decabromodiphenyl ether (BDE-209). This paper studied the effect of Cu2+ and humic acid (HA) extracted from e-waste contaminated soils on biodegradation of BDE-209 by P. aeruginosa. The adsorption isotherms of Cu2+ on HA, the crude enzym...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.439
更新日期:2017-06-01 00:00:00
abstract::Urinary tract infections (UTIs) are among the most common bacterial infections in humans. Although a number of bacteria can cause UTIs, most cases are due to infection by uropathogenic Escherichia coli (UPEC). UPEC are a genetically heterogeneous group that exhibit several virulence factors associated with colonizatio...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.756
更新日期:2019-06-01 00:00:00
abstract::Streptococcus dysgalactiae subsp. dysgalactiae (SDSD) is a major cause of bovine mastitis and has been regarded as an animal-restricted pathogen, although rare infections have been described in humans. Previous studies revealed the presence of virulence genes encoded by phages of the human pathogen Group A Streptococc...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.623
更新日期:2019-01-01 00:00:00
abstract::UV resistance of bacteria isolated from the marine cyanobacterium Moorea producens has not been observed previously, findings which highlight how unsafe germicidal UV irradiation for sterilization of air, food, and water could be. Further, UV resistance of Bacillus licheniformis is being observed for the first time. T...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.697
更新日期:2019-04-01 00:00:00
abstract::Metal- and pesticide-tolerant biocontrol agents are preferred in integrated pest management, as such strains can be applied in combination with different pesticides. The Bacillus velezensis strain SZMC 6161J proved to be sensitive to copper, nickel, zinc, and cadmium, while manganese elevated its growth. At concentrat...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.660
更新日期:2019-03-01 00:00:00
abstract::The dynamics of swimming microorganisms is strongly affected by solid-liquid and air-liquid interfaces. In this paper, we characterize the motion of both single bacteria and microcolonies at an air-liquid interface. Both of them follow circular trajectories. Single bacteria preferentially show a counter-clockwise moti...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.532
更新日期:2018-02-01 00:00:00
abstract::Most DNA assembly methods require bacterial amplification steps, which restrict its application to genes that can be cloned in the bacterial host without significant toxic effects. However, genes that cannot be cloned in bacteria do not necessarily exert toxic effects on the final host. In order to tackle this issue, ...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.978
更新日期:2020-03-01 00:00:00
abstract::Increasing popularity of preservative-free cosmetics necessitates in-depth research, specifically as bacteria can react to local factors by important metabolic changes. In this respect, investigating the effect of cosmetic preparations on pathogenic strains of commensal species such as acneic forms of Cutibacterium ac...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.659
更新日期:2019-03-01 00:00:00
abstract::FtsZ - a prokaryotic tubulin homolog - is one of the central components of bacterial division machinery. At the early stage of cytokinesis FtsZ forms the so-called Z-ring at mid-cell that guides septum formation. Many approaches were used to resolve the structure of the Z-ring, however, researchers are still far from ...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.336
更新日期:2016-06-01 00:00:00
abstract::Microbial biofilms are communities of surface-adhered cells enclosed in a matrix of extracellular polymeric substances. Bacterial cells in biofilm are 10~1,000-fold more resistant to antimicrobials than the planktonic cells. Burgeoning antibiotic resistance in Pseudomonas aeruginosa biofilm has necessitated the develo...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.545
更新日期:2018-02-01 00:00:00
abstract::Aflatoxin M1 (AFM1 ) is a potent mycotoxin which causes serious health concerns in developing countries, where it is mainly found in milk, meat, and other foods. Biological detoxification is a promising method for eliminating AFM1 . The aim of this work was to search for AFM1 -degrading bacterial strains from animal w...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.663
更新日期:2019-03-01 00:00:00
abstract::Kalimantacin is an antimicrobial compound with strong antistaphylococcal activity that is produced by a hybrid trans-acyltransferase polyketide synthase/nonribosomal peptide synthetase system in Pseudomonas fluorescens BCCM_ID9359. We here present a systematic analysis of the substrate specificity of the glycine-incor...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.326
更新日期:2016-04-01 00:00:00
abstract::Brazil is the biggest producer of sweet oranges and the main exporter of concentrated orange juice in the world. Among the diseases that affect citriculture, Asiatic citrus canker, caused by the bacterial pathogen Xanthomonas citri, represents one of the most significant threats. The current Brazilian legislation regu...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.1104
更新日期:2020-09-01 00:00:00
abstract::The nitrogenase complex in the heterocysts of the filamentous freshwater cyanobacterium Anabaenasp. PCC 7120 fixes atmospheric nitrogen to allow diazotrophic growth. The heterocyst cell envelope protects the nitrogenase from oxygen and consists of a polysaccharide and a glycolipid layer that are formed by a complex pr...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.811
更新日期:2019-08-01 00:00:00
abstract::Rhodothermus marinus, a marine aerobic thermophile, was first isolated from an intertidal hot spring in Iceland. In recent years, the R. marinus strain PRI 493 has been genetically modified, which opens up possibilities for targeted metabolic engineering of the species, such as of the carotenoid biosynthetic pathway. ...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.536
更新日期:2018-02-01 00:00:00
abstract::The black pigmentation-related genes in Porphyromonas gingivalis are primarily involved in regulating gingipain functions. In this study, we identified a pigmentation-related gene, designated as pgn_0361. To characterize the role of pgn_0361 in regulating P. gingivalis-mediated epithelial cell detachment and inhibitio...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.1128
更新日期:2020-12-01 00:00:00
abstract::In Escherichia coli, coordinated activation and deactivation of DnaA allows for proper timing of the initiation of chromosomal synthesis at the origin of replication (oriC) and assures initiation occurs once per cell cycle. In vitro, acidic phospholipids reactivate DnaA, and in vivo depletion of acidic phospholipids, ...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.46
更新日期:2012-12-01 00:00:00
abstract::To investigate the possible effects of sulfamonomethoxine (SMM) on Nile tilapia (Oreochromis niloticus), we quantitatively evaluated the microbial shifts in the intestines of Nile tilapia in response to different doses of SMM (200 and 300 mg/kg) using 16S rRNA gene sequencing. At the phylum level, the control group (0...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.1116
更新日期:2020-11-01 00:00:00
abstract::The OMPs A (OmpA)-of Edwardsiella anguillarum and OmpU of V. vulnificus have been proven to be good antigens. In this study, after construction of a vector, a new recombinant Omp (rOMP) containing both OmpA and OmpU was expressed and purified. Then, the Japanese eels (Anguilla japonica) were intraperitoneally (i.p.) i...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.766
更新日期:2019-06-01 00:00:00
abstract::Protein lysine acetylation, a dynamic and reversible posttranslational modification, plays a crucial role in several cellular processes, including cell cycle regulation, metabolism, enzymatic activities, and protein interactions. Brenneria nigrifluens is a pathogen of walnut trees with shallow bark canker and can caus...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.952
更新日期:2020-01-01 00:00:00
abstract::Type II toxin-antitoxin (TA) modules are thought to mediate stress-responses by temporarily suppressing protein synthesis while cells redirect transcription to adapt to environmental change. Here, we show that YoeB, a ribosome-dependent mRNase toxin, is activated in Escherichia coli cells grown at elevated temperature...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.272
更新日期:2015-08-01 00:00:00
abstract::In cyanobacteria, genes conferring mercury resistance are not organized as mer-operon, unlike in other bacterial phyla. Synechocystis contains only a putative MerR regulator, Slr0701, and a mercury reductase, MerA, located aside from each other in the genome. The slr0701-mutant showed reduction in photosynthetic activ...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.838
更新日期:2019-09-01 00:00:00
abstract::The interactions of pathogens and phagocytes are complex. Our study demonstrated that Aeromonas hydrophila B11 can survive in the macrophagocytes of Tilapia mossambica. To explore the regulatory processes of A. hydrophila survival in the macrophagocytes, we used the mini-Tn10 transposon mutagenesis system to build a m...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.468
更新日期:2017-08-01 00:00:00
abstract::Pseudomonas aeruginosa and Staphylococcus aureus mixed-species biofilm infections are more resilient to biocide attacks compared to their single-species counterparts. Therefore, this study used an in vitro model recapitulating bacterial burdens seen in in vivo infections to investigate the interactions of P. aeruginos...
journal_title:MicrobiologyOpen
pub_type: 杂志文章
doi:10.1002/mbo3.427
更新日期:2017-06-01 00:00:00