Results 31 to 40 of about 1,943,316 (288)

Polymicrobial airway bacterial communities in adult bronchiectasis patients [PDF]

, 2014
Background: Chronic airway infection contributes to the underlying pathogenesis of non-cystic fibrosis bronchiectasis (NCFBr). In contrast to other chronic airway infections, associated with COPD and CF bronchiectasis, where polymicrobial communities ...
Christopher J Stewart, Smith, Darren L., Jary, Hannah, Andrew Nelson, Perry, J. D. (John), Nelson, Andrew, Stewart, Christopher, Smith, Darren, Anthony De Soyza, Stephen P Cummings, Perry, A, John D Perry, Clare Lanyon, Purcell, Paul, Lanyon, Clare, Hannah Jary, Darren L Smith, Paul Purcell, de Soyza, Anthony, Perry, Audrey, Cummings, Stephen, Perry, John, Audrey Perry   +22 more
core   +1 more source

The coevolution of toxin and antitoxin genes drives the dynamics of bacterial addiction complexes and intragenomic conflict [PDF]

, 2012
Bacterial genomes commonly contain 'addiction' gene complexes that code for both a toxin and a corresponding antitoxin. As long as both genes are expressed, cells carrying the complex can remain healthy.
Rankin, Daniel J., Leighton A. Turner, Daniel J. Rankin, Heinemann, Jack A., Brown, Sam P., Sam P. Brown, Turner, Leighton A., Jack A. Heinemann   +7 more
core   +1 more source

The ecological role of bacteriocins in bacterial competition

Trends in Microbiology, 1999
Bacteriocins are an abundant class of antimicrobial molecules that appear to mediate population dynamics within species. The bacteriocins of Escherichia coli have served as a model for exploring the ecological role of these potent toxins. Studies suggest that colicins provide a competitive edge in nutrient-poor environments and that there might be a ...
Riley, Margaret A, Gordon, David
openaire   +3 more sources

Is bacterial persistence a social trait? [PDF]

, 2007
All three authors are supported by Royal Society fellowships.The ability of bacteria to evolve resistance to antibiotics has been much reported in recent years. It is less well-known that within populations of bacteria there are cells which are resistant
West, SA, West, Stuart, Gardner, A, Andy Gardner, Griffin, Ashleigh, West, Stuart A., Griffin, Ashleigh S., Ashleigh S Griffin, Stuart A West, Gardner, Andy, Griffin, AS   +10 more
core   +2 more sources

The Role of Type VI Secretion System Effectors in Target Cell Lysis and Subsequent Horizontal Gene Transfer

Cell Reports, 2017
Bacteria use type VI secretion systems (T6SSs) to manipulate host cells during pathogenesis or to kill competing bacteria, which, in some cases, increases horizontal gene transfer.
Peter David Ringel, Di Hu, Marek Basler
doaj   +1 more source

Competitive and Non-competitive Inhibitors of Bacterial Sulphate Reduction [PDF]

Journal of General Microbiology, 1952
Summary: The selenate ion, a remarkably powerful competitive antagonist of the reduction of sulphate by Desulphovibrio desulphuricans (Hildenborough) suspensions, did not affect reduction of sulphite and thiosulphate. Cysteine, methionine and glutathione had no anti-selenate effect. Selenate also inhibited the growth of D.
openaire   +2 more sources

Competition and predation as possible causes of bacterial rarity [PDF]

Environmental Microbiology, 2019
Summary We assembled communities of bacteria and exposed them to different nutrient concentrations with or without predation by protists. Taxa that were rare in the field were less abundant at low nutrient concentrations than common taxa, independent of predation.
Kurm, Viola, van der Putten, Wim H., Weidner, Simone, Geisen, Stefan, Snoek, Basten L., Bakx, Tanja, Gera Hol, Wilhelmina H.   +6 more
openaire   +6 more sources

Impact of Strain Competition on Bacterial Resistance in Immunocompromised Populations [PDF]

Antibiotics, 2020
Despite the risk of emerging drug resistance that occurs with the frequent use of antimicrobial agents, targeted and prophylactic antibiotics have been considered crucial to opportunistic infection management among the HIV/AIDS-immunocompromised.
Ashley A. DeNegre, Kellen Myers, Nina H. Fefferman   +2 more
openaire   +3 more sources

Virulence Genotype and Correlation of Clinical Severeness with Presence of the Type VI Secretion System in Klebsiella pneumoniae Isolates Causing Bloodstream Infections

Infection and Drug Resistance, 2022
Yin Zhang, Yuanhong Xu, Ying Huang Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of ChinaCorrespondence: Ying Huang; Yuanhong Xu, Department of Clinical Laboratory, The First ...
Zhang Y, Xu Y, Huang Y
doaj  

Polylysogeny magnifies competitiveness of a bacterial pathogen in vivo [PDF]

Evolutionary Applications, 2015
AbstractThe rise of next generation sequencing is revealing a hidden diversity of temperate phages within the microbial community. While a handful of these phages have been well characterized, for the vast majority, the role of phage carriage, and especially multiple phage carriage, is poorly understood.
Burns, N, James, C, Harrison, E
openaire   +3 more sources