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https://www.readbyqxmd.com/read/28645188/temporal-variation-of-the-microbiome-is-dependent-on-body-region-in-a-wild-mammal-tamiasciurus-hudsonicus
#1
Colleen B Bobbie, Nadia C S Mykytczuk, Albrecht I Schulte-Hostedde
Microbial communities are increasingly being recognized as important to host health in wild mammals, but how these communities are characterized can have important consequences on the results of these studies. Previous research has explored temporal variation in microbial communities in humans and lab mammals, but few have investigated how microbiomes fluctuate in wild populations and none have examined the temporal dynamics of these fluctuations in different body regions on a wild mammal. Using Illumina MiSeq sequencing of the V3-V4 16S rRNA gene regions, we characterized the buccal and gut microbiomes of wild North American red squirrels, Tamiasciurus hudsonicus, to measure changes in these two microbiomes over short (< 2 weeks), medium (2-4 weeks) and long (> 1 month) term sampling periods...
June 22, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28643180/first-complete-genome-sequences-of-genogroup-v-genotype-3-porcine-sapoviruses-common-5-terminal-genomic-feature-of-sapoviruses
#2
Tomoichiro Oka, Yen Hai Doan, Takashi Shimoike, Kei Haga, Takenori Takizawa
Sapoviruses (SaVs) are enteric viruses and have been detected in various mammals. They are divided into multiple genogroups and genotypes based on the entire major capsid protein (VP1) encoding region sequences. In this study, we determined the first complete genome sequences of two genogroup V, genotype 3 (GV.3) SaV strains detected from swine fecal samples, in combination with Illumina MiSeq sequencing of the libraries prepared from viral RNA and PCR products. The lengths of the viral genome (7494 nucleotides [nt] excluding polyA tail) and short 5'-untranslated region (14 nt) as well as two predicted open reading frames are similar to those of other SaVs...
June 22, 2017: Virus Genes
https://www.readbyqxmd.com/read/28642971/high-diversity-of-bacterial-communities-in-developmental-stages-of-bactrocera-carambolae-insecta-tephritidae-revealed-by-illumina-miseq-sequencing-of-16s-rrna-gene
#3
Hoi-Sen Yong, Sze-Looi Song, Kah-Ooi Chua, Phaik-Eem Lim
Bactrocera carambolae is a highly polyphagous fruit pest of agricultural importance. This study reports the bacterial communities associated with the developmental stages of B. carambolae. The microbiota of the developmental stages were investigated by targeted 16S rRNA gene (V3-V4 region) sequencing using the Illumina MiSeq. At 97% similarity, there were 19 bacterial phyla and unassigned bacteria, comprising 39 classes, 86 orders, 159 families and 311 genera. The bacterial composition varied among the specimens of developmental stage and across developmental stages as well as exuviae...
June 23, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28638050/de-novo-yeast-genome-assemblies-from-minion-pacbio-and-miseq-platforms
#4
Francesca Giordano, Louise Aigrain, Michael A Quail, Paul Coupland, James K Bonfield, Robert M Davies, German Tischler, David K Jackson, Thomas M Keane, Jing Li, Jia-Xing Yue, Gianni Liti, Richard Durbin, Zemin Ning
Long-read sequencing technologies such as Pacific Biosciences and Oxford Nanopore MinION are capable of producing long sequencing reads with average fragment lengths of over 10,000 base-pairs and maximum lengths reaching 100,000 base- pairs. Compared with short reads, the assemblies obtained from long-read sequencing platforms have much higher contig continuity and genome completeness as long fragments are able to extend paths into problematic or repetitive regions. Many successful assembly applications of the Pacific Biosciences technology have been reported ranging from small bacterial genomes to large plant and animal genomes...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637164/biological-nutrient-removal-and-molecular-biological-characteristics-in-an-anaerobic-multistage-anaerobic-oxic-a-mao-process-to-treat-municipal-wastewater
#5
Xiao Huang, Wenyi Dong, Hongjie Wang, Shilong Jiang
This study aimed to present an anaerobic-multistage anaerobic/oxic (A-MAO) process to treat municipal wastewater. The average COD, NH4(+)-N, TN, and TP removal efficiency were 91.81%, 96.26%, 83.73% and 94.49%, respectively. Temperature plunge and C/N decrease have a certain impact on the modified process. Characteristics of microbial community, function microorganism, and correlation of microbial community with environmental variables in five compartments were carried out by Illumina Miseq high-throughput sequencing...
May 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28634475/cesarean-or-vaginal-birth-does-not-impact-the-longitudinal-development-of-the-gut-microbiome-in-a-cohort-of-exclusively-preterm-infants
#6
Christopher J Stewart, Nicholas D Embleton, Elizabeth Clements, Pamela N Luna, Daniel P Smith, Tatiana Y Fofanova, Andrew Nelson, Gillian Taylor, Caroline H Orr, Joseph F Petrosino, Janet E Berrington, Stephen P Cummings
The short and long-term impact of birth mode on the developing gut microbiome in neonates has potential implications for the health of infants. In term infants, the microbiome immediately following birth across multiple body sites corresponds to birth mode, with increased Bacteroides in vaginally delivered infants. We aimed to determine the impact of birth mode of the preterm gut microbiome over the first 100 days of life and following neonatal intensive care unit (NICU) discharge. In total, 867 stool samples from 46 preterm infants (21 cesarean and 25 vaginal), median gestational age 27 weeks, were sequenced (V4 region 16S rRNA gene, Illumina MiSeq)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28630433/gut-microbiota-of-liver-transplantation-recipients
#7
Li-Ying Sun, Yun-Sheng Yang, Wei Qu, Zhi-Jun Zhu, Lin Wei, Zhi-Sheng Ye, Jian-Rui Zhang, Xiao-Ye Sun, Zhi-Gui Zeng
The characteristics of intestinal microbial communities may be affected by changes in the pathophysiology of patients with end-stage liver disease. Here, we focused on the characteristics of intestinal fecal microbial communities in post-liver transplantation (LT) patients in comparison with those in the same individuals pre-LT and in healthy individuals. The fecal microbial communities were analyzed via MiSeq-PE250 sequencing of the V4 region of 16S ribosomal RNA and were then compared between groups. We found that the gut microbiota of patients with severe liver disease who were awaiting LT was significantly different from that of healthy controls, as represented by the first principal component (p = 0...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629190/biotechnological-potential-of-cold-adapted-pseudoalteromonas-spp-isolated-from-deep-sea-sponges
#8
Erik Borchert, Stephen Knobloch, Emilie Dwyer, Sinéad Flynn, Stephen A Jackson, Ragnar Jóhannsson, Viggó T Marteinsson, Fergal O'Gara, Alan D W Dobson
The marine genus Pseudoalteromonas is known for its versatile biotechnological potential with respect to the production of antimicrobials and enzymes of industrial interest. We have sequenced the genomes of three Pseudoalteromonas sp. strains isolated from different deep sea sponges on the Illumina MiSeq platform. The isolates have been screened for various industrially important enzymes and comparative genomics has been applied to investigate potential relationships between the isolates and their host organisms, while comparing them to free-living Pseudoalteromonas spp...
June 19, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28628218/microbiota-analysis-using-an-illumina-miseq-platform-to-sequence-16s-rrna-genes
#9
Alexis Rapin, Céline Pattaroni, Benjamin J Marsland, Nicola L Harris
The microbiota have been shown to play an important role in diverse biological processes including immunity, metabolism, and digestion. Assessing the exact composition of the microbiota has proven challenging due to the often unknown growth specificities of its members, and culture-based approaches typically fail to capture the complete diversity of microorganisms present. Next Generation Sequencing (NGS) methods provide an efficient means to gather information about cultured and uncultured members of the microbiota...
June 19, 2017: Current Protocols in Mouse Biology
https://www.readbyqxmd.com/read/28621324/marginal-bone-loss-around-non-submerged-implants-is-associated-with-salivary-microbiome-during-bone-healing
#10
Xiao-Bo Duan, Ting-Xi Wu, Yu-Chen Guo, Xue-Dong Zhou, Yi-Ling Lei, Xin Xu, An-Chun Mo, Yong-Yue Wang, Quan Yuan
Marginal bone loss during bone healing exists around non-submerged dental implants. The aim of this study was to identify the relationship between different degrees of marginal bone loss during bone healing and the salivary microbiome. One hundred patients were recruited, and marginal bone loss around their implants was measured using cone beam computed tomography during a 3-month healing period. The patients were divided into three groups according to the severity of marginal bone loss. Saliva samples were collected from all subjected and were analysed using 16S MiSeq sequencing...
June 16, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28620371/variation-in-soil-microbial-community-structure-associated-with-different-legume-species-is-greater-than-that-associated-with-different-grass-species
#11
Yang Zhou, Honghui Zhu, Shenglei Fu, Qing Yao
Plants are the essential factors shaping soil microbial community (SMC) structure. When most studies focus on the difference in the SMC structure associated different plant species, the variation in the SMC structure associated with phylogenetically close species is less investigated. Legume (Fabaceae) and grass (Poaceae) are functionally important plant groups; however, their influences on the SMC structure are seldom compared, and the variation in the SMC structure among legume or grass species is largely unknown...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28611502/deep-sequencing-reveals-highly-variable-gut-microbial-composition-of-invasive-fish-mossambicus-tilapia-oreochromis-mossambicus-collected-from-two-different-habitats
#12
Swapnil Sopan Gaikwad, Yogesh S Shouche, Wasudeo N Gade
Tilapia (Oreochromis mossambicus) is one of the most invasive fish found throughout the World and emerged as a major threat to the indigenous fishes in many countries. Investigating the gut microbial diversity of such fishes is one of the ways to understand its physiology. In the present study, we have explored the gut microbial community structure of tilapia using 16S rRNA gene sequencing on the Illumina Miseq platform. Our study showed significant differences in tilapia gut microbiota collected from different habitats (i...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611406/targeted-next-generation-sequencing-of-the-16s-23s-rrna-region-for-culture-independent-bacterial-identification-increased-discrimination-of-closely-related-species
#13
Artur J Sabat, Evert van Zanten, Viktoria Akkerboom, Guido Wisselink, Kees van Slochteren, Richard F de Boer, Ron Hendrix, Alexander W Friedrich, John W A Rossen, Anna M D Mirjam Kooistra-Smid
The aim of this study was to develop an easy-to-use culture-free diagnostic method based on next generation sequencing (NGS) of PCR amplification products encompassing whole 16S-23S rRNA region to improve the resolution of bacterial species identification. To determine the resolution of the new method 67 isolates were subjected to four identification methods: Sanger sequencing of the 16S rRNA gene; NGS of the 16S-23S rRNA region using MiSeq (Illumina) sequencer; Microflex MS (Bruker) and VITEK MS (bioMérieux)...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28606172/the-characterisation-of-microsatellite-markers-reveals-tetraploidy-in-the-greater-water-parsnip-sium-latifolium-apiaceae
#14
Naomi J Dalton, Gavin J Horsburgh, Deborah A Dawson
BACKGROUND: The Greater Water Parsnip, Sium latifolium (Apiaceae), is a marginal aquatic perennial currently endangered in England and consequently the focus of a number of conservation translocation projects. Microsatellite markers were developed for S. latifolium to facilitate comparison of genetic diversity and composition between natural and introduced populations. RESULTS: We selected 65 S. latifolium microsatellite (MiSeq) sequences and designed primer pairs for these...
June 12, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28603873/environmental-dna-enables-detection-of-terrestrial-mammals-from-forest-pond-water
#15
Masayuki Ushio, Hisato Fukuda, Toshiki Inoue, Kobayashi Makoto, Osamu Kishida, Keiichi Sato, Koichi Murata, Masato Nikaido, Tetsuya Sado, Yukuto Sato, Masamichi Takeshita, Wataru Iwasaki, Hiroki Yamanaka, Michio Kondoh, Masaki Miya
Terrestrial animals must have frequent contact with water to survive, implying that environmental DNA (eDNA) originating from those animals should be detectable from places containing water in terrestrial ecosystems. Aiming to detect the presence of terrestrial mammals using forest water samples, we applied a set of universal PCR primers (MiMammal, a modified version of fish universal primers) for metabarcoding mammalian eDNA. The versatility of MiMammal primers was tested in silico and by amplifying DNAs extracted from tissues...
June 11, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/28599222/microbial-community-dynamics-in-a-pilot-scale-mfc-aa-o-system-treating-domestic-sewage
#16
Rui Liu, Haireti Tursun, Xiaoshu Hou, Francis Odey, Yuan Li, Xiaohui Wang, Tao Xie
To investigate the effluent concentrations of pollutants, electricity production and microbial community structure, a pilot-scale microbial fuel cell coupled anaerobic-anoxic-oxic system for domestic sewage treatment was constructed, and continuously operated for more than 1 year under natural conditions. The results indicated that the treatment system ran well most of the whole period, but both effluent qualities and electricity production deteriorated at low temperature. The results of MiSeq sequencing showed that the microbial community structures of both anode and cathode biofilms changed extensively during long-term operation and were correlated with changes in effluent qualities...
May 20, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28598110/-microbial-community-structure-on-the-root-surface-of-patients-with-periodontitis
#17
Ju-Mei Zhang, Jian-Ye Zhou, Lei Bo, Xiao-Pan Hu, Kang-Li Jiao, Zhi-Jie Li, Yue-Hong Li, Zhi-Qiang Li
OBJECTIVES: To study the microbial community structure on the root surface of patients with periodontitis. METHODS: Bacterial plaque and tissues from the root neck (RN group),root middle (RM group) and root tine (RT group) of six teeth with mobility 3 in one patient with periodontitis were sampled.The V3V4 region of 16S rRNA was sequenced on the Illumina MiSeq platform.The microbial community structure was analyzed by Mothur,Qiime and SPSS software. RESULTS: The principal component analysis (PCoA) results indicated that the RM samples had a similar microbial community structure as that of the RT samples,which was significant different from that of the RN samples...
November 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28596735/diet-composition-and-variability-of-wild-octopus-vulgaris-and-alloteuthis-media-cephalopoda-paralarvae-a-metagenomic-approach
#18
Lorena Olmos-Pérez, Álvaro Roura, Graham J Pierce, Stéphane Boyer, Ángel F González
The high mortality of cephalopod early stages is the main bottleneck to grow them from paralarvae to adults in culture conditions, probably because the inadequacy of the diet that results in malnutrition. Since visual analysis of digestive tract contents of paralarvae provides little evidence of diet composition, the use of molecular tools, particularly next generation sequencing (NGS) platforms, offers an alternative to understand prey preferences and nutrient requirements of wild paralarvae. In this work, we aimed to determine the diet of paralarvae of the loliginid squid Alloteuthis media and to enhance the knowledge of the diet of recently hatched Octopus vulgaris paralarvae collected in different areas and seasons in an upwelling area (NW Spain)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28593543/the-effect-of-mg-2-on-digestion-performance-and-microbial-community-structures-in-sludge-digestion-systems
#19
CongCong Liu, Cheng Huang, XiuYun Sun, Rui Li, Jiansheng Li, Jinyou Shen, Weiqing Han, Lianjun Wang
The important criteria in anaerobic digestion is the rate-limiting step which decides the fate of value-added products especially from waste-activated sludge (WAS). Hence, the present study investigated the effect of magnesium (Mg(2+)) addition on anaerobic digestion of WAS. The lab-scale experiments were conducted at 25 °C with Mg(2+) doses ranging from 0.01 to 0.2 mol/L. Maximum total volatile fatty acids (VFAs) production (372.78 mg COD/L) occurred at a Mg(2+) dose of 0.2 mol/L, which was about eight times higher than the control tests...
June 7, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28592325/isolation-and-characterization-of-the-first-phage-infecting-ecologically-important-marine-bacteria-erythrobacter
#20
Longfei Lu, Lanlan Cai, Nianzhi Jiao, Rui Zhang
BACKGROUND: Erythrobacter comprises a widespread and ecologically significant genus of marine bacteria. However, no phage infecting Erythrobacter spp. has been reported to date. This study describes the isolation and characterization of phage vB_EliS-R6L from Erythrobacter. METHODS: Standard virus enrichment and double-layer agar methods were used to isolate and characterize the phage. Morphology was observed by transmission electron microscopy, and a one-step growth curve assay was performed...
June 7, 2017: Virology Journal
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