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(Bdellovibrio)
545 results
  • A Riboflavin Transporter in Bdellovibrio exovorous JSS. [Journal Article]
    J Mol Microbiol Biotechnol 2019; :1-8Rodionova IA, Heidari Tajabadi F, … Saier MH
  • The ImpX transporters of the drug/metabolite transporter superfamily were first proposed to transport riboflavin (RF; vitamin B2) based on findings of a cis-regulatory RNA element responding to flavin mononucleotide (an FMN riboswitch). Bdellovibrio exovorous JSS has a homolog belonging to this superfamily. It has 10 TMSs and shows 30% identity to the previously characterized ImpX transporter fro…
  • Structural basis for activation of a diguanylate cyclase required for bacterial predation in Bdellovibrio. [Journal Article]
    Nat Commun 2019; 10(1):4086Meek RW, Cadby IT, … Lovering AL
  • The bacterial second messenger cyclic-di-GMP is a widespread, prominent effector of lifestyle change. An example of this occurs in the predatory bacterium Bdellovibrio bacteriovorus, which cycles between free-living and intraperiplasmic phases after entering (and killing) another bacterium. The initiation of prey invasion is governed by DgcB (GGDEF enzyme) that produces cyclic-di-GMP in response …
  • Viscosity has Dichotomous Effects on Bdellovibrio bacteriovorus HD100 Predation. [Journal Article]
    Environ Microbiol 2019Im H, Kwon H, … Mitchell RJ
  • B. bacteriovorus HD100 is a highly motile predatory bacterium that consumes other Gram-negative bacteria for its sustenance. Here we describe the impacts the media viscosity has both on the motility of predator and its attack rates. Experiments performed in polyethylene glycol (PEG) solutions, a linear polymer, found a viscosity of 10 mPa-s (5% PEG) negatively impacted predation over a 24-hr peri…
  • Assessment of predatory bacteria and prey interactions using culture-based methods and EMA-qPCR. [Journal Article]
    Microbiol Res 2019; 228:126305Waso M, Khan S, Khan W
  • Traditional culture-based enumeration methods were compared with the ethidium monoazide quantitative polymerase chain reaction (EMA-qPCR) technique to assess Bdellovibrio-and-like-organisms (BALOs) predator-prey interactions. Gram-negative [Pseudomonas spp. and Klebsiella pneumoniae (K. pneumoniae)] and Gram-positive [Staphylococcus aureus (S. aureus) and Enterococcus faecium (E. faecium)] organi…
  • Nucleotide signaling pathway convergence in a cAMP-sensing bacterial c-di-GMP phosphodiesterase. [Journal Article]
    EMBO J 2019; 38(17):e100772Cadby IT, Basford SM, … Lovering AL
  • Bacterial usage of the cyclic dinucleotide c-di-GMP is widespread, governing the transition between motile/sessile and unicellular/multicellular behaviors. There is limited information on c-di-GMP metabolism, particularly on regulatory mechanisms governing control of EAL c-di-GMP phosphodiesterases. Herein, we provide high-resolution structures for an EAL enzyme Bd1971, from the predatory bacteri…
  • Ecological Functions of Agricultural Soil Bacteria and Microeukaryotes in Chitin Degradation: A Case Study. [Journal Article]
    Front Microbiol 2019; 10:1293Wieczorek AS, Schmidt O, … Kolb S
  • Chitin provides a valuable carbon and nitrogen source for soil microorganisms and is a major component of particulate organic matter in agricultural soils. To date, there is no information on interaction and interdependence in chitin-degrading soil microbiomes. Since microbial chitin degradation occurs under both oxic and anoxic conditions and both conditions occur simultaneously in soil, the com…
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