Abstract:
:Yersinia ruckeri is the causative agent of enteric redmouth in fish and one of the major bacterial pathogens causing losses in salmonid aquaculture. Previously typing methods, including restriction enzyme analysis, pulsed-field gel electrophoresis and multilocus enzyme electrophoresis (MLEE) have indicated a clonal population structure. In this work, we describe a multilocus sequence typing (MLST) scheme for Y.ruckeri based on the internal fragment sequence of six housekeeping genes. This MLST scheme was applied to 103 Y.ruckeri strains from diverse geographic areas and hosts as well as environmental sources. Sequences obtained from this work were deposited and are available in a public database (http://publmst.org/yruckeri/). Thirty different sequence types (ST) were identified, 21 of which were represented by a single isolate, evidencing high genetic diversity. ST2 comprised more than one-third of the isolates and was most frequently observed among isolates from trout. Two major clonal complexes (CC) were identified by eBURST analysis showing a common evolutionary origin for 94 isolates forming 21 STs into CC1 and for 6 isolates of 6 STs in the CC2. It was also possible to associate some unique ST with isolates from recent outbreaks in vaccinated salmonid fish.
journal_name
Environ Microbioljournal_title
Environmental microbiologyauthors
Bastardo A,Ravelo C,Romalde JLdoi
10.1111/j.1462-2920.2012.02735.xsubject
Has Abstractpub_date
2012-08-01 00:00:00pages
1888-97issue
8eissn
1462-2912issn
1462-2920journal_volume
14pub_type
杂志文章abstract::Global change models indicate that rainfall patterns are likely to shift towards more extreme events concurrent with increasing atmospheric carbon dioxide concentration ([CO2 ]). Both changes in [CO2 ] and rainfall regime are known to impact above- and belowground communities, but the interactive effects of these glob...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13802
更新日期:2017-08-01 00:00:00
abstract::Very few marine microbial communities are well characterized even with the weight of research effort presently devoted to it. Only a small proportion of this effort has been aimed at investigating temporal community structure. Here we present the first report of the application of high-throughput pyrosequencing to inv...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.02017.x
更新日期:2009-12-01 00:00:00
abstract::The trophic linkage between marine bacteria and phytoplankton in the surface ocean is a key step in the global carbon cycle, with almost half of marine primary production transformed by heterotrophic bacterioplankton within hours to weeks of fixation. Early studies conceptualized this link as the passive addition and ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13834
更新日期:2017-09-01 00:00:00
abstract::Resting spore formation of some aphid-pathogenic Entomophthorales is important for the seasonal pattern of their prevalence and survival but this process is poorly understood. To explore the possible mechanism involved in the process, Pandora nouryi (obligate aphid pathogen) interacted with green peach aphid Myzus per...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2008.01577.x
更新日期:2008-07-01 00:00:00
abstract::While the dynamics of microbial community assembly driven by environmental perturbations have been extensively studied, our understanding is far from complete, particularly for light-induced perturbations. Extremely halophilic communities thriving in coastal solar salterns are mainly influenced by two environmental fa...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14790
更新日期:2019-11-01 00:00:00
abstract::Certain filamentous cyanobacteria, including Aphanizomenon ovalisporum, are potentially toxic owing to the formation of the hepatotoxin cylindrospermopsin. We previously identified a gene cluster in A. ovalisporum likely to be involved in cylindrospermopsin biosynthesis, including amidinotransferase (aoaA) and polyket...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01519.x
更新日期:2008-04-01 00:00:00
abstract::Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease in Canada. The worldwide genetic structure of Pst populations have been characterized, excluding Canada. Here, we elucidated the genetic structure of the western Canadian Pst population using molecular markers, revealing th...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14067
更新日期:2018-04-01 00:00:00
abstract::Methyl-coenzyme M reductase (MCR) has been originally identified to catalyse the final step of the methanogenesis pathway. About 20 years ago anaerobic methane-oxidizing archaea (ANME) were discovered that use MCR enzymes to activate methane. ANME thrive at the thermodynamic limit of life, are slow-growing, and in mos...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/1462-2920.15057
更新日期:2020-05-04 00:00:00
abstract::Tropical ecosystems remain poorly understood and this is particularly true for belowground soil fungi. Soil fungi may respond to plant identity when, for example, plants differentially allocate resources belowground. However, spatial and temporal heterogeneity in factors such as plant inputs, moisture, or nutrients ca...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13342
更新日期:2016-12-01 00:00:00
abstract::Recent scenarios of fresh produce contamination by human enteric pathogens have resulted in severe food-borne outbreaks, and a new paradigm has emerged stating that some human-associated bacteria can use plants as secondary hosts. As a consequence, there has been growing concern in the scientific community about these...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13389
更新日期:2016-12-01 00:00:00
abstract::The annual dynamics of three different ammonia-oxidizing archaea (AOA) ecotypes (amoA gene) and of the SAGMGC-1 (Nitrosotalea-like aquatic Thaumarchaeota) group (16S rRNA gene) were studied by newly designed specific primers and quantitative polymerase chain reaction analysis in a deep oligotrophic high mountain lake ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12191
更新日期:2014-03-01 00:00:00
abstract::Cell cycle regulation is pivotal for proper cell division and cellular differentiation in eukaryotic cells. The central regulators that govern eukaryotic cell cycle progression are cyclin-dependent kinases (CDKs) and their partners. Here, we report that Magnaporthe oryzae CKS1 encodes a cyclin-dependent kinase subunit...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13796
更新日期:2017-10-01 00:00:00
abstract::The high genomic G+C group of Actinobacteria possesses a variety of physiological and metabolic properties, and exhibits diverse lifestyles and ecological distribution. In recent years, Actinobacteria have been found to frequently dominate samples obtained from freshwater samples. Furthermore, phylogenetic analyses ha...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.02024.x
更新日期:2009-12-01 00:00:00
abstract::Bacteria in the SAR11 clade are highly abundant in marine surface waters, but currently little is known about the carbon compounds that support these large heterotrophic populations. To better understand the carbon requirements of these organisms, we conducted a multiphasic exploration of carbohydrate utilization amon...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.02092.x
更新日期:2010-02-01 00:00:00
abstract::Wide-spread abundance in soil and water, coupled with high toxicity have put arsenic at the top of the list of environmental contaminants. Early studies demonstrated that both concentration and the valence state of inorganic arsenic (arsenite, As(III) vs. arsenate As(V)) can be modulated by microbes. Using genetics, t...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13615
更新日期:2017-02-01 00:00:00
abstract::Sensing potential nitrogen-containing respiratory substrates such as nitrate, nitrite, hydroxylamine, nitric oxide (NO) or nitrous oxide (N2 O) in the environment and subsequent upregulation of corresponding catabolic enzymes is essential for many microbial cells. The molecular mechanisms of such adaptive responses ar...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13060
更新日期:2016-09-01 00:00:00
abstract::Nutrient scarcity is a common condition in nature, but the resulting extremely low growth rates (below 0.025 h(-1) ) are an unexplored research area in Bacillus subtilis. To understand microbial life in natural environments, studying the adaptation of B. subtilis to near-zero growth conditions is relevant. To this end...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12676
更新日期:2015-02-01 00:00:00
abstract::To cope with life in hypersaline environments, halophilic archaeal proteins are enriched in acidic amino acids. This strategy does not, however, offer a response to transient changes in salinity, as would post-translational modifications. To test this hypothesis, N-glycosylation of the Haloferax volcanii S-layer glyco...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2011.02625.x
更新日期:2012-03-01 00:00:00
abstract::DNA-SIP (stable isotope probing) was conducted on anaerobic municipal solid waste samples incubated with (13)C-cellulose, (13)C-glucose and (13)C-acetate under mesophilic conditions. A total of 567 full-length bacterial and 448 1100-bp-length archaeal 16S rRNA gene sequences were analysed. In the clone libraries deriv...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2008.01810.x
更新日期:2009-04-01 00:00:00
abstract::Hopanoids are bacterial surrogates of eukaryotic membrane sterols and among earth's most abundant natural products. Their molecular fossils remain in sediments spanning more than a billion years. However, hopanoid metabolism and function are not fully understood. Burkholderia species are environmental opportunistic pa...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12509
更新日期:2015-03-01 00:00:00
abstract::Two-component system (TCS) signaling circuits regulate numerous cellular processes in response to environmental cues in both prokaryotic and eukaryotic cells. These signaling circuits are all based on phosphoryl-group transfers between histidine and aspartate containing modules of sensor kinase and response regulator ...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/1462-2920.13397
更新日期:2016-10-01 00:00:00
abstract::The contribution of Chloroflexi-type SAR202 cells to total picoplankton and bacterial abundance and uptake of D- and L-aspartic acids (Asp) was determined in the different meso- and bathypelagic water masses of the (sub)tropical Atlantic (from 35 degrees N to 5 degrees S). Fluorescence in situ hybridization (FISH) rev...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2008.01627.x
更新日期:2008-07-01 00:00:00
abstract::Gcn5 is a core histone acetyltransferase that catalyzes histone H3 acetylation on N-terminal lysine residues in yeasts and was reported to catalyze H3K9/K14 acetylation required for activating asexual development in Aspergillus. Here, we report a localization of Gcn5 ortholog in the nucleus and cytoplasm of Beauveria ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14066
更新日期:2018-04-01 00:00:00
abstract::Mucormycosis is an emergent, fatal fungal infection of humans and warm-blooded animals caused by species of the order Mucorales. Immune cells of the innate immune system serve as the first line of defence against inhaled spores. Alveolar macrophages were challenged with the mucoralean fungus Lichtheimia corymbifera an...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15140
更新日期:2020-09-01 00:00:00
abstract::More effective control of membrane biofouling in membrane bioreactors (MBRs) lies in the fundamental understanding of the pioneer microorganisms responsible for surface colonization that leads to biofilm formation. In this study, the composition of the planktonic and sessile microbial communities inhabiting four labor...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00909.x
更新日期:2006-03-01 00:00:00
abstract::To determine if different algal viruses (Phycodnaviridae) share common patterns of seasonal abundance, quantitative PCR methods were developed and applied to monitor the abundances of three different viruses in Lake Ontario, Canada over 13 months. Throughout the year, the abundances of two different phycodnavirus polB...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.01988.x
更新日期:2009-10-01 00:00:00
abstract::Despite its environmental robustness Pseudomonas putida strain KT2440 is very sensitive to DNA damage and displays poor homologous recombination efficiencies. To gain an insight into this deficiency isogenic ∆recA and ∆lexA1 derivatives of prophage-free strain P. putida EM173 were generated and responses of the recA a...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15384
更新日期:2021-01-03 00:00:00
abstract::We investigated to what extent a European songbird (Parus major) selectively transmits and amplifies Borrelia burgdorferi s.l. bacteria. Borrelia-naïve birds were recurrently exposed to Ixodes ricinus nymphs carrying a community of more than 34 5S-23S genotypes belonging to five genospecies (Borrelia garinii, Borrelia...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12304
更新日期:2014-09-01 00:00:00
abstract::Iron is the most abundant redox-active metal in the Earth's crust. The one electron transfer between the two most common redox states, Fe(II) and Fe(III), plays a role in a huge range of environmental processes from mineral formation and dissolution to contaminant remediation and global biogeochemical cycling. It has ...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/1462-2920.14328
更新日期:2018-10-01 00:00:00
abstract::At deep-sea hydrothermal vents, microbial communities thrive across geochemical gradients above, at, and below the seafloor. In this study, we determined the gene content and transcription patterns of microbial communities and specific populations to understand the taxonomy and metabolism both spatially and temporally...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14011
更新日期:2018-02-01 00:00:00