Thermophilic anaerobic bacteria which ferment hemicellulose: characterization of organisms and identification of plasmids

  • Weimer P
  • Wagner L
  • Knowlton S
 et al. 
  • 10


    Mendeley users who have this article in their library.
  • 21


    Citations of this article.


Seven thermophilic anaerobic bacteria which ferment xylan were isolated from natural geothermal features in the western United States. Typically, these strains were Gram-negative non-sporeforming rods with an unusual double-layered cell wall which resembled that observed in Thermobacteroides acetoethylicus. The strains differed from known thermophilic anaerobes in their ability to utilize a very wide variety of carbohydrates and in their ability to grow in a chemically-defined medium and/or at pH 3.5. Four of the strains contained cryptic plasmids of 1.2 or 1.5 X 10(6) daltons. The taxonomic characteristics of the strains are discussed in terms of their relatedness to those of Thermoanaerobium, Thermoanaerobacter, and Thermobacteroides species.

Author-supplied keywords

  • Anaerobic
  • Geothermal
  • Hemicellulose
  • Plasmids
  • Thermoanaerobacter
  • Thermoanaerobium
  • Thermobacteroides
  • Thermophilic
  • Xylan

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text


  • Paul J. Weimer

  • L. Winona Wagner

  • Susan Knowlton

  • Thomas K. Ng

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free