Abstract:
:Tunicates are useful models for exploring microbiomes because they have an innate immune system resembling that of chordates. Automated ribosomal RNA intergenic spacer analysis and High-Throughput Sequencing were used to compare the tunic microbiomes of Ciona robusta (formerly Ciona intestinalis type A), Ciona savignyi, Botrylloides leachi and Botryllus schlosseri sampled from three distinct locations with limited genetic connectivity. Bacterial phylotype profiles were conserved within each species, and there were no detectable differences between tunic and tunic + cuticle subsamples from an individual. Bacterial operational taxonomic unit (OTU) diversity was lowest for C. savignyi (320 ± 190 OTUs) and highest for B. schlosseri (1260 ± 190 OTUs). Each species had a distinct set of bacterial OTUs (pseudo-F = 3.0, p > 0.001), with the exception of B. leachi and B. schlosseri from one sampling location (t = 1.2, p = 0.09). Of note were OTUs assigned to Alphaproteobacteria from C. robusta plus Phyllobacteriaceae and Endozoicomonas from C. savignyi. These OTUs contributed 51, 22 and 10% of sequence reads, respectively, and are related to known bacterial symbionts. The within-species conservation of core OTUs across three distinct and co-occurring populations of tunicates provides compelling evidence that these tunicates foster defined microbiomes.
journal_name
Environ Microbiol Repjournal_title
Environmental microbiology reportsauthors
Cahill PL,Fidler AE,Hopkins GA,Wood SAdoi
10.1111/1758-2229.12391subject
Has Abstractpub_date
2016-08-01 00:00:00pages
470-8issue
4issn
1758-2229journal_volume
8pub_type
杂志文章abstract::One-component systems (OCSs) and cytosolic two-component regulatory systems (TCSs) appear to share the same biological function, which consists in the transcriptional control in response to the cellular concentration of signal molecules. However, cytosolic TCSs as compared with OCSs represent a genetic and metabolic b...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2009.00020.x
更新日期:2009-06-01 00:00:00
abstract::In complex environments such as cheeses, the lack of relevant information on the physiology and virulence expression of pathogenic bacteria and the impact of endogenous microbiota has hindered progress in risk assessment and control. Here, we investigated the behaviour of Staphylococcus aureus, a major foodborne patho...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2010.00230.x
更新日期:2011-06-01 00:00:00
abstract::Mycophagous (=fungus feeding) soil bacteria of the genus Collimonas have been shown to colonize and grow on hyphae of different fungal hosts as the only source of energy and carbon. The ability to exploit fungal nutrient resources might require a strategy for collimonads to sense fungi in the soil matrix. Oxalic acid ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12290
更新日期:2015-10-01 00:00:00
abstract::Provalidator is a web-based tool that facilitates the design and validation of generalized profiles of protein families in prokaryotes. This tool combines the nearly full automation of profile building with a search for family members in all available databases. The tool is useful for assigning a given protein to a sp...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2009.00067.x
更新日期:2009-12-01 00:00:00
abstract::Organohalide respiring bacteria (ORB) are capable of utilising organohalides as electron acceptors for the generation of cellular energy and consequently play an important role in the turnover of natural and anthropogenically-derived organohalides. In this study, the response of a Dehalobacter sp. strain UNSWDHB to th...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12444
更新日期:2016-10-01 00:00:00
abstract::Dual stable isotope probing has been used to infer rates of microbial biomass production and modes of carbon fixation. In order to validate this approach for assessing archaeal production, the methanogenic archaeon Methanosarcina barkeri was grown either with H2 , acetate or methanol with D2 O and 13 C-dissolved inorg...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12876
更新日期:2020-10-01 00:00:00
abstract::Several bacterial strains of the Pseudomonas genus provide plant growth stimulation, plant protection against pests or bioremediation. Among these bacteria, P. fluorescens Pf29Arp reduces the severity of take-all, a disease caused by the pathogenic fungus Gaeumannomyces graminis var. tritici (Ggt) on wheat roots. In t...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12048
更新日期:2013-06-01 00:00:00
abstract::A multiplex PCR was developed to detect pre-CTXΦ and CTXΦ in Vibrio cholerae. A total of 115 V. cholerae were tested, of which 42 V. cholerae O1 and 18 V. cholerae O139 contained CTXΦ. Six V. cholerae O139 contained only pre-CTXΦ and three V. cholerae O1 and 23 V. cholerae O139 contained both pre-CTXΦ and CTXΦ. None o...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2009.00085.x
更新日期:2010-02-01 00:00:00
abstract::The community composition of bacteria with highly dynamic abundance and activity was observed to be with low variability in a shallow lake sediment with frequent physical disturbance. This suggests that physical disturbance did not create more niches and did not lead to highly variable bacterial community. The major p...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2010.00221.x
更新日期:2011-04-01 00:00:00
abstract::Cyanobacteria, phototrophic organisms performing oxygenic photosynthesis, must adapt their metabolic processes to important environmental challenges, like those imposed by the succession of days and nights. Not surprisingly, certain regulatory proteins are found exclusively in this phylum. One of these unique factors,...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12688
更新日期:2019-08-01 00:00:00
abstract::The production of hydrogen (H2) is an inherent component of biological dinitrogen (N2) fixation, and there have been several studies quantifying H2 production relative to N2 fixation in cultures of diazotrophs. However, conducting the relevant measurements for a field population is more complex as shown by this study ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12069
更新日期:2013-10-01 00:00:00
abstract::This special issue highlights several recent discoveries in the microbial methane cycle, including the diversity and activity of methanotrophic bacteria in special habitats, distribution and contribution of the newly discovered Verrucomicrobia, metabolism of methane and related one-carbon compounds such as methanol an...
journal_title:Environmental microbiology reports
pub_type: 社论
doi:10.1111/j.1758-2229.2009.00089.x
更新日期:2009-10-01 00:00:00
abstract::The trophic interactions between viruses, bacteria and protists play a crucial role in structuring microbial communities and regulating nutrient and organic matter flux. Here, we show that the impact on viral density by heterotrophic flagellates is related to their feeding behaviour (feeding on sedimented particles - ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12119
更新日期:2014-08-01 00:00:00
abstract::For many centuries, hops (Humulus lupulus L.) have been used as essential ingredient in beers, providing the typical bitterness and hoppy flavour. However, the last few years the plant has gained increasing attention as a source of prenylflavonoids and in 1999, 8-prenylnaringenin (8-PN) was identified as the most pote...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2009.00011.x
更新日期:2009-04-01 00:00:00
abstract::In field conditions, grapevine roots normally are colonized by arbuscular mycorrhizal fungi (AMF). However, little is published, from either morphological or molecular studies, on the species composition of these symbionts in production vineyards. The AMF biodiversity of two Piedmont vineyards (at Neive and Lessona), ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2010.00160.x
更新日期:2010-08-01 00:00:00
abstract::Many species in the order Bacillales form a specialized cell type called a spore that is resistant to a range of environmental stresses. Transmission electron microscopy (TEM) reveals that the spore is comprised of a series of concentric shells, surrounding an interior compartment harbouring the spore DNA. The outermo...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12713
更新日期:2019-04-01 00:00:00
abstract::Free-living bacteria such as Pseudomonas putida are frequently exposed to temperature shifts and non-optimal growth conditions. We compared the transcriptome and metabolome of the cold adaptation of P. putida KT2440 and isogenic cold-sensitive transposon mutants carrying transposons in their cbrA, cbrB, pcnB, vacB, an...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12793
更新日期:2019-12-01 00:00:00
abstract::Solar panels located on high (Arctic and Antarctic) latitudes combine the harshness of the climate with that of the solar exposure. We report here that these polar solar panels are inhabited by similar microbial communities in taxonomic terms, dominated by Hymenobacter spp., Sphingomonas spp. and Ascomycota. Our resul...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12608
更新日期:2018-02-01 00:00:00
abstract::This study examined total uptake of extracellular polymeric substances (EPS) and glucose and the percentage of prokaryotic cells (Bacteria, Crenarchaea and Euryarchaea) consuming these compounds in the major water masses at the DYFAMED site (NW Mediterranean Sea). The potential assimilation rates of EPS at 10 m depth ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2011.00285.x
更新日期:2011-12-01 00:00:00
abstract::Bacteria can manipulate their surrounding environment through the secretion of proteins into other living organisms and into the extracellular milieu. In Gram stain negative bacteria this process is mediated by different types of secretion systems from type I through type VI secretion system (T1SS-T6SS). In this study...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2012.00394.x
更新日期:2013-02-01 00:00:00
abstract::The particulate methane monooxygenase (pMMO) in Methylocystis strain SB2 was found to be constitutively expressed in the absence of methane when the strain was grown on either acetate or ethanol. Real-time quantitative polymerase chain reaction (PCR) and reverse transcription-PCR showed that the expression of pmoA dec...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2010.00205.x
更新日期:2011-04-01 00:00:00
abstract::We undertook a large-scale epidemiological survey of commensal Escherichia coli in Trois-Sauts, an isolated village located in the south of French Guiana where human population exchanges are restricted and source of antibiotics controlled. Stools from 162 Wayampi Amerindians and rectal swabs from 33 human associated a...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2012.00374.x
更新日期:2013-02-01 00:00:00
abstract::The first Thiomicrospira species was isolated in 1972 and was described as a sulfur-oxidizing chemolithoautotroph. Since then, several other Thiomicrospira species have been recovered from around the globe and have been classified as common sulfur oxidizers. In the past, attempts to demonstrate hydrogen consumption of...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12350
更新日期:2016-02-01 00:00:00
abstract::Dehalococcoides mccartyi is a small, slow-growing bacterium of the phylum Chloroflexi that conserves energy using aliphatic and aromatic organohalides as electron acceptors, and hydrogen as sole electron donor. A recent study identified a protein complex in the membrane of strain CBDB1 comprising a Hup hydrogenase, a ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12560
更新日期:2017-10-01 00:00:00
abstract::The TM6 phylum belongs to the so-called microbial dark matter that gathers uncultivated bacteria detected only via DNA sequencing. Recently, the genome sequence of a TM6 bacterium (TM6SC1) has led to suggest that this bacterium would adopt an endosymbiotic life. In the present paper, free-living amoebae bearing a TM6 ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12343
更新日期:2015-12-01 00:00:00
abstract::KaiC protein is the pivotal component of the circadian clock in cyanobacteria. While KaiC family proteins are well-conserved throughout divergent phylogenetic lineages, studies of the physiological roles of KaiC proteins from other microorganisms have been limited. We examined the role of the KaiC proteins, KaiC1 and ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12662
更新日期:2018-12-01 00:00:00
abstract::Magnetotactic bacteria are capable of aligning and swimming along the geomagnetic field lines; such a behaviour is called magnetotaxis. Previous studies reported that bacteria in the northern hemisphere migrate preferentially towards the North Pole of the Earth's magnetic field (north-seeking, NS), whereas those in th...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2010.00150.x
更新日期:2010-10-01 00:00:00
abstract::Corals are inhabited by complex communities of microbes that affect their growth and survival. Several studies suggest that coral disease may be attributed to the success of vibrios in out-competing other bacteria in the mucus and tissues of corals. Vibrios utilize a variety of quorum sensing (QS) signal molecules to ...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2009.00122.x
更新日期:2010-02-01 00:00:00
abstract::Bacterial community compositions (BCC) associated with the cladoceran Bosmina coregoni and the cyclopoid copepod Thermocyclops oithonoides in oligotrophic Lake Stechlin versus eutrophic Lake Dagow (northeastern Germany) were compared using molecular techniques. We also transplanted the zooplankton from their native la...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/j.1758-2229.2008.00003.x
更新日期:2009-02-01 00:00:00
abstract::Although dissimilatory sulfate-reducing bacteria (SRB) are generally described as strictly anaerobic organisms with regard to growth, several reports have shown that some SRB, particularly Desulfovibrio species, are quite resistant to O2 . For example, SRB remain viable in many aerobic environments while some even red...
journal_title:Environmental microbiology reports
pub_type: 杂志文章
doi:10.1111/1758-2229.12479
更新日期:2016-12-01 00:00:00