Growth of Myxococcus xanthus in continuous flow cell bioreactors as a method for studying
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Growth of Myxococcus xanthus in continuous-flow-cell bioreactors as a method for studying development.
Nutrient sensors and developmental timers are two classes of genes vital to the establishment of early development in the social soil bacterium Myxococcus xanthus. The products of these genes trigger and regulate the earliest events that drive the colony from a vegetative state to aggregates, which ultimately leads to the formation of fruiting bodies and the cellular differentiation of the indi...
متن کاملLoss of social behaviors by myxococcus xanthus during evolution in an unstructured habitat.
Social behaviors are often targets of natural selection among higher organisms, but quantifying the effects of such selection is difficult. We have used the bacterium Myxococcus xanthus as a model system for studying the evolution of social interactions. Changes in the social behaviors of 12 M. xanthus populations were quantified after 1,000 generations of evolution in a liquid habitat, in whic...
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Myxococcus xanthus involves an extracellular NAD(P)+-containing protein. Genes Dev.9, 2964–2973 8 Kim, S.K. and Kaiser, D. (1990) C-factor: a cellcell signaling protein required for fruiting body morphogenesis of M. xanthus. Cell 61, 19–26 9 Ogawa, M. et al. (1996) FruA, a putative transcription factor essential for the development of Myxococcus xanthus. Mol. Microbiol. 22, 757–767 10 Sogaard-A...
متن کاملGlycine betaine biosynthesized from glycine provides an osmolyte for cell growth and spore germination during osmotic stress in Myxococcus xanthus.
Glycine sarcosine methyltransferase (Gsm) and sarcosine dimethylglycine methyltransferase (Sdm) catalyze glycine betaine synthesis from glycine. Disruption of the M. xanthus gsmA (MXAN 7068) or sdmA (MXAN 3190) gene, encoding Gsm or Sdm homologue proteins, respectively, generated mutants that exhibited a longer lag period of growth and delayed spore germination under osmostress.
متن کاملSigF, a new sigma factor required for a motility system of Myxococcus xanthus.
A new sigma factor, SigF, was identified from the social and developmental bacterium Myxococcus xanthus. SigF is required for fruiting body formation during development as well as social motility during vegetative growth. Analysis of gene expression indicates that it is possible that the sigF gene is involved in regulation of an unidentified gene for social motility.
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