Genome Sequence of Corynebacterium nuruki S6-4T, Isolated from Alcohol Fermentation Starter▿

Corynebacterium nuruki S6-4T, isolated from Korean alcohol fermentation starter, is a strictly aerobic, nonmotile, Gram-positive, and rod-shaped bacterium belonging to the genus Corynebacterium and the actinomycete group. We report here the draft genome sequence of C. nuruki strain S6-4T (3,106,595 bp, with a G+C content of 69.5%)

Draft Genome Sequence of Bacteroides faecis MAJ27T, a Strain Isolated from Human Feces

Despite the ecological importance of the dominant gut bacteria Bacteroides, few genomes have been defined. The Gram-negative, strictly anaerobic intestinal bacterium Bacteroides faecis MAJ27T was isolated from the feces of a healthy adult. Here, the draft genome sequence of the type strain B. faecis MAJ27 (6.11 Mbp) is reported

Viral Metagenomics Approaches for High-Resolution Screening of Multiplexed Arthropod and Plant Viral Communities

Viral metagenomic approaches have become essential for culture-independent and sequence-independent viral detection and characterization. This chapter describes an accurate and efficient approach to (1) concentrate viral particles from arthropods and plants, (2) remove contaminating non-encapsidated nucleic acids, (3) extract and amplify both viral DNA and RNA, and (4) analyze high-throughput sequencing (HTS) data by bioinformatics. Using this approach, up to 96 arthropod or plant samples can be multiplexed in a single HTS library

Protocol for Generating Infectious RNA Viromes from Complex Biological Samples

International audienc

Influence of 16S rRNA target region on the outcome of microbiome studies in soil and saliva samples

This work was financially supported by the Ministry of Economy and Competitiveness of Spain co-financed with European Regional Development Funds (References: CGL2015-71709-R and SAF2015-71714-R) and the fellowship PEJ2018-004702-A. The European Union also collaborated in the funding of this study (Euronanomed programme, Reference: TARBRAINFECT, and Innovative Medicines Initiative IMI2, Reference: 3TR-831434), as well as the Health Institute Carlos III as the local management institution (Reference: AC18/00008). A.S.L. and V.S.M. were supported by a fellowship from the Ministry of Education, Culture and Sport (FPU 17/05413 and FPU 16/05822), and the results presented in this article are part of A.S.L's doctoral thesis. M.O.G acknowledges for the funds received by the F.P.U. fellowship provided by University of Almeria.Next generation sequencing methods are widely used in evaluating the structure and functioning of microbial communities, especially those centered on 16S rRNA subunit. Since Illumina Miseq, the most used sequencing platform, does not allow the full sequencing of 16S rRNA gene, this study aims to evaluate whether the choice of different target regions might affect the outcome of microbiome studies regarding soil and saliva samples. V1V3, V3V4, V4V5 and V6V8 domains were studied, finding that while some regions showed differences in the detection of certain bacterial taxa and in the calculation of alpha diversity, especially in soil samples, the overall effect did not compromise the differentiation of any sample type in terms of taxonomic analysis at the genus level. 16S rRNA target regions did affect the detection of specific bacteria related to soil quality and development, and microbial genera used as health biomarkers in saliva. V1V3 region showed the closest similarity to internal sequencing control mock community B, suggesting it might be the most preferable choice regarding data reliability.European Union (EU) 3TR-831434Instituto de Salud Carlos III AC18/00008Ministry of Education, Culture and Sport FPU 17/05413 FPU 16/05822University of AlmeriaMinistry of Economy and Competitiveness of SpainEuropean Union (EU) CGL2015-71709-R SAF2015-71714-R PEJ2018-004702-

Total Concentrations of Virus and Bacteria in Indoor and Outdoor Air

Viruses play important roles in microbial ecology and some infectious diseases, but relatively little is known about the concentrations, sources, transformation, and fate of viruses in the atmosphere. We have measured total airborne concentrations of virus-like and bacterium-like particles (VLPs between 0.02 and 0.5 μm in size and BLPs between 0.5 and 5 μm) in nine locations: a classroom, a daycare center, a dining facility, a health center, three houses, an office, and outdoors. Indoor concentrations of both VLPs and BLPs were ∼10⁵ particles m^–3, and the virus:bacteria ratio was 0.9 ± 0.1 (mean ± standard deviation across different locations). There were no significant differences in concentration between different indoor environments. VLP and BLP concentrations in outdoor air were 2.6 and 1.6 times higher, respectively, than in indoor air. At the single outdoor site, the virus:bacteria ratio was 1.4