Results 111 to 120 of about 505,000 (387)

Sequence Diversity of Neisseria meningitidis 16S rRNA Genes and Use of 16S rRNA Gene Sequencing as a Molecular Subtyping Tool [PDF]

Journal of Clinical Microbiology, 2002
ABSTRACT We investigated the diversity of the primary sequences of 16S rRNA genes among Neisseria meningitidis strains (Men) and evaluated the use of this approach as a molecular subtyping tool. We aligned and compared a 1,417-bp fragment of the 16S rRNA gene from 264 Men strains of serogroups A, B, C, and
Claudio T, Sacchi, Anne M, Whitney, Michael W, Reeves, Leonard W, Mayer, Tanja, Popovic   +4 more
openaire   +2 more sources

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

Sequence Comparison of Mitochondrial 16s rRNA Gene Segment in Penaeids

Asian Fisheries Science, 2007
A partial fragment of 16s rRNA mitochondrial gene was amplified by PCR from Penaeus monodon samples collected from the west and east coast regions of India. The amplified 520 bp of 16s rRNA mitochondrial gene segment of P.
M.S. SHEKHAR, G. GOPIKRISHNA, C. GOPAL, S.M. PILLAI, P. RAVICHANDRAN   +4 more
doaj   +1 more source

Novel hemotropic mycoplasmas are widespread and genetically diverse in vampire bats [PDF]

, 2017
Bats (Order: Chiroptera) have been widely studied as reservoir hosts for viruses of concern for human and animal health. However, whether bats are equally competent hosts of non-viral pathogens such as bacteria remains an important open question. Here,
Altizer, S.M., Becker, D.J., Bergner, L.M., Camus, M.S., Chizhikov, V.E., Orton, R.J., Streicker, D.G., Volokhov, D.V.   +7 more
core   +1 more source

A Quantitative Sequencing Framework for Absolute Abundance Measurements of Mucosal and Lumenal Microbial Communities [PDF]

, 2020
A fundamental goal in microbiome studies is determining which microbes affect host physiology. Standard methods for determining changes in microbial taxa measure relative, rather than absolute abundances.
Barlow, Jacob T., Bogatyrev, Said R., Ismagilov, Rustem F.   +2 more
core   +1 more source

Controlling for Contaminants in Low-Biomass 16S rRNA Gene Sequencing Experiments

mSystems, 2018
The relative scarcity of microbes in low-microbial-biomass environments makes accurate determination of community composition challenging. Identifying and controlling for contaminant bacterial DNA are critical steps in understanding microbial communities
Lisa Karstens, M. Asquith, S. Davin, D. Fair, W. Gregory, A. Wolfe, J. Braun, S. McWeeney   +7 more
semanticscholar   +1 more source

Polymorphism and gene conversion of the 16S rRNA genes in the multiple rRNA operons ofVibrio parahaemolyticus [PDF]

FEMS Microbiology Letters, 2005
The genome sequence of a strain of Vibrio parahaemolyticus holds 11 copies of rRNA operons (rrn) with identical 16S rRNA genes (rrs). Conversely, the species type strain contains two rrs classes differing in 10 nucleotide sites within a short segment of 25 bp.
González Escalona, Narjol, Romero Ormazábal, Jaime, Espejo Torres, Romilio   +2 more
openaire   +4 more sources

Relapsing–Remitting Multiple Sclerosis Is Associated With a Dysbiotic Oral Microbiome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Multiple sclerosis (MS) is a chronic autoimmune disorder characterized by inflammation, demyelination, and neurological impairment. While the gut microbiota's role in MS is extensively studied, the association between the oral microbiota and MS remains underexplored, particularly in North American cohorts.
Sukirth M. Ganesan, Meeta Yadav, Sudeep Ghimire, Peter C. Lehman, Apurva J. Patel, Sydney Woods, Heena Olalde, Jemmie Hoang, Mishelle Paullus, Catherine Cherwin, Christine Gill, Tracey Cho, Ashutosh K. Mangalam   +12 more
wiley   +1 more source

Planktonic and sediment-associated aerobic methanotrophs in two seep systems along the North American margin [PDF]

, 2008
Methane vents are of significant geochemical and ecological importance. Notable progress has been made towards understanding anaerobic methane oxidation in marine sediments, however, the diversity and distribution of aerobic methanotrophs in the water ...
Orphan, Victoria J., Tavormina, Patricia L., Ussler, William, III   +2 more
core   +4 more sources

Targeting the 16S rRNA Gene for Bacterial Identification in Complex Mixed Samples: Comparative Evaluation of Second (Illumina) and Third (Oxford Nanopore Technologies) Generation Sequencing Technologies

International Journal of Molecular Sciences, 2019
Rapid, accurate bacterial identification in biological samples is an important task for microbiology laboratories, for which 16S rRNA gene Sanger sequencing of cultured isolates is frequently used. In contrast, next-generation sequencing does not require
Raf Winand, Bert Bogaerts, Stefan Hoffman, Loïc Lefevre, M. Delvoye, Julien Van Braekel, Q. Fu, N. Roosens, S. D. De Keersmaecker, K. Vanneste   +9 more
semanticscholar   +1 more source